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 201–300 of 7,272
| District | Type | Polsby–Popper | Convex hull | Relative percentile | Resolution check | Boundary detail |
|---|---|---|---|---|---|---|
| IL · State Senate District 30GEOID 17030 · effective 2024-01-01 | State legislative upper chamber | 0.120500K: 0.132 | 0.480500K: 0.484 | 2.9lower decile | stablePP difference 9.0% | 140.798 km2,891 vertices · 1 part · 0 holes |
| NY · Assembly District 77GEOID 36077 · effective 2024-01-01 | State legislative lower chamber | 0.120500K: 0.123 | 0.618500K: 0.619 | 2.1lower decile | stablePP difference 1.9% | 21.163 km307 vertices · 1 part · 0 holes |
| TX · State Senate District 13GEOID 48013 · effective 2024-01-01 | State legislative upper chamber | 0.120500K: 0.122 | 0.511500K: 0.511 | 3.0lower decile | stablePP difference 1.7% | 255.943 km4,263 vertices · 1 part · 0 holes |
| CA · Assembly District 54GEOID 06054 · effective 2024-01-01 | State legislative lower chamber | 0.121500K: 0.125 | 0.539500K: 0.539 | 2.2lower decile | stablePP difference 3.6% | 105.109 km2,064 vertices · 1 part · 0 holes |
| GA · State House District 67GEOID 13067 · effective 2024-01-01 | State legislative lower chamber | 0.121500K: 0.129 | 0.610500K: 0.611 | 2.2lower decile | stablePP difference 6.2% | 140.949 km3,382 vertices · 1 part · 0 holes |
| TX · State House District 70GEOID 48070 · effective 2024-01-01 | State legislative lower chamber | 0.121500K: 0.122 | 0.516500K: 0.516 | 2.2lower decile | stablePP difference 0.7% | 99.301 km1,591 vertices · 1 part · 0 holes |
| GA · State House District 61GEOID 13061 · effective 2024-01-01 | State legislative lower chamber | 0.121500K: 0.128 | 0.481500K: 0.481 | 2.2lower decile | stablePP difference 5.5% | 99.839 km3,059 vertices · 1 part · 0 holes |
| IA · State Senate District 20GEOID 19020 · effective 2024-01-01 | State legislative upper chamber | 0.121500K: 0.128 | 0.726500K: 0.726 | 3.0lower decile | stablePP difference 5.5% | 126.091 km1,662 vertices · 1 part · 0 holes |
| TN · Congressional District 9GEOID 4709 · effective 2024-01-01 | U.S. House | 0.121500K: 0.124 | 0.620500K: 0.620 | 8.9lower decile | stablePP difference 2.2% | 466.508 km10,279 vertices · 1 part · 0 holes |
| CA · Assembly District 76GEOID 06076 · effective 2024-01-01 | State legislative lower chamber | 0.121500K: 0.134 | 0.658500K: 0.658 | 2.2lower decile | stablePP difference 9.5% | 239.482 km5,426 vertices · 1 part · 0 holes |
| SC · State House District 23GEOID 45023 · effective 2024-01-01 | State legislative lower chamber | 0.121500K: 0.126 | 0.523500K: 0.524 | 2.3lower decile | stablePP difference 4.1% | 64.571 km1,575 vertices · 1 part · 0 holes |
| NM · State House District 65GEOID 35065 · effective 2024-01-01 | State legislative lower chamber | 0.121500K: 0.125 | 0.539500K: 0.539 | 2.3lower decile | stablePP difference 3.2% | 1,194.637 km20,563 vertices · 1 part · 0 holes |
| AL · State Senate District 11GEOID 01011 · effective 2024-01-01 | State legislative upper chamber | 0.121500K: 0.126 | 0.564500K: 0.564 | 3.1lower decile | stablePP difference 4.1% | 516.61 km12,255 vertices · 1 part · 0 holes |
| AL · State House District 78GEOID 01078 · effective 2024-01-01 | State legislative lower chamber | 0.121500K: 0.125 | 0.556500K: 0.556 | 2.3lower decile | stablePP difference 2.8% | 172.497 km2,789 vertices · 1 part · 0 holes |
| AR · Congressional District 1GEOID 0501 · effective 2024-01-01 | U.S. House | 0.121500K: 0.125 | 0.683500K: 0.683 | 9.1lower decile | stablePP difference 2.5% | 2,337.781 km39,424 vertices · 1 part · 0 holes |
| CA · State Senate District 34GEOID 06034 · effective 2024-01-01 | State legislative upper chamber | 0.122500K: 0.127 | 0.611500K: 0.611 | 3.1lower decile | stablePP difference 4.0% | 160.954 km3,853 vertices · 1 part · 0 holes |
| WV · Delegate District 56GEOID 54056 · effective 2024-01-01 | State legislative lower chamber | 0.122500K: 0.131 | 0.580500K: 0.580 | 2.3lower decile | stablePP difference 7.4% | 87.324 km3,558 vertices · 1 part · 0 holes |
| TN · State House District 54GEOID 47054 · effective 2024-01-01 | State legislative lower chamber | 0.122500K: 0.126 | 0.593500K: 0.593 | 2.3lower decile | stablePP difference 3.1% | 128.473 km3,027 vertices · 1 part · 0 holes |
| TX · State Senate District 5GEOID 48005 · effective 2024-01-01 | State legislative upper chamber | 0.122500K: 0.125 | 0.541500K: 0.541 | 3.2lower decile | stablePP difference 2.2% | 1,566.449 km17,839 vertices · 1 part · 0 holes |
| TN · State Senate District 14GEOID 47014 · effective 2024-01-01 | State legislative upper chamber | 0.122500K: 0.125 | 0.603500K: 0.603 | 3.2lower decile | stablePP difference 2.2% | 550.632 km8,517 vertices · 1 part · 0 holes |
| TX · State House District 145GEOID 48145 · effective 2024-01-01 | State legislative lower chamber | 0.123500K: 0.127 | 0.473500K: 0.473 | 2.4lower decile | stablePP difference 3.4% | 98.852 km1,536 vertices · 1 part · 0 holes |
| AL · State Senate District 22GEOID 01022 · effective 2024-01-01 | State legislative upper chamber | 0.123500K: 0.131 | 0.540500K: 0.540 | 3.3lower decile | stablePP difference 6.3% | 937.739 km11,650 vertices · 1 part · 0 holes |
| LA · State Senate District 17GEOID 22017 · effective 2024-01-01 | State legislative upper chamber | 0.123500K: 0.125 | 0.584500K: 0.584 | 3.3lower decile | stablePP difference 1.9% | 837.317 km10,161 vertices · 2 parts · 0 holes |
| MD · State Legislative Subdistrict 42BGEOID 2442B · effective 2024-01-01 | State legislative lower chamber | 0.123500K: 0.129 | 0.490500K: 0.491 | 2.4lower decile | stablePP difference 4.4% | 63.217 km1,889 vertices · 1 part · 0 holes |
| SD · State Senate District 33GEOID 46033 · effective 2024-01-01 | State legislative upper chamber | 0.123500K: 0.129 | 0.656500K: 0.656 | 3.4lower decile | stablePP difference 4.4% | 204.405 km4,485 vertices · 1 part · 0 holes |
| SD · State House District 33GEOID 46033 · effective 2024-01-01 | State legislative lower chamber | 0.123500K: 0.129 | 0.656500K: 0.656 | 2.4lower decile | stablePP difference 4.4% | 204.405 km4,485 vertices · 1 part · 0 holes |
| MO · State Senate District 30GEOID 29030 · effective 2024-01-01 | State legislative upper chamber | 0.123500K: 0.130 | 0.693500K: 0.693 | 3.4lower decile | stablePP difference 5.3% | 156.211 km3,518 vertices · 1 part · 0 holes |
| CA · State Senate District 32GEOID 06032 · effective 2024-01-01 | State legislative upper chamber | 0.124500K: 0.126 | 0.705500K: 0.706 | 3.5lower decile | stablePP difference 2.2% | 915.745 km14,307 vertices · 1 part · 0 holes |
| FL · State House District 88GEOID 12088 · effective 2024-01-01 | State legislative lower chamber | 0.124500K: 0.126 | 0.569500K: 0.569 | 2.4lower decile | stablePP difference 2.1% | 109.138 km1,258 vertices · 1 part · 0 holes |
| ME · State House District 72GEOID 23072 · effective 2024-01-01 | State legislative lower chamber | 0.124500K: 0.136 | 0.567500K: 0.567 | 2.4lower decile | stablePP difference 8.5% | 798.211 km36,629 vertices · 1 part · 0 holes |
| CA · State Senate District 37GEOID 06037 · effective 2024-01-01 | State legislative upper chamber | 0.124500K: 0.131 | 0.618500K: 0.619 | 3.5lower decile | stablePP difference 5.3% | 314.473 km6,586 vertices · 1 part · 0 holes |
| NY · Assembly District 51GEOID 36051 · effective 2024-01-01 | State legislative lower chamber | 0.124500K: 0.314 | 0.702500K: 0.697 | 2.5lower decile | resolution sensitivePP difference 60.4% | 34.694 km508 vertices · 1 part · 0 holes |
| CA · Assembly District 79GEOID 06079 · effective 2024-01-01 | State legislative lower chamber | 0.124500K: 0.145 | 0.717500K: 0.717 | 2.5lower decile | stablePP difference 14.2% | 126.118 km3,860 vertices · 1 part · 0 holes |
| PR · State House District 20GEOID 72020 · effective 2024-01-01 | State legislative lower chamber | 0.124500K: 0.170 | 0.587500K: 0.588 | 2.5lower decile | resolution sensitivePP difference 26.8% | 171.412 km6,827 vertices · 9 parts · 0 holes |
| CO · State House District 28GEOID 08028 · effective 2024-01-01 | State legislative lower chamber | 0.125500K: 0.129 | 0.627500K: 0.628 | 2.5lower decile | stablePP difference 3.5% | 86.816 km1,370 vertices · 1 part · 0 holes |
| TX · Congressional District 38GEOID 4838 · effective 2024-01-01 | U.S. House | 0.125500K: 0.130 | 0.587500K: 0.588 | 9.3lower decile | stablePP difference 4.4% | 284.912 km6,021 vertices · 1 part · 0 holes |
| RI · State Senate District 18GEOID 44018 · effective 2024-01-01 | State legislative upper chamber | 0.125500K: 0.123 | 0.457500K: 0.447 | 3.6lower decile | stablePP difference 1.4% | 47.354 km1,241 vertices · 1 part · 0 holes |
| CA · Assembly District 63GEOID 06063 · effective 2024-01-01 | State legislative lower chamber | 0.125500K: 0.127 | 0.604500K: 0.604 | 2.5lower decile | stablePP difference 1.7% | 308.749 km4,798 vertices · 1 part · 0 holes |
| MD · State Senate District 21GEOID 24021 · effective 2024-01-01 | State legislative upper chamber | 0.125500K: 0.132 | 0.505500K: 0.505 | 3.6lower decile | stablePP difference 5.5% | 133.316 km3,666 vertices · 1 part · 0 holes |
| MD · State Legislative District 21GEOID 24021 · effective 2024-01-01 | State legislative lower chamber | 0.125500K: 0.132 | 0.505500K: 0.505 | 2.6lower decile | stablePP difference 5.5% | 133.316 km3,666 vertices · 1 part · 0 holes |
| MO · State House District 119GEOID 29119 · effective 2024-01-01 | State legislative lower chamber | 0.125500K: 0.131 | 0.605500K: 0.606 | 2.6lower decile | stablePP difference 4.5% | 180.864 km4,243 vertices · 1 part · 0 holes |
| OH · State House District 37GEOID 39037 · effective 2024-01-01 | State legislative lower chamber | 0.125500K: 0.132 | 0.755500K: 0.755 | 2.6lower decile | stablePP difference 5.2% | 160.429 km1,980 vertices · 1 part · 0 holes |
| TX · State House District 11GEOID 48011 · effective 2024-01-01 | State legislative lower chamber | 0.125500K: 0.142 | 0.629500K: 0.629 | 2.6lower decile | stablePP difference 11.9% | 1,151.244 km19,682 vertices · 1 part · 0 holes |
| IL · State House District 33GEOID 17033 · effective 2024-01-01 | State legislative lower chamber | 0.125500K: 0.126 | 0.495500K: 0.495 | 2.6lower decile | stablePP difference 0.7% | 75.744 km1,774 vertices · 1 part · 0 holes |
| LA · State Senate District 3GEOID 22003 · effective 2024-01-01 | State legislative upper chamber | 0.125500K: 0.130 | 0.607500K: 0.608 | 3.7lower decile | stablePP difference 3.6% | 140.863 km2,876 vertices · 1 part · 0 holes |
| TN · State Senate District 30GEOID 47030 · effective 2024-01-01 | State legislative upper chamber | 0.125500K: 0.128 | 0.511500K: 0.512 | 3.7lower decile | stablePP difference 2.0% | 142.929 km3,675 vertices · 1 part · 0 holes |
| TX · State House District 139GEOID 48139 · effective 2024-01-01 | State legislative lower chamber | 0.125500K: 0.128 | 0.547500K: 0.547 | 2.7lower decile | stablePP difference 2.0% | 107.404 km2,052 vertices · 1 part · 0 holes |
| CA · State Senate District 38GEOID 06038 · effective 2024-01-01 | State legislative upper chamber | 0.125500K: 0.112 | 0.603500K: 0.528 | 3.8lower decile | resolution sensitivePP difference 10.5% | 447.018 km7,772 vertices · 1 part · 0 holes |
| TX · State Senate District 17GEOID 48017 · effective 2024-01-01 | State legislative upper chamber | 0.126500K: 0.123 | 0.710500K: 0.715 | 3.8lower decile | stablePP difference 1.8% | 1,305.917 km16,027 vertices · 1 part · 0 holes |
| MS · State House District 108GEOID 28108 · effective 2024-01-01 | State legislative lower chamber | 0.126500K: 0.163 | 0.660500K: 0.663 | 2.7lower decile | resolution sensitivePP difference 22.7% | 187.89 km3,395 vertices · 1 part · 0 holes |
| NC · State Senate District 47GEOID 37047 · effective 2024-01-01 | State legislative upper chamber | 0.126500K: 0.133 | 0.549500K: 0.549 | 3.9lower decile | stablePP difference 5.1% | 836.084 km24,205 vertices · 1 part · 0 holes |
| MO · State House District 50GEOID 29050 · effective 2024-01-01 | State legislative lower chamber | 0.126500K: 0.134 | 0.637500K: 0.636 | 2.7lower decile | stablePP difference 5.8% | 81.765 km1,979 vertices · 1 part · 0 holes |
| TX · State House District 43GEOID 48043 · effective 2024-01-01 | State legislative lower chamber | 0.126500K: 0.077 | 0.581500K: 0.545 | 2.7lower decile | resolution sensitivePP difference 38.8% | 1,180.105 km15,758 vertices · 1 part · 0 holes |
| IL · Congressional District 15GEOID 1715 · effective 2024-01-01 | U.S. House | 0.127500K: 0.127 | 0.644500K: 0.644 | 9.6lower decile | stablePP difference 0.5% | 2,089.002 km17,231 vertices · 1 part · 0 holes |
| MD · State Senate District 47GEOID 24047 · effective 2024-01-01 | State legislative upper chamber | 0.127500K: 0.131 | 0.473500K: 0.473 | 3.9lower decile | stablePP difference 3.3% | 69.287 km2,074 vertices · 1 part · 0 holes |
| IL · State House District 21GEOID 17021 · effective 2024-01-01 | State legislative lower chamber | 0.127500K: 0.128 | 0.516500K: 0.516 | 2.8lower decile | stablePP difference 1.0% | 68.815 km2,324 vertices · 1 part · 0 holes |
| KY · State House District 69GEOID 21069 · effective 2024-01-01 | State legislative lower chamber | 0.127500K: 0.137 | 0.580500K: 0.580 | 2.8lower decile | stablePP difference 7.3% | 63.488 km1,556 vertices · 1 part · 0 holes |
| TX · State Senate District 27GEOID 48027 · effective 2024-01-01 | State legislative upper chamber | 0.127500K: 0.052 | 0.666500K: 0.585 | 4.0lower decile | resolution sensitivePP difference 59.4% | 1,429.2 km21,282 vertices · 1 part · 0 holes |
| IL · Congressional District 7GEOID 1707 · effective 2024-01-01 | U.S. House | 0.127500K: 0.137 | 0.504500K: 0.504 | 9.8lower decile | stablePP difference 6.6% | 132.887 km4,044 vertices · 1 part · 0 holes |
| GA · State House District 37GEOID 13037 · effective 2024-01-01 | State legislative lower chamber | 0.128500K: 0.138 | 0.586500K: 0.587 | 2.8lower decile | stablePP difference 7.7% | 76.038 km1,988 vertices · 1 part · 0 holes |
| LA · State House District 32GEOID 22032 · effective 2024-01-01 | State legislative lower chamber | 0.128500K: 0.145 | 0.602500K: 0.602 | 2.8lower decile | stablePP difference 11.6% | 622.347 km7,325 vertices · 1 part · 0 holes |
| PA · State House District 49GEOID 42049 · effective 2024-01-01 | State legislative lower chamber | 0.128500K: 0.142 | 0.620500K: 0.620 | 2.8lower decile | stablePP difference 10.0% | 53.769 km1,521 vertices · 1 part · 1 hole |
| TX · State House District 131GEOID 48131 · effective 2024-01-01 | State legislative lower chamber | 0.128500K: 0.131 | 0.590500K: 0.590 | 2.9lower decile | stablePP difference 2.5% | 114.371 km2,281 vertices · 1 part · 0 holes |
| MS · Congressional District 2GEOID 2802 · effective 2024-01-01 | U.S. House | 0.128500K: 0.130 | 0.734500K: 0.734 | 10.0lower quartile | stablePP difference 1.1% | 2,162.905 km30,179 vertices · 1 part · 0 holes |
| GA · State House District 94GEOID 13094 · effective 2024-01-01 | State legislative lower chamber | 0.128500K: 0.134 | 0.554500K: 0.554 | 2.9lower decile | stablePP difference 4.2% | 86.713 km2,185 vertices · 1 part · 0 holes |
| KY · State House District 67GEOID 21067 · effective 2024-01-01 | State legislative lower chamber | 0.129500K: 0.134 | 0.507500K: 0.507 | 2.9lower decile | stablePP difference 3.8% | 72.183 km1,762 vertices · 1 part · 0 holes |
| MA · Congressional District 8GEOID 2508 · effective 2024-01-01 | U.S. House | 0.129500K: 0.091 | 0.606500K: 0.628 | 10.2lower quartile | resolution sensitivePP difference 29.6% | 340.801 km4,546 vertices · 1 part · 0 holes |
| OH · State House District 39GEOID 39039 · effective 2024-01-01 | State legislative lower chamber | 0.129500K: 0.140 | 0.735500K: 0.735 | 2.9lower decile | stablePP difference 8.1% | 143.48 km1,715 vertices · 1 part · 0 holes |
| TX · Congressional District 20GEOID 4820 · effective 2024-01-01 | U.S. House | 0.129500K: 0.131 | 0.633500K: 0.633 | 10.4lower quartile | stablePP difference 1.5% | 213.061 km2,874 vertices · 1 part · 0 holes |
| WV · Congressional District 2GEOID 5402 · effective 2024-01-01 | U.S. House | 0.129500K: 0.134 | 0.501500K: 0.501 | 10.7lower quartile | stablePP difference 3.2% | 1,568.556 km26,599 vertices · 1 part · 0 holes |
| IL · Congressional District 1GEOID 1701 · effective 2024-01-01 | U.S. House | 0.130500K: 0.133 | 0.571500K: 0.571 | 10.9lower quartile | stablePP difference 2.4% | 394.719 km7,379 vertices · 1 part · 0 holes |
| CO · State Senate District 25GEOID 08025 · effective 2024-01-01 | State legislative upper chamber | 0.130500K: 0.135 | 0.545500K: 0.545 | 4.0lower decile | stablePP difference 3.5% | 117.494 km1,839 vertices · 1 part · 0 holes |
| OH · State House District 19GEOID 39019 · effective 2024-01-01 | State legislative lower chamber | 0.130500K: 0.133 | 0.473500K: 0.473 | 2.9lower decile | stablePP difference 2.5% | 171.083 km1,703 vertices · 1 part · 0 holes |
| AL · State House District 30GEOID 01030 · effective 2024-01-01 | State legislative lower chamber | 0.130500K: 0.139 | 0.662500K: 0.662 | 3.0lower decile | stablePP difference 6.0% | 343.311 km7,069 vertices · 1 part · 0 holes |
| TN · State House District 88GEOID 47088 · effective 2024-01-01 | State legislative lower chamber | 0.130500K: 0.133 | 0.460500K: 0.460 | 3.0lower decile | stablePP difference 1.6% | 93.889 km2,717 vertices · 1 part · 0 holes |
| GA · Congressional District 13GEOID 1313 · effective 2024-01-01 | U.S. House | 0.131500K: 0.136 | 0.563500K: 0.563 | 11.1lower quartile | stablePP difference 3.9% | 367.434 km10,109 vertices · 1 part · 0 holes |
| LA · State House District 86GEOID 22086 · effective 2024-01-01 | State legislative lower chamber | 0.131500K: 0.137 | 0.675500K: 0.675 | 3.0lower decile | stablePP difference 4.6% | 247.061 km7,340 vertices · 1 part · 0 holes |
| PR · State Senate District 4GEOID 72004 · effective 2024-01-01 | State legislative upper chamber | 0.131500K: 0.182 | 0.332500K: 0.299 | 4.1lower decile | resolution sensitivePP difference 28.2% | 413.695 km11,132 vertices · 11 parts · 0 holes |
| TN · Congressional District 5GEOID 4705 · effective 2024-01-01 | U.S. House | 0.131500K: 0.135 | 0.565500K: 0.565 | 11.4lower quartile | stablePP difference 2.6% | 717.184 km12,569 vertices · 1 part · 0 holes |
| MS · State House District 68GEOID 28068 · effective 2024-01-01 | State legislative lower chamber | 0.132500K: 0.138 | 0.575500K: 0.576 | 3.0lower decile | stablePP difference 4.7% | 103.888 km2,432 vertices · 1 part · 0 holes |
| TX · State House District 62GEOID 48062 · effective 2024-01-01 | State legislative lower chamber | 0.132500K: 0.146 | 0.537500K: 0.537 | 3.0lower decile | stablePP difference 9.6% | 778.671 km15,244 vertices · 1 part · 0 holes |
| IL · State House District 25GEOID 17025 · effective 2024-01-01 | State legislative lower chamber | 0.132500K: 0.130 | 0.482500K: 0.505 | 3.1lower decile | stablePP difference 1.2% | 51.548 km1,454 vertices · 1 part · 0 holes |
| MD · State Senate District 23GEOID 24023 · effective 2024-01-01 | State legislative upper chamber | 0.132500K: 0.143 | 0.549500K: 0.550 | 4.1lower decile | stablePP difference 8.0% | 167.545 km5,865 vertices · 1 part · 0 holes |
| MD · State Legislative District 23GEOID 24023 · effective 2024-01-01 | State legislative lower chamber | 0.132500K: 0.143 | 0.549500K: 0.550 | 3.1lower decile | stablePP difference 8.0% | 167.545 km5,865 vertices · 1 part · 0 holes |
| GA · State Senate District 10GEOID 13010 · effective 2024-01-01 | State legislative upper chamber | 0.132500K: 0.138 | 0.575500K: 0.576 | 4.2lower decile | stablePP difference 4.3% | 169.516 km4,031 vertices · 1 part · 0 holes |
| CA · Congressional District 28GEOID 0628 · effective 2024-01-01 | U.S. House | 0.132500K: 0.139 | 0.700500K: 0.700 | 11.6lower quartile | stablePP difference 5.2% | 441.676 km8,763 vertices · 1 part · 0 holes |
| CA · State Senate District 27GEOID 06027 · effective 2024-01-01 | State legislative upper chamber | 0.132500K: 0.138 | 0.650500K: 0.650 | 4.2lower decile | stablePP difference 4.3% | 276.413 km5,904 vertices · 1 part · 0 holes |
| LA · State Senate District 35GEOID 22035 · effective 2024-01-01 | State legislative upper chamber | 0.132500K: 0.143 | 0.594500K: 0.594 | 4.3lower decile | stablePP difference 7.5% | 648.325 km13,301 vertices · 1 part · 0 holes |
| NM · State Senate District 3GEOID 35003 · effective 2024-01-01 | State legislative upper chamber | 0.132500K: 0.135 | 0.617500K: 0.617 | 4.3lower decile | stablePP difference 2.5% | 843.779 km12,422 vertices · 1 part · 0 holes |
| HI · State House District 13GEOID 15013 · effective 2024-01-01 | State legislative lower chamber | 0.132500K: 0.100 | 0.540500K: 0.295 | 3.1lower decile | resolution sensitivePP difference 24.3% | 660.253 km2,869 vertices · 3 parts · 0 holes |
| MO · State House District 63GEOID 29063 · effective 2024-01-01 | State legislative lower chamber | 0.132500K: 0.141 | 0.671500K: 0.672 | 3.1lower decile | stablePP difference 6.3% | 69.295 km1,686 vertices · 1 part · 0 holes |
| NM · State Senate District 4GEOID 35004 · effective 2024-01-01 | State legislative upper chamber | 0.133500K: 0.136 | 0.587500K: 0.587 | 4.4lower decile | stablePP difference 2.2% | 982.644 km12,684 vertices · 1 part · 0 holes |
| TN · State House District 81GEOID 47081 · effective 2024-01-01 | State legislative lower chamber | 0.133500K: 0.142 | 0.669500K: 0.669 | 3.1lower decile | stablePP difference 6.3% | 456.069 km13,288 vertices · 2 parts · 0 holes |
| GA · State House District 93GEOID 13093 · effective 2024-01-01 | State legislative lower chamber | 0.133500K: 0.137 | 0.434500K: 0.435 | 3.2lower decile | stablePP difference 2.6% | 116.266 km2,579 vertices · 1 part · 0 holes |
| NH · State House District Merrimack 22GEOID 33622 · effective 2024-01-01 | State legislative lower chamber | 0.133500K: 0.150 | 0.591500K: 0.591 | 3.2lower decile | stablePP difference 11.3% | 43.274 km1,268 vertices · 1 part · 0 holes |
| PR · State House District 21GEOID 72021 · effective 2024-01-01 | State legislative lower chamber | 0.133500K: 0.190 | 0.655500K: 0.653 | 3.2lower decile | resolution sensitivePP difference 29.8% | 254.061 km11,330 vertices · 53 parts · 0 holes |
| VA · State Senate District 26GEOID 51026 · effective 2024-01-01 | State legislative upper chamber | 0.133500K: 0.096 | 0.648500K: 0.650 | 4.5lower decile | resolution sensitivePP difference 27.8% | 524.167 km13,782 vertices · 1 part · 0 holes |
| CA · Congressional District 3GEOID 0603 · effective 2024-01-01 | U.S. House | 0.133500K: 0.135 | 0.543500K: 0.543 | 11.8lower quartile | stablePP difference 1.5% | 2,320.216 km20,945 vertices · 1 part · 0 holes |
| PA · State House District 97GEOID 42097 · effective 2024-01-01 | State legislative lower chamber | 0.133500K: 0.141 | 0.623500K: 0.623 | 3.2lower decile | stablePP difference 5.4% | 170.68 km4,232 vertices · 3 parts · 0 holes |
| LA · State Senate District 5GEOID 22005 · effective 2024-01-01 | State legislative upper chamber | 0.134500K: 0.136 | 0.497500K: 0.497 | 4.5lower decile | stablePP difference 1.3% | 79.215 km1,061 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