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 3,401–3,500 of 7,272
| District | Type | Polsby–Popper | Convex hull | Relative percentile | Resolution check | Boundary detail |
|---|---|---|---|---|---|---|
| IN · State House District 73GEOID 18073 · effective 2024-01-01 | State legislative lower chamber | 0.310500K: 0.314 | 0.737500K: 0.737 | 44.1middle or higher | stablePP difference 1.4% | 252.435 km3,560 vertices · 1 part · 0 holes |
| MI · State House District 63GEOID 26063 · effective 2024-01-01 | State legislative lower chamber | 0.310500K: 0.200 | 0.714500K: 0.645 | 44.2middle or higher | resolution sensitivePP difference 35.5% | 155.021 km804 vertices · 1 part · 0 holes |
| UT · State Senate District 5GEOID 49005 · effective 2024-01-01 | State legislative upper chamber | 0.310500K: 0.324 | 0.714500K: 0.714 | 48.6middle or higher | stablePP difference 4.4% | 117.927 km2,694 vertices · 1 part · 0 holes |
| IN · State House District 7GEOID 18007 · effective 2024-01-01 | State legislative lower chamber | 0.310500K: 0.311 | 0.721500K: 0.721 | 44.2middle or higher | stablePP difference 0.4% | 191.13 km1,836 vertices · 1 part · 0 holes |
| VA · State Senate District 6GEOID 51006 · effective 2024-01-01 | State legislative upper chamber | 0.310500K: 0.333 | 0.816500K: 0.816 | 48.6middle or higher | stablePP difference 6.8% | 586.799 km14,562 vertices · 1 part · 0 holes |
| NV · Assembly District 27GEOID 32027 · effective 2024-01-01 | State legislative lower chamber | 0.310500K: 0.316 | 0.747500K: 0.748 | 44.2middle or higher | stablePP difference 1.9% | 67.878 km1,136 vertices · 1 part · 0 holes |
| OR · State House District 11GEOID 41011 · effective 2024-01-01 | State legislative lower chamber | 0.310500K: 0.314 | 0.780500K: 0.781 | 44.2middle or higher | stablePP difference 1.3% | 428.219 km5,606 vertices · 1 part · 0 holes |
| PA · State House District 39GEOID 42039 · effective 2024-01-01 | State legislative lower chamber | 0.310500K: 0.319 | 0.783500K: 0.783 | 44.3middle or higher | stablePP difference 2.8% | 100.396 km1,824 vertices · 1 part · 0 holes |
| TX · State House District 120GEOID 48120 · effective 2024-01-01 | State legislative lower chamber | 0.310500K: 0.323 | 0.803500K: 0.803 | 44.3middle or higher | stablePP difference 3.9% | 80.963 km1,289 vertices · 1 part · 0 holes |
| MN · State House District 63BGEOID 2763B · effective 2024-01-01 | State legislative lower chamber | 0.310500K: 0.312 | 0.751500K: 0.752 | 44.3middle or higher | stablePP difference 0.6% | 28.207 km367 vertices · 1 part · 0 holes |
| NH · State House District Cheshire 04GEOID 33204 · effective 2024-01-01 | State legislative lower chamber | 0.310500K: 0.312 | 0.739500K: 0.739 | 44.3middle or higher | stablePP difference 0.4% | 18.527 km292 vertices · 1 part · 0 holes |
| NJ · State Senate District 15GEOID 34015 · effective 2024-01-01 | State legislative upper chamber | 0.311500K: 0.319 | 0.720500K: 0.720 | 48.7middle or higher | stablePP difference 2.5% | 164.597 km4,609 vertices · 1 part · 0 holes |
| NJ · Assembly District 15GEOID 34015 · effective 2024-01-01 | State legislative lower chamber | 0.311500K: 0.319 | 0.720500K: 0.720 | 44.3middle or higher | stablePP difference 2.5% | 164.597 km4,609 vertices · 1 part · 0 holes |
| WV · Delegate District 57GEOID 54057 · effective 2024-01-01 | State legislative lower chamber | 0.311500K: 0.331 | 0.769500K: 0.770 | 44.4middle or higher | stablePP difference 6.1% | 30.979 km990 vertices · 1 part · 0 holes |
| CA · Congressional District 22GEOID 0622 · effective 2024-01-01 | U.S. House | 0.311500K: 0.314 | 0.791500K: 0.791 | 67.7middle or higher | stablePP difference 1.0% | 672.66 km5,965 vertices · 1 part · 0 holes |
| KS · State House District 79GEOID 20079 · effective 2024-01-01 | State legislative lower chamber | 0.311500K: 0.314 | 0.736500K: 0.736 | 44.4middle or higher | stablePP difference 1.0% | 282.053 km2,384 vertices · 1 part · 0 holes |
| AR · State House District 31GEOID 05031 · effective 2024-01-01 | State legislative lower chamber | 0.311500K: 0.313 | 0.835500K: 0.835 | 44.4middle or higher | stablePP difference 0.6% | 78.105 km739 vertices · 1 part · 0 holes |
| MO · State House District 74GEOID 29074 · effective 2024-01-01 | State legislative lower chamber | 0.311500K: 0.321 | 0.736500K: 0.736 | 44.4middle or higher | stablePP difference 3.3% | 35.458 km1,023 vertices · 1 part · 0 holes |
| AZ · State Senate District 8GEOID 04008 · effective 2024-01-01 | State legislative upper chamber | 0.311500K: 0.318 | 0.740500K: 0.740 | 48.8middle or higher | stablePP difference 2.1% | 119.417 km1,609 vertices · 1 part · 0 holes |
| AZ · State House District 8GEOID 04008 · effective 2024-01-01 | State legislative lower chamber | 0.311500K: 0.318 | 0.740500K: 0.740 | 44.4middle or higher | stablePP difference 2.1% | 119.417 km1,609 vertices · 1 part · 0 holes |
| NH · State Senate District 24GEOID 33024 · effective 2024-01-01 | State legislative upper chamber | 0.311500K: 0.352 | 0.664500K: 0.575 | 48.8middle or higher | resolution sensitivePP difference 11.6% | 111.987 km1,129 vertices · 1 part · 0 holes |
| CT · State House District 100GEOID 09100 · effective 2024-01-01 | State legislative lower chamber | 0.311500K: 0.318 | 0.712500K: 0.713 | 44.5middle or higher | stablePP difference 2.2% | 52.465 km907 vertices · 1 part · 0 holes |
| UT · State House District 61GEOID 49061 · effective 2024-01-01 | State legislative lower chamber | 0.311500K: 0.323 | 0.748500K: 0.748 | 44.5middle or higher | stablePP difference 3.7% | 100.86 km1,129 vertices · 1 part · 0 holes |
| RI · State House District 58GEOID 44058 · effective 2024-01-01 | State legislative lower chamber | 0.311500K: 0.318 | 0.714500K: 0.714 | 44.5middle or higher | stablePP difference 2.2% | 13.597 km349 vertices · 1 part · 0 holes |
| NM · State House District 33GEOID 35033 · effective 2024-01-01 | State legislative lower chamber | 0.311500K: 0.314 | 0.671500K: 0.671 | 44.5middle or higher | stablePP difference 0.9% | 137.44 km1,934 vertices · 1 part · 0 holes |
| WY · State Senate District 8GEOID 56008 · effective 2024-01-01 | State legislative upper chamber | 0.311500K: 0.332 | 0.741500K: 0.742 | 48.9middle or higher | stablePP difference 6.4% | 38.822 km638 vertices · 1 part · 0 holes |
| CA · State Senate District 17GEOID 06017 · effective 2024-01-01 | State legislative upper chamber | 0.311500K: 0.254 | 0.810500K: 0.763 | 48.9middle or higher | stablePP difference 18.5% | 913.505 km10,150 vertices · 1 part · 0 holes |
| VT · Franklin-2 State House DistrictGEOID 50F-2 · effective 2024-01-01 | State legislative lower chamber | 0.311500K: 0.316 | 0.744500K: 0.744 | 44.5middle or higher | stablePP difference 1.5% | 77.95 km530 vertices · 1 part · 0 holes |
| MI · State House District 80GEOID 26080 · effective 2024-01-01 | State legislative lower chamber | 0.311500K: 0.317 | 0.798500K: 0.798 | 44.6middle or higher | stablePP difference 1.9% | 80.852 km839 vertices · 1 part · 0 holes |
| IA · State House District 15GEOID 19015 · effective 2024-01-01 | State legislative lower chamber | 0.311500K: 0.315 | 0.798500K: 0.798 | 44.6middle or higher | stablePP difference 1.3% | 319.309 km4,346 vertices · 1 part · 0 holes |
| VT · Chittenden-17 State House DistrictGEOID 50C17 · effective 2024-01-01 | State legislative lower chamber | 0.311500K: 0.318 | 0.729500K: 0.729 | 44.6middle or higher | stablePP difference 2.2% | 26.302 km576 vertices · 1 part · 0 holes |
| KS · State House District 39GEOID 20039 · effective 2024-01-01 | State legislative lower chamber | 0.311500K: 0.314 | 0.674500K: 0.675 | 44.6middle or higher | stablePP difference 0.8% | 45.483 km667 vertices · 1 part · 0 holes |
| AK · State House District 28GEOID 02028 · effective 2024-01-01 | State legislative lower chamber | 0.311500K: 0.316 | 0.740500K: 0.740 | 44.6middle or higher | stablePP difference 1.4% | 53.523 km748 vertices · 1 part · 0 holes |
| CT · State House District 86GEOID 09086 · effective 2024-01-01 | State legislative lower chamber | 0.312500K: 0.315 | 0.696500K: 0.696 | 44.7middle or higher | stablePP difference 1.0% | 73.91 km1,212 vertices · 1 part · 0 holes |
| MN · State Senate District 63GEOID 27063 · effective 2024-01-01 | State legislative upper chamber | 0.312500K: 0.313 | 0.665500K: 0.666 | 49.0middle or higher | stablePP difference 0.5% | 38.129 km503 vertices · 1 part · 0 holes |
| MO · State House District 25GEOID 29025 · effective 2024-01-01 | State legislative lower chamber | 0.312500K: 0.315 | 0.882500K: 0.887 | 44.7middle or higher | stablePP difference 1.2% | 29.445 km381 vertices · 1 part · 0 holes |
| KY · State House District 73GEOID 21073 · effective 2024-01-01 | State legislative lower chamber | 0.312500K: 0.318 | 0.795500K: 0.795 | 44.7middle or higher | stablePP difference 1.9% | 182.69 km2,989 vertices · 1 part · 0 holes |
| CT · State Senate District 18GEOID 09018 · effective 2024-01-01 | State legislative upper chamber | 0.312500K: 0.294 | 0.809500K: 0.794 | 49.0middle or higher | stablePP difference 5.8% | 185.282 km2,170 vertices · 1 part · 0 holes |
| OH · Congressional District 4GEOID 3904 · effective 2024-01-01 | U.S. House | 0.312500K: 0.314 | 0.733500K: 0.733 | 68.0middle or higher | stablePP difference 0.7% | 716.419 km5,843 vertices · 1 part · 0 holes |
| WV · Delegate District 64GEOID 54064 · effective 2024-01-01 | State legislative lower chamber | 0.312500K: 0.325 | 0.766500K: 0.766 | 44.7middle or higher | stablePP difference 4.0% | 195.065 km5,536 vertices · 1 part · 0 holes |
| IL · State House District 53GEOID 17053 · effective 2024-01-01 | State legislative lower chamber | 0.312500K: 0.317 | 0.776500K: 0.777 | 44.8middle or higher | stablePP difference 1.7% | 46.31 km1,134 vertices · 1 part · 0 holes |
| LA · State House District 90GEOID 22090 · effective 2024-01-01 | State legislative lower chamber | 0.312500K: 0.314 | 0.785500K: 0.784 | 44.8middle or higher | stablePP difference 0.8% | 69.721 km1,702 vertices · 1 part · 0 holes |
| CO · State Senate District 30GEOID 08030 · effective 2024-01-01 | State legislative upper chamber | 0.312500K: 0.317 | 0.770500K: 0.770 | 49.0middle or higher | stablePP difference 1.6% | 112.197 km2,120 vertices · 1 part · 0 holes |
| NE · State Senate District 28GEOID 31028 · effective 2024-01-01 | State legislative upper chamber | 0.312500K: 0.316 | 0.672500K: 0.673 | 49.1middle or higher | stablePP difference 1.4% | 26.426 km332 vertices · 1 part · 0 holes |
| IA · State House District 81GEOID 19081 · effective 2024-01-01 | State legislative lower chamber | 0.312500K: 0.314 | 0.794500K: 0.795 | 44.8middle or higher | stablePP difference 0.5% | 56.861 km636 vertices · 1 part · 0 holes |
| GA · State House District 142GEOID 13142 · effective 2024-01-01 | State legislative lower chamber | 0.312500K: 0.318 | 0.753500K: 0.753 | 44.8middle or higher | stablePP difference 1.9% | 66.138 km1,000 vertices · 1 part · 0 holes |
| RI · State Senate District 12GEOID 44012 · effective 2024-01-01 | State legislative upper chamber | 0.312500K: 0.215 | 0.739500K: 0.622 | 49.2middle or higher | resolution sensitivePP difference 31.2% | 88.612 km1,270 vertices · 1 part · 0 holes |
| NM · State House District 13GEOID 35013 · effective 2024-01-01 | State legislative lower chamber | 0.312500K: 0.319 | 0.770500K: 0.770 | 44.8middle or higher | stablePP difference 2.1% | 20.428 km257 vertices · 1 part · 0 holes |
| IL · State House District 97GEOID 17097 · effective 2024-01-01 | State legislative lower chamber | 0.312500K: 0.314 | 0.747500K: 0.747 | 44.9middle or higher | stablePP difference 0.5% | 83.098 km1,382 vertices · 1 part · 0 holes |
| MT · State Senate District 48GEOID 30048 · effective 2024-01-01 | State legislative upper chamber | 0.312500K: 0.325 | 0.732500K: 0.733 | 49.2middle or higher | stablePP difference 4.0% | 78.79 km1,057 vertices · 1 part · 0 holes |
| NH · State House District Carroll 03GEOID 33103 · effective 2024-01-01 | State legislative lower chamber | 0.312500K: 0.313 | 0.625500K: 0.626 | 44.9middle or higher | stablePP difference 0.3% | 135.495 km1,078 vertices · 1 part · 0 holes |
| UT · State House District 19GEOID 49019 · effective 2024-01-01 | State legislative lower chamber | 0.312500K: 0.327 | 0.709500K: 0.709 | 44.9middle or higher | stablePP difference 4.3% | 62.215 km1,529 vertices · 1 part · 0 holes |
| NH · State House District Coos 04GEOID 33304 · effective 2024-01-01 | State legislative lower chamber | 0.312500K: 0.313 | 0.675500K: 0.676 | 44.9middle or higher | stablePP difference 0.1% | 129.381 km634 vertices · 1 part · 0 holes |
| GA · State Senate District 16GEOID 13016 · effective 2024-01-01 | State legislative upper chamber | 0.313500K: 0.333 | 0.766500K: 0.766 | 49.3middle or higher | stablePP difference 6.0% | 280.892 km8,196 vertices · 1 part · 0 holes |
| IN · State House District 66GEOID 18066 · effective 2024-01-01 | State legislative lower chamber | 0.313500K: 0.322 | 0.774500K: 0.774 | 44.9middle or higher | stablePP difference 2.9% | 209.179 km2,582 vertices · 1 part · 0 holes |
| AR · State Senate District 30GEOID 05030 · effective 2024-01-01 | State legislative upper chamber | 0.313500K: 0.328 | 0.771500K: 0.772 | 49.3middle or higher | stablePP difference 4.7% | 73.238 km1,537 vertices · 1 part · 0 holes |
| WI · Assembly District 15GEOID 55015 · effective 2024-01-01 | State legislative lower chamber | 0.313500K: 0.331 | 0.765500K: 0.766 | 45.0middle or higher | stablePP difference 5.6% | 71.117 km1,586 vertices · 1 part · 0 holes |
| VA · State House District 46GEOID 51046 · effective 2024-01-01 | State legislative lower chamber | 0.313500K: 0.319 | 0.773500K: 0.773 | 45.0middle or higher | stablePP difference 1.9% | 385.894 km4,764 vertices · 1 part · 0 holes |
| GA · State House District 34GEOID 13034 · effective 2024-01-01 | State legislative lower chamber | 0.313500K: 0.330 | 0.718500K: 0.718 | 45.0middle or higher | stablePP difference 5.2% | 62.148 km1,410 vertices · 1 part · 0 holes |
| MT · State Senate District 9GEOID 30009 · effective 2024-01-01 | State legislative upper chamber | 0.313500K: 0.319 | 0.800500K: 0.800 | 49.4middle or higher | stablePP difference 1.7% | 930.553 km10,614 vertices · 1 part · 0 holes |
| MT · State House District 60GEOID 30060 · effective 2024-01-01 | State legislative lower chamber | 0.313500K: 0.318 | 0.752500K: 0.752 | 45.0middle or higher | stablePP difference 1.4% | 355.711 km2,766 vertices · 1 part · 0 holes |
| MO · State House District 136GEOID 29136 · effective 2024-01-01 | State legislative lower chamber | 0.313500K: 0.326 | 0.716500K: 0.717 | 45.0middle or higher | stablePP difference 4.0% | 40.253 km1,203 vertices · 1 part · 0 holes |
| ND · State Senate District 23GEOID 38023 · effective 2024-01-01 | State legislative upper chamber | 0.313500K: 0.314 | 0.718500K: 0.718 | 49.4middle or higher | stablePP difference 0.3% | 141.77 km1,121 vertices · 1 part · 0 holes |
| ND · State House District 23GEOID 38023 · effective 2024-01-01 | State legislative lower chamber | 0.313500K: 0.314 | 0.718500K: 0.718 | 45.0middle or higher | stablePP difference 0.3% | 141.77 km1,121 vertices · 1 part · 0 holes |
| ID · State Senate District 9GEOID 16009 · effective 2024-01-01 | State legislative upper chamber | 0.313500K: 0.318 | 0.736500K: 0.736 | 49.5middle or higher | stablePP difference 1.4% | 464.445 km4,771 vertices · 1 part · 0 holes |
| ID · State House District 9GEOID 16009 · effective 2024-01-01 | State legislative lower chamber | 0.313500K: 0.318 | 0.736500K: 0.736 | 45.1middle or higher | stablePP difference 1.4% | 464.445 km4,771 vertices · 1 part · 0 holes |
| NM · State Senate District 25GEOID 35025 · effective 2024-01-01 | State legislative upper chamber | 0.313500K: 0.322 | 0.764500K: 0.764 | 49.5middle or higher | stablePP difference 2.8% | 207.831 km5,972 vertices · 1 part · 0 holes |
| MA · 8th Middlesex DistrictGEOID 25066 · effective 2024-01-01 | State legislative lower chamber | 0.313500K: 0.331 | 0.705500K: 0.706 | 45.1middle or higher | stablePP difference 5.4% | 86.374 km1,845 vertices · 1 part · 0 holes |
| MI · State House District 107GEOID 26107 · effective 2024-01-01 | State legislative lower chamber | 0.313500K: 0.044 | 0.683500K: 0.338 | 45.1middle or higher | resolution sensitivePP difference 86.1% | 714.306 km1,705 vertices · 1 part · 0 holes |
| MT · State House District 89GEOID 30089 · effective 2024-01-01 | State legislative lower chamber | 0.313500K: 0.321 | 0.655500K: 0.655 | 45.1middle or higher | stablePP difference 2.4% | 51.907 km556 vertices · 1 part · 0 holes |
| NE · Congressional District 3GEOID 3103 · effective 2024-01-01 | U.S. House | 0.313500K: 0.315 | 0.846500K: 0.846 | 68.2middle or higher | stablePP difference 0.4% | 2,695.663 km17,147 vertices · 1 part · 0 holes |
| NH · State House District Sullivan 03GEOID 33903 · effective 2024-01-01 | State legislative lower chamber | 0.313500K: 0.315 | 0.662500K: 0.661 | 45.2middle or higher | stablePP difference 0.4% | 111.031 km1,594 vertices · 1 part · 0 holes |
| NH · State Senate District 23GEOID 33023 · effective 2024-01-01 | State legislative upper chamber | 0.313500K: 0.319 | 0.655500K: 0.656 | 49.6middle or higher | stablePP difference 1.7% | 137.985 km1,418 vertices · 1 part · 0 holes |
| IL · State House District 70GEOID 17070 · effective 2024-01-01 | State legislative lower chamber | 0.313500K: 0.314 | 0.731500K: 0.731 | 45.2middle or higher | stablePP difference 0.2% | 209.47 km1,576 vertices · 1 part · 0 holes |
| AZ · Congressional District 5GEOID 0405 · effective 2024-01-01 | U.S. House | 0.314500K: 0.315 | 0.731500K: 0.731 | 68.4middle or higher | stablePP difference 0.5% | 205.276 km1,733 vertices · 1 part · 0 holes |
| MT · State Senate District 18GEOID 30018 · effective 2024-01-01 | State legislative upper chamber | 0.314500K: 0.319 | 0.819500K: 0.819 | 49.6middle or higher | stablePP difference 1.6% | 1,147.138 km11,964 vertices · 1 part · 0 holes |
| VT · Franklin-4 State House DistrictGEOID 50F-4 · effective 2024-01-01 | State legislative lower chamber | 0.314500K: 0.314 | 0.601500K: 0.601 | 45.2middle or higher | stablePP difference 0.2% | 102.177 km543 vertices · 1 part · 0 holes |
| KS · State Senate District 30GEOID 20030 · effective 2024-01-01 | State legislative upper chamber | 0.314500K: 0.316 | 0.706500K: 0.706 | 49.7middle or higher | stablePP difference 0.8% | 111.088 km1,219 vertices · 1 part · 0 holes |
| MA · 10th Suffolk DistrictGEOID 25132 · effective 2024-01-01 | State legislative lower chamber | 0.314500K: 0.326 | 0.754500K: 0.756 | 45.2middle or higher | stablePP difference 3.8% | 27.906 km706 vertices · 1 part · 0 holes |
| WA · Legislative (Senate) District 8GEOID 53008 · effective 2024-01-01 | State legislative upper chamber | 0.314500K: 0.317 | 0.784500K: 0.785 | 49.7middle or higher | stablePP difference 1.0% | 231.697 km1,803 vertices · 1 part · 0 holes |
| WA · Legislative (House) District 8GEOID 53008 · effective 2024-01-01 | State legislative lower chamber | 0.314500K: 0.317 | 0.784500K: 0.785 | 45.2middle or higher | stablePP difference 1.0% | 231.697 km1,803 vertices · 1 part · 0 holes |
| WI · State Senate District 26GEOID 55026 · effective 2024-01-01 | State legislative upper chamber | 0.314500K: 0.322 | 0.790500K: 0.790 | 49.8middle or higher | stablePP difference 2.7% | 83.546 km1,626 vertices · 1 part · 0 holes |
| IA · State Senate District 31GEOID 19031 · effective 2024-01-01 | State legislative upper chamber | 0.314500K: 0.322 | 0.760500K: 0.760 | 49.8middle or higher | stablePP difference 2.7% | 75.693 km1,211 vertices · 1 part · 0 holes |
| NM · State Senate District 9GEOID 35009 · effective 2024-01-01 | State legislative upper chamber | 0.314500K: 0.327 | 0.802500K: 0.802 | 49.9middle or higher | stablePP difference 4.2% | 123.277 km2,727 vertices · 1 part · 0 holes |
| MI · State House District 22GEOID 26022 · effective 2024-01-01 | State legislative lower chamber | 0.314500K: 0.314 | 0.756500K: 0.756 | 45.3middle or higher | stablePP difference 0.1% | 65.513 km775 vertices · 1 part · 0 holes |
| WV · Delegate District 48GEOID 54048 · effective 2024-01-01 | State legislative lower chamber | 0.314500K: 0.322 | 0.783500K: 0.784 | 45.3middle or higher | stablePP difference 2.6% | 307.439 km6,943 vertices · 1 part · 0 holes |
| WA · Legislative (Senate) District 28GEOID 53028 · effective 2024-01-01 | State legislative upper chamber | 0.314500K: 0.185 | 0.777500K: 0.683 | 49.9middle or higher | resolution sensitivePP difference 41.2% | 141.438 km2,210 vertices · 1 part · 0 holes |
| WA · Legislative (House) District 28GEOID 53028 · effective 2024-01-01 | State legislative lower chamber | 0.314500K: 0.185 | 0.777500K: 0.683 | 45.3middle or higher | resolution sensitivePP difference 41.2% | 141.438 km2,210 vertices · 1 part · 0 holes |
| AK · State Senate District NGEOID 0200N · effective 2024-01-01 | State legislative upper chamber | 0.314500K: 0.337 | 0.839500K: 0.839 | 50.0middle or higher | stablePP difference 6.9% | 90.288 km1,683 vertices · 1 part · 0 holes |
| MO · State House District 147GEOID 29147 · effective 2024-01-01 | State legislative lower chamber | 0.314500K: 0.333 | 0.776500K: 0.778 | 45.3middle or higher | stablePP difference 5.8% | 53.34 km945 vertices · 1 part · 0 holes |
| ME · State House District 89GEOID 23089 · effective 2024-01-01 | State legislative lower chamber | 0.314500K: 0.322 | 0.653500K: 0.654 | 45.3middle or higher | stablePP difference 2.6% | 14.017 km385 vertices · 1 part · 0 holes |
| TN · State House District 7GEOID 47007 · effective 2024-01-01 | State legislative lower chamber | 0.314500K: 0.324 | 0.843500K: 0.843 | 45.4middle or higher | stablePP difference 3.2% | 132.448 km3,251 vertices · 1 part · 0 holes |
| NM · State Senate District 40GEOID 35040 · effective 2024-01-01 | State legislative upper chamber | 0.314500K: 0.335 | 0.814500K: 0.815 | 50.0middle or higher | stablePP difference 6.4% | 173.551 km4,604 vertices · 1 part · 0 holes |
| KY · State Senate District 8GEOID 21008 · effective 2024-01-01 | State legislative upper chamber | 0.314500K: 0.322 | 0.681500K: 0.681 | 50.1middle or higher | stablePP difference 2.4% | 310.591 km3,296 vertices · 1 part · 0 holes |
| TX · State House District 73GEOID 48073 · effective 2024-01-01 | State legislative lower chamber | 0.314500K: 0.318 | 0.748500K: 0.748 | 45.4middle or higher | stablePP difference 1.3% | 312.256 km4,022 vertices · 1 part · 0 holes |
| WY · State House District 54GEOID 56054 · effective 2024-01-01 | State legislative lower chamber | 0.314500K: 0.342 | 0.779500K: 0.779 | 45.4middle or higher | stablePP difference 8.1% | 98 km2,954 vertices · 1 part · 0 holes |
| ME · State House District 13GEOID 23013 · effective 2024-01-01 | State legislative lower chamber | 0.314500K: 0.318 | 0.683500K: 0.683 | 45.4middle or higher | stablePP difference 1.2% | 121.515 km1,746 vertices · 1 part · 0 holes |
| AR · State House District 72GEOID 05072 · effective 2024-01-01 | State legislative lower chamber | 0.314500K: 0.320 | 0.684500K: 0.685 | 45.4middle or higher | stablePP difference 1.6% | 48.438 km825 vertices · 1 part · 0 holes |
| NC · State House District 21GEOID 37021 · effective 2024-01-01 | State legislative lower chamber | 0.314500K: 0.323 | 0.833500K: 0.833 | 45.5middle or higher | stablePP difference 2.8% | 88.004 km2,540 vertices · 1 part · 0 holes |
| ME · State House District 127GEOID 23127 · effective 2024-01-01 | State legislative lower chamber | 0.315500K: 0.327 | 0.649500K: 0.649 | 45.5middle or higher | stablePP difference 3.8% | 18.785 km219 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