Advisory boundary-shape measurements
District compactness, without pretending it proves intent.
Compare Polsby–Popper and convex-hull ratios for official 2024 congressional and state legislative boundaries. Detailed measurements are checked against Census 1:500,000 geometry so resolution-sensitive shapes remain visible instead of becoming false precision.
Compactness is a descriptive screen, not a gerrymandering severity score.
Low values can reflect coastlines, islands, political subdivisions, communities of interest, legal requirements, or map resolution. They do not establish partisan intent, illegality, representational quality, fraud, or misconduct.
Comparable shape metrics
Official plan boundaries
Showing 3,001–3,100 of 7,272
| District | Type | Polsby–Popper | Convex hull | Relative percentile | Resolution check | Boundary detail |
|---|---|---|---|---|---|---|
| NJ · State Senate District 19GEOID 34019 · effective 2024-01-01 | State legislative upper chamber | 0.293500K: 0.280 | 0.673500K: 0.646 | 43.1middle or higher | stablePP difference 4.7% | 79.376 km1,010 vertices · 1 part · 0 holes |
| NJ · Assembly District 19GEOID 34019 · effective 2024-01-01 | State legislative lower chamber | 0.293500K: 0.280 | 0.673500K: 0.646 | 38.6middle or higher | stablePP difference 4.7% | 79.376 km1,010 vertices · 1 part · 0 holes |
| AL · State House District 2GEOID 01002 · effective 2024-01-01 | State legislative lower chamber | 0.293500K: 0.301 | 0.702500K: 0.702 | 38.7middle or higher | stablePP difference 2.5% | 234.894 km3,377 vertices · 1 part · 0 holes |
| GA · State House District 36GEOID 13036 · effective 2024-01-01 | State legislative lower chamber | 0.293500K: 0.303 | 0.821500K: 0.821 | 38.7middle or higher | stablePP difference 3.3% | 67.583 km1,384 vertices · 1 part · 0 holes |
| MS · State Senate District 48GEOID 28048 · effective 2024-01-01 | State legislative upper chamber | 0.293500K: 0.174 | 0.678500K: 0.342 | 43.1middle or higher | resolution sensitivePP difference 40.7% | 152.649 km1,485 vertices · 1 part · 0 holes |
| PA · State Senate District 40GEOID 42040 · effective 2024-01-01 | State legislative upper chamber | 0.293500K: 0.298 | 0.741500K: 0.741 | 43.2middle or higher | stablePP difference 1.6% | 345.209 km4,079 vertices · 1 part · 0 holes |
| MD · State Legislative Subdistrict 38AGEOID 2438A · effective 2024-01-01 | State legislative lower chamber | 0.294500K: 0.128 | 0.813500K: 0.708 | 38.7middle or higher | resolution sensitivePP difference 56.3% | 327.779 km3,526 vertices · 1 part · 0 holes |
| NH · State House District Strafford 08GEOID 33808 · effective 2024-01-01 | State legislative lower chamber | 0.294500K: 0.305 | 0.740500K: 0.740 | 38.7middle or higher | stablePP difference 3.8% | 21.462 km529 vertices · 1 part · 0 holes |
| OK · State Senate District 27GEOID 40027 · effective 2024-01-01 | State legislative upper chamber | 0.294500K: 0.294 | 0.640500K: 0.640 | 43.2middle or higher | stablePP difference 0.1% | 1,228.993 km5,317 vertices · 1 part · 0 holes |
| VA · State House District 87GEOID 51087 · effective 2024-01-01 | State legislative lower chamber | 0.294500K: 0.443 | 0.732500K: 0.822 | 38.8middle or higher | resolution sensitivePP difference 33.8% | 66.46 km1,310 vertices · 1 part · 0 holes |
| AL · State Senate District 23GEOID 01023 · effective 2024-01-01 | State legislative upper chamber | 0.294500K: 0.300 | 0.790500K: 0.790 | 43.3middle or higher | stablePP difference 2.1% | 897.777 km7,254 vertices · 1 part · 0 holes |
| PA · State House District 168GEOID 42168 · effective 2024-01-01 | State legislative lower chamber | 0.294500K: 0.307 | 0.689500K: 0.688 | 38.8middle or higher | stablePP difference 4.4% | 69.074 km2,048 vertices · 1 part · 0 holes |
| PA · State Senate District 39GEOID 42039 · effective 2024-01-01 | State legislative upper chamber | 0.294500K: 0.307 | 0.790500K: 0.790 | 43.3middle or higher | stablePP difference 4.3% | 259.041 km6,158 vertices · 1 part · 0 holes |
| NV · Assembly District 4GEOID 32004 · effective 2024-01-01 | State legislative lower chamber | 0.294500K: 0.294 | 0.738500K: 0.738 | 38.8middle or higher | stablePP difference 0.1% | 47.662 km945 vertices · 1 part · 0 holes |
| WI · Assembly District 82GEOID 55082 · effective 2024-01-01 | State legislative lower chamber | 0.294500K: 0.323 | 0.853500K: 0.854 | 38.8middle or higher | stablePP difference 9.0% | 57.416 km1,055 vertices · 1 part · 0 holes |
| MN · Congressional District 3GEOID 2703 · effective 2024-01-01 | U.S. House | 0.294500K: 0.299 | 0.725500K: 0.725 | 62.3middle or higher | stablePP difference 1.8% | 239.012 km3,917 vertices · 1 part · 0 holes |
| WI · Assembly District 99GEOID 55099 · effective 2024-01-01 | State legislative lower chamber | 0.294500K: 0.302 | 0.737500K: 0.738 | 38.8middle or higher | stablePP difference 2.7% | 158.726 km2,143 vertices · 1 part · 0 holes |
| IA · State Senate District 41GEOID 19041 · effective 2024-01-01 | State legislative upper chamber | 0.294500K: 0.295 | 0.773500K: 0.773 | 43.4middle or higher | stablePP difference 0.3% | 313.278 km2,597 vertices · 1 part · 0 holes |
| NC · State Senate District 33GEOID 37033 · effective 2024-01-01 | State legislative upper chamber | 0.294500K: 0.297 | 0.716500K: 0.716 | 43.4middle or higher | stablePP difference 1.1% | 320.683 km6,550 vertices · 1 part · 0 holes |
| AR · State House District 74GEOID 05074 · effective 2024-01-01 | State legislative lower chamber | 0.294500K: 0.297 | 0.717500K: 0.719 | 38.9middle or higher | stablePP difference 1.1% | 32.465 km767 vertices · 1 part · 0 holes |
| NM · State House District 42GEOID 35042 · effective 2024-01-01 | State legislative lower chamber | 0.294500K: 0.300 | 0.756500K: 0.756 | 38.9middle or higher | stablePP difference 2.0% | 403.849 km7,954 vertices · 1 part · 0 holes |
| VA · Congressional District 4GEOID 5104 · effective 2024-01-01 | U.S. House | 0.294500K: 0.295 | 0.852500K: 0.849 | 62.5middle or higher | stablePP difference 0.4% | 624.892 km17,145 vertices · 1 part · 0 holes |
| CT · State House District 88GEOID 09088 · effective 2024-01-01 | State legislative lower chamber | 0.294500K: 0.306 | 0.652500K: 0.654 | 38.9middle or higher | stablePP difference 3.8% | 38.077 km889 vertices · 1 part · 0 holes |
| MI · State House District 41GEOID 26041 · effective 2024-01-01 | State legislative lower chamber | 0.294500K: 0.301 | 0.791500K: 0.791 | 38.9middle or higher | stablePP difference 2.4% | 60.479 km665 vertices · 1 part · 0 holes |
| IL · State House District 118GEOID 17118 · effective 2024-01-01 | State legislative lower chamber | 0.294500K: 0.304 | 0.718500K: 0.718 | 38.9middle or higher | stablePP difference 3.1% | 379.309 km4,809 vertices · 1 part · 0 holes |
| MO · Congressional District 2GEOID 2902 · effective 2024-01-01 | U.S. House | 0.294500K: 0.298 | 0.800500K: 0.800 | 62.7middle or higher | stablePP difference 1.3% | 448.724 km6,390 vertices · 1 part · 0 holes |
| MA · Middlesex and Norfolk DistrictGEOID 25D13 · effective 2024-01-01 | State legislative upper chamber | 0.294500K: 0.312 | 0.681500K: 0.681 | 43.5middle or higher | stablePP difference 5.8% | 112.166 km2,492 vertices · 1 part · 0 holes |
| AL · State House District 38GEOID 01038 · effective 2024-01-01 | State legislative lower chamber | 0.294500K: 0.306 | 0.791500K: 0.792 | 39.0middle or higher | stablePP difference 3.9% | 197.968 km3,215 vertices · 1 part · 0 holes |
| KY · State House District 62GEOID 21062 · effective 2024-01-01 | State legislative lower chamber | 0.294500K: 0.305 | 0.850500K: 0.850 | 39.0middle or higher | stablePP difference 3.5% | 164.135 km2,862 vertices · 1 part · 0 holes |
| CT · State House District 21GEOID 09021 · effective 2024-01-01 | State legislative lower chamber | 0.294500K: 0.304 | 0.752500K: 0.753 | 39.0middle or higher | stablePP difference 3.3% | 52.266 km818 vertices · 1 part · 0 holes |
| AR · State House District 41GEOID 05041 · effective 2024-01-01 | State legislative lower chamber | 0.294500K: 0.297 | 0.752500K: 0.752 | 39.0middle or higher | stablePP difference 0.8% | 300.193 km3,376 vertices · 1 part · 0 holes |
| KY · State Senate District 24GEOID 21024 · effective 2024-01-01 | State legislative upper chamber | 0.294500K: 0.302 | 0.724500K: 0.724 | 43.5middle or higher | stablePP difference 2.6% | 268.101 km2,952 vertices · 1 part · 0 holes |
| AR · State House District 1GEOID 05001 · effective 2024-01-01 | State legislative lower chamber | 0.294500K: 0.320 | 0.851500K: 0.852 | 39.0middle or higher | stablePP difference 8.0% | 397.31 km6,854 vertices · 1 part · 0 holes |
| DE · State Senate District 13GEOID 10013 · effective 2024-01-01 | State legislative upper chamber | 0.295500K: 0.308 | 0.801500K: 0.804 | 43.6middle or higher | stablePP difference 4.4% | 42.036 km955 vertices · 1 part · 0 holes |
| NE · State Senate District 18GEOID 31018 · effective 2024-01-01 | State legislative upper chamber | 0.295500K: 0.296 | 0.690500K: 0.690 | 43.6middle or higher | stablePP difference 0.5% | 61.865 km558 vertices · 1 part · 0 holes |
| ME · State House District 80GEOID 23080 · effective 2024-01-01 | State legislative lower chamber | 0.295500K: 0.306 | 0.709500K: 0.709 | 39.1middle or higher | stablePP difference 3.6% | 127.048 km1,891 vertices · 1 part · 0 holes |
| WA · Legislative (Senate) District 21GEOID 53021 · effective 2024-01-01 | State legislative upper chamber | 0.295500K: 0.231 | 0.740500K: 0.636 | 43.7middle or higher | resolution sensitivePP difference 21.6% | 79.455 km1,936 vertices · 1 part · 0 holes |
| WA · Legislative (House) District 21GEOID 53021 · effective 2024-01-01 | State legislative lower chamber | 0.295500K: 0.231 | 0.740500K: 0.636 | 39.1middle or higher | resolution sensitivePP difference 21.6% | 79.455 km1,936 vertices · 1 part · 0 holes |
| NM · State House District 48GEOID 35048 · effective 2024-01-01 | State legislative lower chamber | 0.295500K: 0.305 | 0.754500K: 0.756 | 39.1middle or higher | stablePP difference 3.2% | 30.492 km938 vertices · 1 part · 0 holes |
| LA · State House District 64GEOID 22064 · effective 2024-01-01 | State legislative lower chamber | 0.295500K: 0.310 | 0.796500K: 0.796 | 39.1middle or higher | stablePP difference 5.0% | 126.026 km3,050 vertices · 1 part · 0 holes |
| MO · State Senate District 29GEOID 29029 · effective 2024-01-01 | State legislative upper chamber | 0.295500K: 0.295 | 0.640500K: 0.640 | 43.7middle or higher | stablePP difference 0.1% | 526.141 km5,004 vertices · 1 part · 0 holes |
| MO · State House District 123GEOID 29123 · effective 2024-01-01 | State legislative lower chamber | 0.295500K: 0.297 | 0.731500K: 0.732 | 39.1middle or higher | stablePP difference 0.8% | 243.403 km2,899 vertices · 1 part · 0 holes |
| NY · State Senate District 43GEOID 36043 · effective 2024-01-01 | State legislative upper chamber | 0.295500K: 0.304 | 0.740500K: 0.741 | 43.8middle or higher | stablePP difference 3.0% | 374.96 km2,387 vertices · 1 part · 0 holes |
| MD · State Legislative Subdistrict 33CGEOID 2433C · effective 2024-01-01 | State legislative lower chamber | 0.295500K: 0.245 | 0.780500K: 0.706 | 39.2middle or higher | stablePP difference 16.9% | 65.63 km798 vertices · 1 part · 0 holes |
| MN · State Senate District 13GEOID 27013 · effective 2024-01-01 | State legislative upper chamber | 0.295500K: 0.308 | 0.762500K: 0.762 | 43.8middle or higher | stablePP difference 4.3% | 283.392 km4,798 vertices · 1 part · 0 holes |
| IN · State House District 43GEOID 18043 · effective 2024-01-01 | State legislative lower chamber | 0.295500K: 0.298 | 0.673500K: 0.673 | 39.2middle or higher | stablePP difference 1.0% | 105.434 km1,369 vertices · 1 part · 0 holes |
| UT · State House District 43GEOID 49043 · effective 2024-01-01 | State legislative lower chamber | 0.295500K: 0.301 | 0.653500K: 0.653 | 39.2middle or higher | stablePP difference 2.0% | 33.535 km1,114 vertices · 1 part · 0 holes |
| RI · State House District 5GEOID 44005 · effective 2024-01-01 | State legislative lower chamber | 0.295500K: 0.305 | 0.668500K: 0.665 | 39.2middle or higher | stablePP difference 3.1% | 12.153 km290 vertices · 1 part · 0 holes |
| NM · State House District 57GEOID 35057 · effective 2024-01-01 | State legislative lower chamber | 0.295500K: 0.314 | 0.718500K: 0.719 | 39.2middle or higher | stablePP difference 6.2% | 148.91 km4,005 vertices · 1 part · 0 holes |
| NM · State House District 26GEOID 35026 · effective 2024-01-01 | State legislative lower chamber | 0.295500K: 0.302 | 0.682500K: 0.682 | 39.3middle or higher | stablePP difference 2.3% | 88.43 km1,004 vertices · 1 part · 0 holes |
| RI · State Senate District 4GEOID 44004 · effective 2024-01-01 | State legislative upper chamber | 0.295500K: 0.311 | 0.762500K: 0.762 | 43.9middle or higher | stablePP difference 5.3% | 22.973 km583 vertices · 1 part · 0 holes |
| NV · Assembly District 37GEOID 32037 · effective 2024-01-01 | State legislative lower chamber | 0.295500K: 0.296 | 0.698500K: 0.698 | 39.3middle or higher | stablePP difference 0.3% | 39.801 km921 vertices · 1 part · 0 holes |
| MI · State Senate District 26GEOID 26026 · effective 2024-01-01 | State legislative upper chamber | 0.295500K: 0.303 | 0.699500K: 0.698 | 43.9middle or higher | stablePP difference 2.5% | 432.66 km2,319 vertices · 1 part · 0 holes |
| LA · State House District 47GEOID 22047 · effective 2024-01-01 | State legislative lower chamber | 0.295500K: 0.221 | 0.747500K: 0.713 | 39.3middle or higher | resolution sensitivePP difference 25.2% | 616.543 km3,004 vertices · 1 part · 0 holes |
| WA · Legislative (Senate) District 22GEOID 53022 · effective 2024-01-01 | State legislative upper chamber | 0.295500K: 0.221 | 0.807500K: 0.755 | 44.0middle or higher | resolution sensitivePP difference 25.0% | 121.378 km1,869 vertices · 1 part · 0 holes |
| WA · Legislative (House) District 22GEOID 53022 · effective 2024-01-01 | State legislative lower chamber | 0.295500K: 0.221 | 0.807500K: 0.755 | 39.3middle or higher | resolution sensitivePP difference 25.0% | 121.378 km1,869 vertices · 1 part · 0 holes |
| LA · State House District 18GEOID 22018 · effective 2024-01-01 | State legislative lower chamber | 0.295500K: 0.298 | 0.769500K: 0.769 | 39.4middle or higher | stablePP difference 0.8% | 380.227 km5,058 vertices · 1 part · 0 holes |
| KY · State House District 28GEOID 21028 · effective 2024-01-01 | State legislative lower chamber | 0.295500K: 0.308 | 0.676500K: 0.677 | 39.4middle or higher | stablePP difference 4.2% | 45.753 km918 vertices · 1 part · 0 holes |
| CA · Congressional District 37GEOID 0637 · effective 2024-01-01 | U.S. House | 0.295500K: 0.305 | 0.775500K: 0.776 | 63.0middle or higher | stablePP difference 3.3% | 76.317 km1,323 vertices · 1 part · 0 holes |
| TX · State House District 19GEOID 48019 · effective 2024-01-01 | State legislative lower chamber | 0.295500K: 0.298 | 0.693500K: 0.693 | 39.4middle or higher | stablePP difference 0.7% | 639.414 km4,979 vertices · 1 part · 0 holes |
| AL · State House District 4GEOID 01004 · effective 2024-01-01 | State legislative lower chamber | 0.295500K: 0.307 | 0.720500K: 0.721 | 39.4middle or higher | stablePP difference 3.9% | 138.738 km3,274 vertices · 1 part · 0 holes |
| ME · State House District 135GEOID 23135 · effective 2024-01-01 | State legislative lower chamber | 0.295500K: 0.357 | 0.749500K: 0.751 | 39.4middle or higher | stablePP difference 17.1% | 58.211 km2,048 vertices · 1 part · 0 holes |
| CT · State House District 8GEOID 09008 · effective 2024-01-01 | State legislative lower chamber | 0.295500K: 0.302 | 0.630500K: 0.630 | 39.5middle or higher | stablePP difference 2.2% | 99.453 km1,729 vertices · 1 part · 0 holes |
| NM · State Senate District 26GEOID 35026 · effective 2024-01-01 | State legislative upper chamber | 0.296500K: 0.304 | 0.655500K: 0.654 | 44.0middle or higher | stablePP difference 2.9% | 34.847 km593 vertices · 1 part · 0 holes |
| AL · State House District 40GEOID 01040 · effective 2024-01-01 | State legislative lower chamber | 0.296500K: 0.302 | 0.778500K: 0.778 | 39.5middle or higher | stablePP difference 2.1% | 283.466 km3,125 vertices · 1 part · 0 holes |
| NV · Assembly District 25GEOID 32025 · effective 2024-01-01 | State legislative lower chamber | 0.296500K: 0.310 | 0.691500K: 0.693 | 39.5middle or higher | stablePP difference 4.5% | 58.759 km1,146 vertices · 1 part · 0 holes |
| GA · State House District 132GEOID 13132 · effective 2024-01-01 | State legislative lower chamber | 0.296500K: 0.311 | 0.751500K: 0.751 | 39.5middle or higher | stablePP difference 4.8% | 264.446 km4,409 vertices · 1 part · 0 holes |
| MA · Hampshire-Franklin-Worcester DistrictGEOID 25D05 · effective 2024-01-01 | State legislative upper chamber | 0.296500K: 0.305 | 0.789500K: 0.789 | 44.1middle or higher | stablePP difference 2.9% | 293.292 km3,800 vertices · 1 part · 0 holes |
| CO · State House District 60GEOID 08060 · effective 2024-01-01 | State legislative lower chamber | 0.296500K: 0.299 | 0.695500K: 0.695 | 39.5middle or higher | stablePP difference 1.0% | 586.35 km3,919 vertices · 1 part · 0 holes |
| OH · State Senate District 30GEOID 39030 · effective 2024-01-01 | State legislative upper chamber | 0.296500K: 0.302 | 0.772500K: 0.772 | 44.1middle or higher | stablePP difference 2.0% | 704.256 km7,979 vertices · 1 part · 0 holes |
| IN · State House District 62GEOID 18062 · effective 2024-01-01 | State legislative lower chamber | 0.296500K: 0.299 | 0.767500K: 0.767 | 39.5middle or higher | stablePP difference 1.2% | 276.445 km3,649 vertices · 1 part · 0 holes |
| MN · State House District 4BGEOID 2704B · effective 2024-01-01 | State legislative lower chamber | 0.296500K: 0.306 | 0.815500K: 0.815 | 39.6middle or higher | stablePP difference 3.4% | 381.473 km3,599 vertices · 1 part · 0 holes |
| TN · State Senate District 26GEOID 47026 · effective 2024-01-01 | State legislative upper chamber | 0.296500K: 0.304 | 0.782500K: 0.782 | 44.2middle or higher | stablePP difference 2.6% | 719.608 km9,117 vertices · 1 part · 0 holes |
| MA · Second Middlesex DistrictGEOID 25D27 · effective 2024-01-01 | State legislative upper chamber | 0.296500K: 0.312 | 0.719500K: 0.718 | 44.3middle or higher | stablePP difference 5.1% | 44.67 km1,253 vertices · 1 part · 0 holes |
| MO · State House District 62GEOID 29062 · effective 2024-01-01 | State legislative lower chamber | 0.296500K: 0.299 | 0.825500K: 0.825 | 39.6middle or higher | stablePP difference 1.1% | 287.363 km2,314 vertices · 1 part · 0 holes |
| SC · State House District 33GEOID 45033 · effective 2024-01-01 | State legislative lower chamber | 0.296500K: 0.303 | 0.829500K: 0.830 | 39.6middle or higher | stablePP difference 2.2% | 165.628 km4,514 vertices · 1 part · 0 holes |
| IL · State House District 90GEOID 17090 · effective 2024-01-01 | State legislative lower chamber | 0.296500K: 0.298 | 0.727500K: 0.727 | 39.6middle or higher | stablePP difference 0.4% | 244.669 km2,134 vertices · 1 part · 0 holes |
| NY · Assembly District 73GEOID 36073 · effective 2024-01-01 | State legislative lower chamber | 0.296500K: 0.306 | 0.757500K: 0.756 | 39.7middle or higher | stablePP difference 3.1% | 13.445 km201 vertices · 1 part · 0 holes |
| TN · State House District 69GEOID 47069 · effective 2024-01-01 | State legislative lower chamber | 0.296500K: 0.303 | 0.805500K: 0.805 | 39.7middle or higher | stablePP difference 2.2% | 361.676 km5,820 vertices · 1 part · 0 holes |
| NY · Assembly District 109GEOID 36109 · effective 2024-01-01 | State legislative lower chamber | 0.296500K: 0.306 | 0.693500K: 0.693 | 39.7middle or higher | stablePP difference 3.2% | 116.759 km1,494 vertices · 1 part · 0 holes |
| IN · State Senate District 39GEOID 18039 · effective 2024-01-01 | State legislative upper chamber | 0.296500K: 0.299 | 0.765500K: 0.765 | 44.3middle or higher | stablePP difference 1.0% | 515.852 km4,850 vertices · 1 part · 0 holes |
| ID · State Senate District 30GEOID 16030 · effective 2024-01-01 | State legislative upper chamber | 0.296500K: 0.309 | 0.667500K: 0.667 | 44.4middle or higher | stablePP difference 4.2% | 691.227 km8,273 vertices · 1 part · 0 holes |
| ID · State House District 30GEOID 16030 · effective 2024-01-01 | State legislative lower chamber | 0.296500K: 0.309 | 0.667500K: 0.667 | 39.7middle or higher | stablePP difference 4.2% | 691.227 km8,273 vertices · 1 part · 0 holes |
| TX · State House District 122GEOID 48122 · effective 2024-01-01 | State legislative lower chamber | 0.296500K: 0.304 | 0.798500K: 0.798 | 39.7middle or higher | stablePP difference 2.4% | 163.599 km2,967 vertices · 1 part · 0 holes |
| MD · State Legislative Subdistrict 11BGEOID 2411B · effective 2024-01-01 | State legislative lower chamber | 0.297500K: 0.308 | 0.795500K: 0.796 | 39.8middle or higher | stablePP difference 3.8% | 74.266 km2,066 vertices · 1 part · 0 holes |
| NV · Assembly District 1GEOID 32001 · effective 2024-01-01 | State legislative lower chamber | 0.297500K: 0.298 | 0.721500K: 0.722 | 39.8middle or higher | stablePP difference 0.4% | 41.279 km523 vertices · 1 part · 0 holes |
| MA · 6th Worcester DistrictGEOID 25147 · effective 2024-01-01 | State legislative lower chamber | 0.297500K: 0.301 | 0.781500K: 0.781 | 39.8middle or higher | stablePP difference 1.4% | 96.177 km1,551 vertices · 1 part · 0 holes |
| RI · State House District 1GEOID 44001 · effective 2024-01-01 | State legislative lower chamber | 0.297500K: 0.327 | 0.721500K: 0.732 | 39.8middle or higher | stablePP difference 9.4% | 11.87 km316 vertices · 1 part · 0 holes |
| VT · Chittenden-19 State House DistrictGEOID 50C19 · effective 2024-01-01 | State legislative lower chamber | 0.297500K: 0.302 | 0.706500K: 0.706 | 39.8middle or higher | stablePP difference 1.7% | 58.81 km1,045 vertices · 1 part · 0 holes |
| NC · State House District 77GEOID 37077 · effective 2024-01-01 | State legislative lower chamber | 0.297500K: 0.299 | 0.725500K: 0.725 | 39.9middle or higher | stablePP difference 0.6% | 285.474 km5,766 vertices · 1 part · 0 holes |
| GA · State House District 24GEOID 13024 · effective 2024-01-01 | State legislative lower chamber | 0.297500K: 0.303 | 0.791500K: 0.792 | 39.9middle or higher | stablePP difference 2.0% | 67.072 km1,472 vertices · 1 part · 0 holes |
| NC · State House District 74GEOID 37074 · effective 2024-01-01 | State legislative lower chamber | 0.297500K: 0.302 | 0.702500K: 0.702 | 39.9middle or higher | stablePP difference 1.6% | 120.14 km3,333 vertices · 1 part · 0 holes |
| IA · State House District 95GEOID 19095 · effective 2024-01-01 | State legislative lower chamber | 0.297500K: 0.300 | 0.780500K: 0.781 | 39.9middle or higher | stablePP difference 1.0% | 370.062 km2,869 vertices · 1 part · 0 holes |
| PA · State House District 10GEOID 42010 · effective 2024-01-01 | State legislative lower chamber | 0.297500K: 0.303 | 0.711500K: 0.712 | 39.9middle or higher | stablePP difference 2.1% | 18.117 km254 vertices · 1 part · 0 holes |
| WV · Delegate District 15GEOID 54015 · effective 2024-01-01 | State legislative lower chamber | 0.297500K: 0.307 | 0.758500K: 0.758 | 40.0middle or higher | stablePP difference 3.2% | 269.979 km5,120 vertices · 1 part · 0 holes |
| NE · State Senate District 43GEOID 31043 · effective 2024-01-01 | State legislative upper chamber | 0.297500K: 0.298 | 0.684500K: 0.684 | 44.4middle or higher | stablePP difference 0.1% | 1,397.546 km5,357 vertices · 1 part · 0 holes |
| UT · State Senate District 15GEOID 49015 · effective 2024-01-01 | State legislative upper chamber | 0.297500K: 0.310 | 0.751500K: 0.751 | 44.5middle or higher | stablePP difference 4.1% | 115.491 km2,976 vertices · 1 part · 0 holes |
| AR · State House District 26GEOID 05026 · effective 2024-01-01 | State legislative lower chamber | 0.298500K: 0.299 | 0.766500K: 0.766 | 40.0middle or higher | stablePP difference 0.4% | 386.206 km3,393 vertices · 1 part · 0 holes |
| GA · State House District 152GEOID 13152 · effective 2024-01-01 | State legislative lower chamber | 0.298500K: 0.306 | 0.808500K: 0.808 | 40.0middle or higher | stablePP difference 2.7% | 331.782 km3,548 vertices · 2 parts · 0 holes |
| PA · State House District 106GEOID 42106 · effective 2024-01-01 | State legislative lower chamber | 0.298500K: 0.308 | 0.741500K: 0.742 | 40.0middle or higher | stablePP difference 3.4% | 121.791 km1,817 vertices · 1 part · 0 holes |
How the measures work
Two measures, one stability guard.
- Polsby–Popper
- 4π × area ÷ perimeter². A circle approaches 1. Coastline and boundary detail can sharply increase perimeter.
- Convex-hull ratio
- District area divided by its local equal-area convex hull. Disconnected or deeply concave shapes score lower.
- Resolution guard
- Detailed and 1:500,000 values are labeled stable only when their relative differences stay within 20% and 10%, respectively.
Election-result boundary
Outcome relationships are not calculated yet.
The repository does not yet contain a nationwide certified, same-plan-vintage district result set. Compactness is not joined to election outcomes across mismatched plans or geography.
That guard prevents district results from being compared against a different plan vintage or geography.
Source provenance
U.S. Census Bureau TIGERweb
Six retained and hash-pinned GeoJSON collections cover detailed and generalized versions of each district type.
- congressional · detailed 444 source features
- congressional · generalized 500k 441 source features
- state upper · detailed 1,964 source features
- state upper · generalized 500k 1,960 source features
- state lower · detailed 4,879 source features
- state lower · generalized 500k 4,874 source features