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 4,001–4,100 of 7,272
| District | Type | Polsby–Popper | Convex hull | Relative percentile | Resolution check | Boundary detail |
|---|---|---|---|---|---|---|
| ND · State Senate District 36GEOID 38036 · effective 2024-01-01 | State legislative upper chamber | 0.338500K: 0.342 | 0.761500K: 0.761 | 57.5middle or higher | stablePP difference 1.0% | 383.748 km3,367 vertices · 1 part · 0 holes |
| ND · State House District 36GEOID 38036 · effective 2024-01-01 | State legislative lower chamber | 0.338500K: 0.342 | 0.761500K: 0.761 | 52.5middle or higher | stablePP difference 1.0% | 383.748 km3,367 vertices · 1 part · 0 holes |
| AR · State House District 44GEOID 05044 · effective 2024-01-01 | State legislative lower chamber | 0.338500K: 0.339 | 0.705500K: 0.705 | 52.5middle or higher | stablePP difference 0.3% | 276.937 km2,055 vertices · 1 part · 0 holes |
| TN · State House District 44GEOID 47044 · effective 2024-01-01 | State legislative lower chamber | 0.338500K: 0.343 | 0.814500K: 0.814 | 52.6middle or higher | stablePP difference 1.5% | 176.147 km3,575 vertices · 1 part · 0 holes |
| GA · State Senate District 7GEOID 13007 · effective 2024-01-01 | State legislative upper chamber | 0.338500K: 0.345 | 0.792500K: 0.792 | 57.5middle or higher | stablePP difference 1.9% | 84.168 km1,731 vertices · 1 part · 0 holes |
| NM · State Senate District 2GEOID 35002 · effective 2024-01-01 | State legislative upper chamber | 0.338500K: 0.344 | 0.792500K: 0.792 | 57.6middle or higher | stablePP difference 1.6% | 287.247 km4,365 vertices · 1 part · 0 holes |
| IN · State House District 97GEOID 18097 · effective 2024-01-01 | State legislative lower chamber | 0.338500K: 0.342 | 0.788500K: 0.788 | 52.6middle or higher | stablePP difference 0.9% | 50.481 km769 vertices · 1 part · 0 holes |
| WV · State Senate District 11GEOID 54011 · effective 2024-01-01 | State legislative upper chamber | 0.338500K: 0.350 | 0.800500K: 0.800 | 57.6middle or higher | stablePP difference 3.2% | 653.908 km10,286 vertices · 1 part · 0 holes |
| MS · State House District 17GEOID 28017 · effective 2024-01-01 | State legislative lower chamber | 0.338500K: 0.339 | 0.831500K: 0.831 | 52.6middle or higher | stablePP difference 0.3% | 78.58 km1,472 vertices · 1 part · 0 holes |
| MA · 14th Bristol DistrictGEOID 25023 · effective 2024-01-01 | State legislative lower chamber | 0.338500K: 0.340 | 0.719500K: 0.719 | 52.6middle or higher | stablePP difference 0.6% | 53.742 km612 vertices · 1 part · 0 holes |
| IN · State House District 13GEOID 18013 · effective 2024-01-01 | State legislative lower chamber | 0.338500K: 0.340 | 0.829500K: 0.829 | 52.6middle or higher | stablePP difference 0.5% | 385.461 km3,679 vertices · 1 part · 0 holes |
| MT · State House District 63GEOID 30063 · effective 2024-01-01 | State legislative lower chamber | 0.339500K: 0.349 | 0.742500K: 0.743 | 52.7middle or higher | stablePP difference 2.9% | 27.952 km584 vertices · 1 part · 0 holes |
| MD · State Senate District 20GEOID 24020 · effective 2024-01-01 | State legislative upper chamber | 0.339500K: 0.356 | 0.758500K: 0.761 | 57.7middle or higher | stablePP difference 4.9% | 42.803 km1,016 vertices · 1 part · 0 holes |
| MD · State Legislative District 20GEOID 24020 · effective 2024-01-01 | State legislative lower chamber | 0.339500K: 0.356 | 0.758500K: 0.761 | 52.7middle or higher | stablePP difference 4.9% | 42.803 km1,016 vertices · 1 part · 0 holes |
| MA · Fifth Middlesex DistrictGEOID 25D23 · effective 2024-01-01 | State legislative upper chamber | 0.339500K: 0.377 | 0.721500K: 0.721 | 57.7middle or higher | stablePP difference 10.1% | 59.666 km2,246 vertices · 1 part · 0 holes |
| KY · State House District 6GEOID 21006 · effective 2024-01-01 | State legislative lower chamber | 0.339500K: 0.343 | 0.735500K: 0.735 | 52.7middle or higher | stablePP difference 1.3% | 246.1 km2,172 vertices · 1 part · 0 holes |
| NH · State House District Strafford 17GEOID 33817 · effective 2024-01-01 | State legislative lower chamber | 0.339500K: 0.342 | 0.733500K: 0.733 | 52.7middle or higher | stablePP difference 1.1% | 22.869 km442 vertices · 1 part · 0 holes |
| UT · State House District 49GEOID 49049 · effective 2024-01-01 | State legislative lower chamber | 0.339500K: 0.352 | 0.731500K: 0.732 | 52.8middle or higher | stablePP difference 3.8% | 69.685 km2,445 vertices · 1 part · 0 holes |
| VA · State House District 6GEOID 51006 · effective 2024-01-01 | State legislative lower chamber | 0.339500K: 0.363 | 0.716500K: 0.717 | 52.8middle or higher | stablePP difference 6.6% | 76.47 km4,232 vertices · 1 part · 0 holes |
| IA · State House District 96GEOID 19096 · effective 2024-01-01 | State legislative lower chamber | 0.339500K: 0.344 | 0.730500K: 0.730 | 52.8middle or higher | stablePP difference 1.5% | 109.13 km934 vertices · 1 part · 0 holes |
| HI · State Senate District 24GEOID 15024 · effective 2024-01-01 | State legislative upper chamber | 0.339500K: 0.188 | 0.753500K: 0.633 | 57.8middle or higher | resolution sensitivePP difference 44.4% | 72.733 km909 vertices · 1 part · 0 holes |
| MO · State House District 77GEOID 29077 · effective 2024-01-01 | State legislative lower chamber | 0.339500K: 0.355 | 0.759500K: 0.761 | 52.8middle or higher | stablePP difference 4.6% | 25.06 km649 vertices · 1 part · 0 holes |
| NC · State House District 36GEOID 37036 · effective 2024-01-01 | State legislative lower chamber | 0.339500K: 0.356 | 0.787500K: 0.787 | 52.8middle or higher | stablePP difference 4.8% | 77.359 km3,146 vertices · 1 part · 0 holes |
| CT · State House District 144GEOID 09144 · effective 2024-01-01 | State legislative lower chamber | 0.339500K: 0.362 | 0.771500K: 0.785 | 52.9middle or higher | stablePP difference 6.2% | 17.575 km638 vertices · 1 part · 0 holes |
| CT · State Senate District 23GEOID 09023 · effective 2024-01-01 | State legislative upper chamber | 0.339500K: 0.283 | 0.763500K: 0.679 | 57.8middle or higher | resolution sensitivePP difference 16.7% | 37.256 km991 vertices · 1 part · 0 holes |
| SC · State House District 8GEOID 45008 · effective 2024-01-01 | State legislative lower chamber | 0.340500K: 0.348 | 0.794500K: 0.795 | 52.9middle or higher | stablePP difference 2.6% | 115.114 km2,693 vertices · 1 part · 0 holes |
| LA · State House District 9GEOID 22009 · effective 2024-01-01 | State legislative lower chamber | 0.340500K: 0.348 | 0.773500K: 0.774 | 52.9middle or higher | stablePP difference 2.3% | 139.118 km2,564 vertices · 1 part · 0 holes |
| MN · State Senate District 39GEOID 27039 · effective 2024-01-01 | State legislative upper chamber | 0.340500K: 0.341 | 0.694500K: 0.694 | 57.9middle or higher | stablePP difference 0.5% | 46.57 km553 vertices · 1 part · 0 holes |
| NC · State Senate District 19GEOID 37019 · effective 2024-01-01 | State legislative upper chamber | 0.340500K: 0.353 | 0.796500K: 0.797 | 58.0middle or higher | stablePP difference 3.7% | 110.755 km2,313 vertices · 1 part · 0 holes |
| MO · State House District 163GEOID 29163 · effective 2024-01-01 | State legislative lower chamber | 0.340500K: 0.343 | 0.826500K: 0.826 | 52.9middle or higher | stablePP difference 1.1% | 135.808 km760 vertices · 1 part · 0 holes |
| TX · Congressional District 3GEOID 4803 · effective 2024-01-01 | U.S. House | 0.340500K: 0.351 | 0.850500K: 0.850 | 71.8middle or higher | stablePP difference 3.3% | 378.644 km6,194 vertices · 1 part · 0 holes |
| WI · State Senate District 24GEOID 55024 · effective 2024-01-01 | State legislative upper chamber | 0.340500K: 0.343 | 0.730500K: 0.730 | 58.0middle or higher | stablePP difference 0.8% | 567.717 km4,556 vertices · 1 part · 0 holes |
| IL · State Senate District 40GEOID 17040 · effective 2024-01-01 | State legislative upper chamber | 0.340500K: 0.342 | 0.718500K: 0.718 | 58.0middle or higher | stablePP difference 0.7% | 260.295 km3,317 vertices · 1 part · 0 holes |
| DE · State Representative District 11GEOID 10011 · effective 2024-01-01 | State legislative lower chamber | 0.340500K: 0.344 | 0.817500K: 0.816 | 52.9middle or higher | stablePP difference 1.3% | 118.642 km1,634 vertices · 1 part · 0 holes |
| GA · State Senate District 49GEOID 13049 · effective 2024-01-01 | State legislative upper chamber | 0.340500K: 0.346 | 0.790500K: 0.790 | 58.1middle or higher | stablePP difference 1.9% | 190.688 km2,863 vertices · 1 part · 0 holes |
| IN · State Senate District 20GEOID 18020 · effective 2024-01-01 | State legislative upper chamber | 0.340500K: 0.342 | 0.683500K: 0.683 | 58.1middle or higher | stablePP difference 0.6% | 114.742 km1,615 vertices · 1 part · 0 holes |
| RI · State House District 44GEOID 44044 · effective 2024-01-01 | State legislative lower chamber | 0.340500K: 0.343 | 0.644500K: 0.645 | 53.0middle or higher | stablePP difference 0.8% | 39.086 km758 vertices · 1 part · 0 holes |
| OR · State House District 31GEOID 41031 · effective 2024-01-01 | State legislative lower chamber | 0.340500K: 0.345 | 0.793500K: 0.794 | 53.0middle or higher | stablePP difference 1.5% | 330.737 km2,883 vertices · 1 part · 0 holes |
| PA · State House District 144GEOID 42144 · effective 2024-01-01 | State legislative lower chamber | 0.340500K: 0.343 | 0.793500K: 0.794 | 53.0middle or higher | stablePP difference 0.9% | 50.21 km676 vertices · 1 part · 0 holes |
| NY · Assembly District 9GEOID 36009 · effective 2024-01-01 | State legislative lower chamber | 0.340500K: 0.242 | 0.811500K: 0.681 | 53.0middle or higher | resolution sensitivePP difference 28.9% | 107.647 km853 vertices · 1 part · 0 holes |
| KS · State Senate District 27GEOID 20027 · effective 2024-01-01 | State legislative upper chamber | 0.340500K: 0.351 | 0.764500K: 0.764 | 58.2middle or higher | stablePP difference 3.0% | 58.737 km687 vertices · 1 part · 0 holes |
| NM · State House District 43GEOID 35043 · effective 2024-01-01 | State legislative lower chamber | 0.340500K: 0.352 | 0.822500K: 0.822 | 53.0middle or higher | stablePP difference 3.3% | 306.432 km5,557 vertices · 1 part · 0 holes |
| WY · State House District 51GEOID 56051 · effective 2024-01-01 | State legislative lower chamber | 0.341500K: 0.349 | 0.879500K: 0.879 | 53.1middle or higher | stablePP difference 2.6% | 324.828 km3,123 vertices · 1 part · 0 holes |
| MI · State House District 23GEOID 26023 · effective 2024-01-01 | State legislative lower chamber | 0.341500K: 0.345 | 0.681500K: 0.681 | 53.1middle or higher | stablePP difference 1.4% | 96.28 km1,068 vertices · 1 part · 0 holes |
| WV · Delegate District 42GEOID 54042 · effective 2024-01-01 | State legislative lower chamber | 0.341500K: 0.361 | 0.790500K: 0.790 | 53.1middle or higher | stablePP difference 5.8% | 127.459 km4,392 vertices · 1 part · 0 holes |
| MT · State House District 68GEOID 30068 · effective 2024-01-01 | State legislative lower chamber | 0.341500K: 0.352 | 0.792500K: 0.792 | 53.1middle or higher | stablePP difference 3.1% | 139.986 km1,926 vertices · 1 part · 0 holes |
| CT · State Senate District 10GEOID 09010 · effective 2024-01-01 | State legislative upper chamber | 0.341500K: 0.361 | 0.783500K: 0.778 | 58.3middle or higher | stablePP difference 5.6% | 38.607 km774 vertices · 1 part · 0 holes |
| NY · Assembly District 99GEOID 36099 · effective 2024-01-01 | State legislative lower chamber | 0.341500K: 0.346 | 0.769500K: 0.769 | 53.1middle or higher | stablePP difference 1.5% | 130.073 km1,222 vertices · 1 part · 0 holes |
| KY · State Senate District 14GEOID 21014 · effective 2024-01-01 | State legislative upper chamber | 0.341500K: 0.359 | 0.853500K: 0.853 | 58.3middle or higher | stablePP difference 5.0% | 381.911 km6,148 vertices · 1 part · 0 holes |
| OK · State Senate District 12GEOID 40012 · effective 2024-01-01 | State legislative upper chamber | 0.341500K: 0.342 | 0.744500K: 0.744 | 58.4middle or higher | stablePP difference 0.3% | 231.795 km1,977 vertices · 1 part · 0 holes |
| OK · State House District 71GEOID 40071 · effective 2024-01-01 | State legislative lower chamber | 0.341500K: 0.342 | 0.776500K: 0.777 | 53.2middle or higher | stablePP difference 0.4% | 29.708 km213 vertices · 1 part · 0 holes |
| NC · State Senate District 20GEOID 37020 · effective 2024-01-01 | State legislative upper chamber | 0.341500K: 0.342 | 0.732500K: 0.732 | 58.4middle or higher | stablePP difference 0.4% | 273.771 km5,267 vertices · 1 part · 0 holes |
| AL · State House District 7GEOID 01007 · effective 2024-01-01 | State legislative lower chamber | 0.341500K: 0.352 | 0.821500K: 0.821 | 53.2middle or higher | stablePP difference 3.1% | 288.993 km3,548 vertices · 1 part · 0 holes |
| NY · State Senate District 63GEOID 36063 · effective 2024-01-01 | State legislative upper chamber | 0.341500K: 0.346 | 0.758500K: 0.762 | 58.5middle or higher | stablePP difference 1.5% | 86.767 km966 vertices · 1 part · 0 holes |
| VA · State Senate District 38GEOID 51038 · effective 2024-01-01 | State legislative upper chamber | 0.341500K: 0.384 | 0.784500K: 0.785 | 58.5middle or higher | stablePP difference 11.3% | 92.268 km6,121 vertices · 1 part · 0 holes |
| SD · State Senate District 6GEOID 46006 · effective 2024-01-01 | State legislative upper chamber | 0.341500K: 0.365 | 0.835500K: 0.835 | 58.6middle or higher | stablePP difference 6.6% | 99.266 km1,845 vertices · 1 part · 0 holes |
| SD · State House District 6GEOID 46006 · effective 2024-01-01 | State legislative lower chamber | 0.341500K: 0.365 | 0.835500K: 0.835 | 53.2middle or higher | stablePP difference 6.6% | 99.266 km1,845 vertices · 1 part · 0 holes |
| AR · State House District 8GEOID 05008 · effective 2024-01-01 | State legislative lower chamber | 0.341500K: 0.354 | 0.813500K: 0.813 | 53.2middle or higher | stablePP difference 3.6% | 83.634 km1,614 vertices · 1 part · 0 holes |
| MN · State House District 58AGEOID 2758A · effective 2024-01-01 | State legislative lower chamber | 0.341500K: 0.344 | 0.739500K: 0.739 | 53.2middle or higher | stablePP difference 0.8% | 146.792 km1,249 vertices · 1 part · 0 holes |
| MT · State House District 17GEOID 30017 · effective 2024-01-01 | State legislative lower chamber | 0.341500K: 0.349 | 0.834500K: 0.834 | 53.3middle or higher | stablePP difference 2.2% | 655.869 km9,259 vertices · 1 part · 0 holes |
| OH · State House District 35GEOID 39035 · effective 2024-01-01 | State legislative lower chamber | 0.341500K: 0.346 | 0.720500K: 0.720 | 53.3middle or higher | stablePP difference 1.4% | 132.587 km1,228 vertices · 1 part · 0 holes |
| GA · State Senate District 48GEOID 13048 · effective 2024-01-01 | State legislative upper chamber | 0.341500K: 0.348 | 0.788500K: 0.789 | 58.6middle or higher | stablePP difference 2.1% | 92.331 km2,165 vertices · 1 part · 0 holes |
| MS · State House District 74GEOID 28074 · effective 2024-01-01 | State legislative lower chamber | 0.341500K: 0.363 | 0.784500K: 0.784 | 53.3middle or higher | stablePP difference 6.0% | 84.101 km2,063 vertices · 1 part · 0 holes |
| NY · Congressional District 21GEOID 3621 · effective 2024-01-01 | U.S. House | 0.341500K: 0.348 | 0.849500K: 0.849 | 72.0middle or higher | stablePP difference 2.1% | 1,273.778 km10,695 vertices · 1 part · 0 holes |
| PA · State House District 163GEOID 42163 · effective 2024-01-01 | State legislative lower chamber | 0.341500K: 0.353 | 0.733500K: 0.733 | 53.3middle or higher | stablePP difference 3.4% | 26.389 km1,019 vertices · 1 part · 0 holes |
| AR · State Senate District 11GEOID 05011 · effective 2024-01-01 | State legislative upper chamber | 0.341500K: 0.363 | 0.784500K: 0.784 | 58.7middle or higher | stablePP difference 6.0% | 203.098 km5,321 vertices · 1 part · 0 holes |
| GA · State House District 177GEOID 13177 · effective 2024-01-01 | State legislative lower chamber | 0.341500K: 0.363 | 0.758500K: 0.758 | 53.4middle or higher | stablePP difference 6.0% | 70.139 km1,854 vertices · 1 part · 0 holes |
| IN · State House District 60GEOID 18060 · effective 2024-01-01 | State legislative lower chamber | 0.342500K: 0.348 | 0.787500K: 0.787 | 53.4middle or higher | stablePP difference 1.7% | 209.479 km2,812 vertices · 1 part · 0 holes |
| AR · State House District 2GEOID 05002 · effective 2024-01-01 | State legislative lower chamber | 0.342500K: 0.345 | 0.790500K: 0.791 | 53.4middle or higher | stablePP difference 1.0% | 290.851 km3,363 vertices · 1 part · 0 holes |
| VT · Chittenden-20 State House DistrictGEOID 50C20 · effective 2024-01-01 | State legislative lower chamber | 0.342500K: 0.348 | 0.747500K: 0.747 | 53.4middle or higher | stablePP difference 1.6% | 52.121 km691 vertices · 1 part · 0 holes |
| MO · State Senate District 1GEOID 29001 · effective 2024-01-01 | State legislative upper chamber | 0.342500K: 0.350 | 0.802500K: 0.804 | 58.7middle or higher | stablePP difference 2.2% | 75.534 km1,486 vertices · 1 part · 0 holes |
| OK · State Senate District 8GEOID 40008 · effective 2024-01-01 | State legislative upper chamber | 0.342500K: 0.344 | 0.815500K: 0.815 | 58.8middle or higher | stablePP difference 0.6% | 510.817 km6,227 vertices · 1 part · 0 holes |
| SC · State Senate District 27GEOID 45027 · effective 2024-01-01 | State legislative upper chamber | 0.342500K: 0.357 | 0.808500K: 0.808 | 58.8middle or higher | stablePP difference 4.3% | 386.752 km9,561 vertices · 1 part · 0 holes |
| OH · State Senate District 13GEOID 39013 · effective 2024-01-01 | State legislative upper chamber | 0.342500K: 0.372 | 0.725500K: 0.789 | 58.9middle or higher | stablePP difference 8.1% | 360.276 km2,688 vertices · 1 part · 0 holes |
| GA · State House District 170GEOID 13170 · effective 2024-01-01 | State legislative lower chamber | 0.342500K: 0.373 | 0.816500K: 0.816 | 53.4middle or higher | stablePP difference 8.2% | 260.896 km3,953 vertices · 1 part · 0 holes |
| ME · State House District 16GEOID 23016 · effective 2024-01-01 | State legislative lower chamber | 0.342500K: 0.140 | 0.740500K: 0.643 | 53.5middle or higher | resolution sensitivePP difference 59.2% | 159.574 km1,525 vertices · 1 part · 0 holes |
| MI · State Senate District 15GEOID 26015 · effective 2024-01-01 | State legislative upper chamber | 0.342500K: 0.347 | 0.773500K: 0.773 | 58.9middle or higher | stablePP difference 1.3% | 196.319 km1,266 vertices · 1 part · 0 holes |
| VA · State House District 2GEOID 51002 · effective 2024-01-01 | State legislative lower chamber | 0.342500K: 0.380 | 0.721500K: 0.721 | 53.5middle or higher | stablePP difference 9.9% | 28.958 km4,775 vertices · 1 part · 0 holes |
| NH · State Senate District 3GEOID 33003 · effective 2024-01-01 | State legislative upper chamber | 0.342500K: 0.348 | 0.820500K: 0.820 | 59.0middle or higher | stablePP difference 1.6% | 360.623 km3,836 vertices · 1 part · 0 holes |
| MN · State Senate District 27GEOID 27027 · effective 2024-01-01 | State legislative upper chamber | 0.342500K: 0.348 | 0.779500K: 0.779 | 59.0middle or higher | stablePP difference 1.5% | 232.481 km3,812 vertices · 1 part · 0 holes |
| OK · Congressional District 5GEOID 4005 · effective 2024-01-01 | U.S. House | 0.343500K: 0.345 | 0.761500K: 0.761 | 72.3middle or higher | stablePP difference 0.8% | 583.578 km8,999 vertices · 1 part · 0 holes |
| HI · State House District 8GEOID 15008 · effective 2024-01-01 | State legislative lower chamber | 0.343500K: 0.360 | 0.805500K: 0.803 | 53.5middle or higher | stablePP difference 4.9% | 232.068 km4,532 vertices · 1 part · 0 holes |
| WV · Delegate District 9GEOID 54009 · effective 2024-01-01 | State legislative lower chamber | 0.343500K: 0.359 | 0.798500K: 0.798 | 53.5middle or higher | stablePP difference 4.5% | 262.64 km7,032 vertices · 1 part · 0 holes |
| MO · State House District 112GEOID 29112 · effective 2024-01-01 | State legislative lower chamber | 0.343500K: 0.353 | 0.828500K: 0.828 | 53.5middle or higher | stablePP difference 2.8% | 71.695 km1,726 vertices · 1 part · 0 holes |
| MA · 9th Plymouth DistrictGEOID 25119 · effective 2024-01-01 | State legislative lower chamber | 0.343500K: 0.347 | 0.689500K: 0.689 | 53.5middle or higher | stablePP difference 1.3% | 63.714 km970 vertices · 1 part · 0 holes |
| NY · State Senate District 40GEOID 36040 · effective 2024-01-01 | State legislative upper chamber | 0.343500K: 0.346 | 0.730500K: 0.730 | 59.1middle or higher | stablePP difference 1.0% | 205.404 km2,298 vertices · 1 part · 0 holes |
| NY · Assembly District 111GEOID 36111 · effective 2024-01-01 | State legislative lower chamber | 0.343500K: 0.350 | 0.776500K: 0.776 | 53.6middle or higher | stablePP difference 1.9% | 147.924 km1,581 vertices · 1 part · 0 holes |
| VT · Chittenden North Senatorial DistrictGEOID 50CHN · effective 2024-01-01 | State legislative upper chamber | 0.343500K: 0.344 | 0.736500K: 0.737 | 59.1middle or higher | stablePP difference 0.4% | 126.124 km882 vertices · 1 part · 0 holes |
| SC · State Senate District 1GEOID 45001 · effective 2024-01-01 | State legislative upper chamber | 0.343500K: 0.356 | 0.843500K: 0.843 | 59.2middle or higher | stablePP difference 3.7% | 261.129 km4,845 vertices · 1 part · 0 holes |
| OR · State House District 10GEOID 41010 · effective 2024-01-01 | State legislative lower chamber | 0.343500K: 0.330 | 0.820500K: 0.803 | 53.6middle or higher | stablePP difference 3.8% | 462.772 km4,613 vertices · 1 part · 0 holes |
| MO · State House District 145GEOID 29145 · effective 2024-01-01 | State legislative lower chamber | 0.343500K: 0.350 | 0.854500K: 0.854 | 53.6middle or higher | stablePP difference 2.1% | 306.553 km3,453 vertices · 1 part · 0 holes |
| FL · State House District 52GEOID 12052 · effective 2024-01-01 | State legislative lower chamber | 0.343500K: 0.347 | 0.700500K: 0.700 | 53.6middle or higher | stablePP difference 1.1% | 289.354 km3,116 vertices · 1 part · 0 holes |
| NH · State House District Sullivan 04GEOID 33904 · effective 2024-01-01 | State legislative lower chamber | 0.343500K: 0.343 | 0.726500K: 0.726 | 53.6middle or higher | stablePP difference 0.0% | 122.458 km1,053 vertices · 1 part · 0 holes |
| MN · State House District 1BGEOID 2701B · effective 2024-01-01 | State legislative lower chamber | 0.343500K: 0.350 | 0.803500K: 0.804 | 53.7middle or higher | stablePP difference 1.9% | 568.053 km12,670 vertices · 1 part · 0 holes |
| GA · State House District 27GEOID 13027 · effective 2024-01-01 | State legislative lower chamber | 0.343500K: 0.355 | 0.818500K: 0.818 | 53.7middle or higher | stablePP difference 3.2% | 154.227 km2,246 vertices · 1 part · 0 holes |
| NH · State House District Grafton 14GEOID 33414 · effective 2024-01-01 | State legislative lower chamber | 0.343500K: 0.348 | 0.727500K: 0.729 | 53.7middle or higher | stablePP difference 1.3% | 39.617 km510 vertices · 1 part · 0 holes |
| RI · State Senate District 17GEOID 44017 · effective 2024-01-01 | State legislative upper chamber | 0.343500K: 0.355 | 0.688500K: 0.689 | 59.2middle or higher | stablePP difference 3.3% | 59.53 km1,227 vertices · 1 part · 0 holes |
| DE · State Representative District 9GEOID 10009 · effective 2024-01-01 | State legislative lower chamber | 0.344500K: 0.319 | 0.749500K: 0.733 | 53.7middle or higher | stablePP difference 7.3% | 99.742 km1,469 vertices · 1 part · 0 holes |
| PR · State Senate District 7GEOID 72007 · effective 2024-01-01 | State legislative upper chamber | 0.344500K: 0.432 | 0.829500K: 0.831 | 59.3middle or higher | resolution sensitivePP difference 20.5% | 200.225 km6,372 vertices · 5 parts · 0 holes |
| MO · State House District 1GEOID 29001 · effective 2024-01-01 | State legislative lower chamber | 0.344500K: 0.347 | 0.785500K: 0.785 | 53.8middle or higher | stablePP difference 0.9% | 475.4 km3,822 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