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 1,501–1,600 of 7,272
| District | Type | Polsby–Popper | Convex hull | Relative percentile | Resolution check | Boundary detail |
|---|---|---|---|---|---|---|
| MD · State Legislative Subdistrict 38CGEOID 2438C · effective 2024-01-01 | State legislative lower chamber | 0.221500K: 0.189 | 0.699500K: 0.643 | 18.3lower quartile | stablePP difference 14.5% | 264.548 km2,773 vertices · 1 part · 0 holes |
| TX · State House District 116GEOID 48116 · effective 2024-01-01 | State legislative lower chamber | 0.221500K: 0.224 | 0.668500K: 0.668 | 18.3lower quartile | stablePP difference 1.1% | 76.852 km1,149 vertices · 1 part · 0 holes |
| KY · State House District 87GEOID 21087 · effective 2024-01-01 | State legislative lower chamber | 0.221500K: 0.236 | 0.687500K: 0.688 | 18.4lower quartile | stablePP difference 6.1% | 319.902 km4,947 vertices · 1 part · 0 holes |
| IL · State House District 89GEOID 17089 · effective 2024-01-01 | State legislative lower chamber | 0.222500K: 0.223 | 0.763500K: 0.763 | 18.4lower quartile | stablePP difference 0.5% | 588.983 km4,590 vertices · 1 part · 0 holes |
| TX · State House District 26GEOID 48026 · effective 2024-01-01 | State legislative lower chamber | 0.222500K: 0.224 | 0.651500K: 0.650 | 18.4lower quartile | stablePP difference 0.9% | 110.059 km1,344 vertices · 1 part · 0 holes |
| ID · State Senate District 2GEOID 16002 · effective 2024-01-01 | State legislative upper chamber | 0.222500K: 0.230 | 0.755500K: 0.755 | 23.3lower quartile | stablePP difference 3.8% | 1,001.755 km16,178 vertices · 1 part · 0 holes |
| ID · State House District 2GEOID 16002 · effective 2024-01-01 | State legislative lower chamber | 0.222500K: 0.230 | 0.755500K: 0.755 | 18.4lower quartile | stablePP difference 3.8% | 1,001.755 km16,178 vertices · 1 part · 0 holes |
| TX · State Senate District 12GEOID 48012 · effective 2024-01-01 | State legislative upper chamber | 0.222500K: 0.228 | 0.751500K: 0.751 | 23.3lower quartile | stablePP difference 2.5% | 485.186 km7,424 vertices · 1 part · 0 holes |
| AL · State House District 104GEOID 01104 · effective 2024-01-01 | State legislative lower chamber | 0.222500K: 0.228 | 0.575500K: 0.576 | 18.4lower quartile | stablePP difference 2.5% | 66.652 km1,191 vertices · 1 part · 0 holes |
| MI · State House District 25GEOID 26025 · effective 2024-01-01 | State legislative lower chamber | 0.222500K: 0.225 | 0.600500K: 0.600 | 18.4lower quartile | stablePP difference 1.4% | 64.326 km639 vertices · 1 part · 0 holes |
| WV · Delegate District 52GEOID 54052 · effective 2024-01-01 | State legislative lower chamber | 0.222500K: 0.231 | 0.688500K: 0.688 | 18.5lower quartile | stablePP difference 3.9% | 153.073 km2,517 vertices · 1 part · 0 holes |
| SC · State Senate District 24GEOID 45024 · effective 2024-01-01 | State legislative upper chamber | 0.222500K: 0.233 | 0.719500K: 0.719 | 23.4lower quartile | stablePP difference 4.7% | 263.695 km5,235 vertices · 1 part · 0 holes |
| GA · State Senate District 43GEOID 13043 · effective 2024-01-01 | State legislative upper chamber | 0.222500K: 0.230 | 0.714500K: 0.715 | 23.4lower quartile | stablePP difference 3.5% | 167.538 km4,851 vertices · 1 part · 0 holes |
| IL · State House District 9GEOID 17009 · effective 2024-01-01 | State legislative lower chamber | 0.222500K: 0.227 | 0.569500K: 0.570 | 18.5lower quartile | stablePP difference 2.3% | 35.681 km1,324 vertices · 1 part · 0 holes |
| NC · State Senate District 27GEOID 37027 · effective 2024-01-01 | State legislative upper chamber | 0.222500K: 0.230 | 0.693500K: 0.693 | 23.4lower quartile | stablePP difference 3.3% | 149.052 km3,116 vertices · 1 part · 0 holes |
| HI · State House District 46GEOID 15046 · effective 2024-01-01 | State legislative lower chamber | 0.222500K: 0.240 | 0.542500K: 0.635 | 18.5lower quartile | resolution sensitivePP difference 7.2% | 144.462 km2,485 vertices · 1 part · 0 holes |
| NY · State Senate District 22GEOID 36022 · effective 2024-01-01 | State legislative upper chamber | 0.222500K: 0.195 | 0.706500K: 0.690 | 23.5lower quartile | stablePP difference 12.2% | 40.118 km363 vertices · 1 part · 0 holes |
| KY · State House District 8GEOID 21008 · effective 2024-01-01 | State legislative lower chamber | 0.222500K: 0.233 | 0.753500K: 0.753 | 18.5lower quartile | stablePP difference 4.6% | 350.258 km6,536 vertices · 1 part · 0 holes |
| PR · State Senate District 3GEOID 72003 · effective 2024-01-01 | State legislative upper chamber | 0.222500K: 0.255 | 0.767500K: 0.770 | 23.6lower quartile | stablePP difference 12.7% | 261.18 km8,346 vertices · 32 parts · 0 holes |
| SC · State House District 41GEOID 45041 · effective 2024-01-01 | State legislative lower chamber | 0.222500K: 0.226 | 0.714500K: 0.714 | 18.6lower quartile | stablePP difference 1.6% | 363.087 km6,642 vertices · 1 part · 0 holes |
| SD · State Senate District 13GEOID 46013 · effective 2024-01-01 | State legislative upper chamber | 0.222500K: 0.236 | 0.665500K: 0.665 | 23.6lower quartile | stablePP difference 5.7% | 38.067 km570 vertices · 1 part · 0 holes |
| SD · State House District 13GEOID 46013 · effective 2024-01-01 | State legislative lower chamber | 0.222500K: 0.236 | 0.665500K: 0.665 | 18.6lower quartile | stablePP difference 5.7% | 38.067 km570 vertices · 1 part · 0 holes |
| WV · Delegate District 6GEOID 54006 · effective 2024-01-01 | State legislative lower chamber | 0.222500K: 0.229 | 0.663500K: 0.663 | 18.6lower quartile | stablePP difference 3.1% | 82.724 km2,429 vertices · 1 part · 0 holes |
| RI · State Senate District 10GEOID 44010 · effective 2024-01-01 | State legislative upper chamber | 0.222500K: 0.205 | 0.594500K: 0.486 | 23.7lower quartile | resolution sensitivePP difference 7.7% | 60.15 km1,181 vertices · 1 part · 0 holes |
| CA · Assembly District 71GEOID 06071 · effective 2024-01-01 | State legislative lower chamber | 0.222500K: 0.227 | 0.721500K: 0.721 | 18.6lower quartile | stablePP difference 2.1% | 283.736 km4,430 vertices · 1 part · 0 holes |
| GA · State House District 151GEOID 13151 · effective 2024-01-01 | State legislative lower chamber | 0.222500K: 0.237 | 0.710500K: 0.710 | 18.6lower quartile | stablePP difference 6.3% | 569.546 km8,200 vertices · 1 part · 0 holes |
| MO · State House District 22GEOID 29022 · effective 2024-01-01 | State legislative lower chamber | 0.223500K: 0.230 | 0.671500K: 0.671 | 18.7lower quartile | stablePP difference 3.3% | 46.896 km637 vertices · 1 part · 0 holes |
| MA · 26th Middlesex DistrictGEOID 25084 · effective 2024-01-01 | State legislative lower chamber | 0.223500K: 0.232 | 0.673500K: 0.672 | 18.7lower quartile | stablePP difference 4.1% | 19.481 km560 vertices · 1 part · 0 holes |
| OH · State House District 23GEOID 39023 · effective 2024-01-01 | State legislative lower chamber | 0.223500K: 0.138 | 0.827500K: 0.612 | 18.7lower quartile | resolution sensitivePP difference 38.1% | 236.992 km2,029 vertices · 1 part · 0 holes |
| WA · Legislative (Senate) District 41GEOID 53041 · effective 2024-01-01 | State legislative upper chamber | 0.223500K: 0.238 | 0.759500K: 0.760 | 23.7lower quartile | stablePP difference 6.3% | 93.355 km1,529 vertices · 1 part · 0 holes |
| WA · Legislative (House) District 41GEOID 53041 · effective 2024-01-01 | State legislative lower chamber | 0.223500K: 0.238 | 0.759500K: 0.760 | 18.7lower quartile | stablePP difference 6.3% | 93.355 km1,529 vertices · 1 part · 0 holes |
| AZ · State Senate District 6GEOID 04006 · effective 2024-01-01 | State legislative upper chamber | 0.223500K: 0.225 | 0.666500K: 0.666 | 23.8lower quartile | stablePP difference 1.2% | 2,376.488 km24,687 vertices · 1 part · 0 holes |
| AZ · State House District 6GEOID 04006 · effective 2024-01-01 | State legislative lower chamber | 0.223500K: 0.225 | 0.666500K: 0.666 | 18.7lower quartile | stablePP difference 1.2% | 2,376.488 km24,687 vertices · 1 part · 0 holes |
| KS · State House District 5GEOID 20005 · effective 2024-01-01 | State legislative lower chamber | 0.223500K: 0.233 | 0.538500K: 0.538 | 18.8lower quartile | stablePP difference 4.4% | 243.967 km3,890 vertices · 1 part · 0 holes |
| GA · State House District 133GEOID 13133 · effective 2024-01-01 | State legislative lower chamber | 0.223500K: 0.231 | 0.724500K: 0.724 | 18.8lower quartile | stablePP difference 3.5% | 504.854 km7,394 vertices · 1 part · 0 holes |
| KY · State House District 15GEOID 21015 · effective 2024-01-01 | State legislative lower chamber | 0.223500K: 0.234 | 0.727500K: 0.728 | 18.8lower quartile | stablePP difference 4.9% | 364.587 km4,570 vertices · 1 part · 0 holes |
| AL · State House District 12GEOID 01012 · effective 2024-01-01 | State legislative lower chamber | 0.223500K: 0.232 | 0.791500K: 0.791 | 18.8lower quartile | stablePP difference 3.9% | 247.239 km6,837 vertices · 1 part · 0 holes |
| MO · State House District 111GEOID 29111 · effective 2024-01-01 | State legislative lower chamber | 0.223500K: 0.231 | 0.767500K: 0.767 | 18.8lower quartile | stablePP difference 3.4% | 150.828 km2,560 vertices · 1 part · 0 holes |
| OH · Congressional District 7GEOID 3907 · effective 2024-01-01 | U.S. House | 0.223500K: 0.227 | 0.665500K: 0.666 | 34.8middle or higher | stablePP difference 1.6% | 439.901 km3,840 vertices · 1 part · 0 holes |
| MS · State House District 90GEOID 28090 · effective 2024-01-01 | State legislative lower chamber | 0.223500K: 0.226 | 0.671500K: 0.671 | 18.9lower quartile | stablePP difference 1.4% | 276.173 km4,394 vertices · 1 part · 0 holes |
| OH · State House District 11GEOID 39011 · effective 2024-01-01 | State legislative lower chamber | 0.223500K: 0.234 | 0.751500K: 0.751 | 18.9lower quartile | stablePP difference 4.5% | 98.14 km1,322 vertices · 1 part · 0 holes |
| OH · State House District 43GEOID 39043 · effective 2024-01-01 | State legislative lower chamber | 0.223500K: 0.234 | 0.698500K: 0.698 | 18.9lower quartile | stablePP difference 4.6% | 71.079 km1,803 vertices · 1 part · 0 holes |
| PA · State House District 41GEOID 42041 · effective 2024-01-01 | State legislative lower chamber | 0.223500K: 0.245 | 0.747500K: 0.748 | 18.9lower quartile | stablePP difference 8.9% | 84.408 km3,757 vertices · 3 parts · 0 holes |
| WV · Delegate District 94GEOID 54094 · effective 2024-01-01 | State legislative lower chamber | 0.224500K: 0.232 | 0.628500K: 0.629 | 18.9lower quartile | stablePP difference 3.9% | 56.687 km1,802 vertices · 1 part · 0 holes |
| GA · State Senate District 2GEOID 13002 · effective 2024-01-01 | State legislative upper chamber | 0.224500K: 0.232 | 0.728500K: 0.729 | 23.8lower quartile | stablePP difference 3.7% | 149.587 km2,381 vertices · 1 part · 0 holes |
| WY · State House District 32GEOID 56032 · effective 2024-01-01 | State legislative lower chamber | 0.224500K: 0.229 | 0.754500K: 0.754 | 19.0lower quartile | stablePP difference 2.3% | 34.29 km918 vertices · 1 part · 0 holes |
| SD · State Senate District 34GEOID 46034 · effective 2024-01-01 | State legislative upper chamber | 0.224500K: 0.233 | 0.760500K: 0.760 | 23.9lower quartile | stablePP difference 4.1% | 73.025 km1,742 vertices · 1 part · 0 holes |
| SD · State House District 34GEOID 46034 · effective 2024-01-01 | State legislative lower chamber | 0.224500K: 0.233 | 0.760500K: 0.760 | 19.0lower quartile | stablePP difference 4.1% | 73.025 km1,742 vertices · 1 part · 0 holes |
| WI · Assembly District 4GEOID 55004 · effective 2024-01-01 | State legislative lower chamber | 0.224500K: 0.275 | 0.652500K: 0.651 | 19.0lower quartile | stablePP difference 18.6% | 252.245 km6,635 vertices · 4 parts · 0 holes |
| MA · Congressional District 3GEOID 2503 · effective 2024-01-01 | U.S. House | 0.224500K: 0.228 | 0.670500K: 0.670 | 35.0middle or higher | stablePP difference 2.0% | 336.308 km4,475 vertices · 1 part · 0 holes |
| TN · State House District 37GEOID 47037 · effective 2024-01-01 | State legislative lower chamber | 0.224500K: 0.231 | 0.692500K: 0.692 | 19.0lower quartile | stablePP difference 2.9% | 107.312 km1,962 vertices · 1 part · 0 holes |
| TN · State House District 87GEOID 47087 · effective 2024-01-01 | State legislative lower chamber | 0.224500K: 0.226 | 0.576500K: 0.576 | 19.1lower quartile | stablePP difference 0.9% | 58.966 km1,645 vertices · 1 part · 0 holes |
| NH · State House District Strafford 15GEOID 33815 · effective 2024-01-01 | State legislative lower chamber | 0.224500K: 0.233 | 0.511500K: 0.512 | 19.1lower quartile | stablePP difference 4.0% | 20.416 km451 vertices · 1 part · 0 holes |
| MO · State House District 92GEOID 29092 · effective 2024-01-01 | State legislative lower chamber | 0.224500K: 0.233 | 0.628500K: 0.628 | 19.1lower quartile | stablePP difference 3.8% | 37.988 km1,088 vertices · 1 part · 0 holes |
| MA · 12th Middlesex DistrictGEOID 25070 · effective 2024-01-01 | State legislative lower chamber | 0.224500K: 0.236 | 0.734500K: 0.735 | 19.1lower quartile | stablePP difference 5.2% | 43.198 km1,269 vertices · 1 part · 0 holes |
| AL · State House District 26GEOID 01026 · effective 2024-01-01 | State legislative lower chamber | 0.224500K: 0.232 | 0.749500K: 0.749 | 19.1lower quartile | stablePP difference 3.2% | 152.658 km1,821 vertices · 1 part · 0 holes |
| MS · State Senate District 39GEOID 28039 · effective 2024-01-01 | State legislative upper chamber | 0.224500K: 0.228 | 0.756500K: 0.756 | 23.9lower quartile | stablePP difference 1.5% | 442.722 km5,693 vertices · 1 part · 0 holes |
| PA · State Senate District 20GEOID 42020 · effective 2024-01-01 | State legislative upper chamber | 0.224500K: 0.226 | 0.651500K: 0.651 | 24.0lower quartile | stablePP difference 0.9% | 624.493 km6,696 vertices · 1 part · 0 holes |
| OK · State House District 49GEOID 40049 · effective 2024-01-01 | State legislative lower chamber | 0.224500K: 0.229 | 0.710500K: 0.710 | 19.1lower quartile | stablePP difference 2.2% | 418.287 km4,198 vertices · 1 part · 0 holes |
| NM · State House District 66GEOID 35066 · effective 2024-01-01 | State legislative lower chamber | 0.224500K: 0.226 | 0.655500K: 0.655 | 19.2lower quartile | stablePP difference 0.6% | 828.281 km6,285 vertices · 1 part · 0 holes |
| NY · Congressional District 23GEOID 3623 · effective 2024-01-01 | U.S. House | 0.224500K: 0.211 | 0.674500K: 0.643 | 35.2middle or higher | stablePP difference 6.1% | 1,014.294 km7,727 vertices · 1 part · 0 holes |
| WV · Delegate District 35GEOID 54035 · effective 2024-01-01 | State legislative lower chamber | 0.224500K: 0.238 | 0.779500K: 0.779 | 19.2lower quartile | stablePP difference 5.8% | 254.976 km5,268 vertices · 1 part · 0 holes |
| NC · State House District 17GEOID 37017 · effective 2024-01-01 | State legislative lower chamber | 0.224500K: 0.245 | 0.730500K: 0.759 | 19.2lower quartile | stablePP difference 8.5% | 313.923 km7,252 vertices · 1 part · 0 holes |
| LA · State Senate District 18GEOID 22018 · effective 2024-01-01 | State legislative upper chamber | 0.225500K: 0.232 | 0.718500K: 0.718 | 24.0lower quartile | stablePP difference 3.1% | 242.076 km4,016 vertices · 1 part · 0 holes |
| CO · State House District 18GEOID 08018 · effective 2024-01-01 | State legislative lower chamber | 0.225500K: 0.231 | 0.628500K: 0.628 | 19.2lower quartile | stablePP difference 2.8% | 162.534 km2,694 vertices · 1 part · 0 holes |
| TX · Congressional District 8GEOID 4808 · effective 2024-01-01 | U.S. House | 0.225500K: 0.231 | 0.626500K: 0.626 | 35.5middle or higher | stablePP difference 2.8% | 659.761 km8,651 vertices · 1 part · 0 holes |
| MS · State House District 39GEOID 28039 · effective 2024-01-01 | State legislative lower chamber | 0.225500K: 0.234 | 0.776500K: 0.776 | 19.3lower quartile | stablePP difference 4.1% | 198.464 km5,762 vertices · 1 part · 0 holes |
| PA · State Senate District 26GEOID 42026 · effective 2024-01-01 | State legislative upper chamber | 0.225500K: 0.241 | 0.724500K: 0.725 | 24.1lower quartile | stablePP difference 6.8% | 88.435 km3,341 vertices · 1 part · 0 holes |
| ND · State Senate District 18GEOID 38018 · effective 2024-01-01 | State legislative upper chamber | 0.225500K: 0.227 | 0.691500K: 0.692 | 24.1lower quartile | stablePP difference 1.1% | 101.372 km1,512 vertices · 1 part · 0 holes |
| ND · State House District 18GEOID 38018 · effective 2024-01-01 | State legislative lower chamber | 0.225500K: 0.227 | 0.691500K: 0.692 | 19.3lower quartile | stablePP difference 1.1% | 101.372 km1,512 vertices · 1 part · 0 holes |
| AZ · Congressional District 6GEOID 0406 · effective 2024-01-01 | U.S. House | 0.225500K: 0.227 | 0.701500K: 0.701 | 35.7middle or higher | stablePP difference 1.0% | 1,409.637 km10,906 vertices · 1 part · 0 holes |
| IL · State House District 111GEOID 17111 · effective 2024-01-01 | State legislative lower chamber | 0.225500K: 0.229 | 0.630500K: 0.630 | 19.3lower quartile | stablePP difference 2.0% | 139.519 km1,732 vertices · 1 part · 0 holes |
| AR · State House District 93GEOID 05093 · effective 2024-01-01 | State legislative lower chamber | 0.225500K: 0.241 | 0.645500K: 0.645 | 19.3lower quartile | stablePP difference 6.6% | 357.331 km6,185 vertices · 1 part · 0 holes |
| MD · State Senate District 13GEOID 24013 · effective 2024-01-01 | State legislative upper chamber | 0.225500K: 0.233 | 0.650500K: 0.650 | 24.2lower quartile | stablePP difference 3.6% | 99.42 km2,749 vertices · 1 part · 0 holes |
| MD · State Legislative District 13GEOID 24013 · effective 2024-01-01 | State legislative lower chamber | 0.225500K: 0.233 | 0.650500K: 0.650 | 19.3lower quartile | stablePP difference 3.6% | 99.42 km2,749 vertices · 1 part · 0 holes |
| MI · State Senate District 1GEOID 26001 · effective 2024-01-01 | State legislative upper chamber | 0.225500K: 0.228 | 0.593500K: 0.591 | 24.2lower quartile | stablePP difference 1.5% | 101.256 km1,371 vertices · 1 part · 0 holes |
| MA · 9th Essex DistrictGEOID 25032 · effective 2024-01-01 | State legislative lower chamber | 0.225500K: 0.249 | 0.679500K: 0.681 | 19.4lower quartile | stablePP difference 9.5% | 47.884 km1,486 vertices · 1 part · 0 holes |
| NY · Assembly District 18GEOID 36018 · effective 2024-01-01 | State legislative lower chamber | 0.225500K: 0.231 | 0.568500K: 0.568 | 19.4lower quartile | stablePP difference 2.3% | 43.596 km758 vertices · 1 part · 0 holes |
| NY · Congressional District 15GEOID 3615 · effective 2024-01-01 | U.S. House | 0.225500K: 0.234 | 0.693500K: 0.694 | 35.9middle or higher | stablePP difference 4.0% | 53.491 km776 vertices · 1 part · 0 holes |
| TN · State House District 2GEOID 47002 · effective 2024-01-01 | State legislative lower chamber | 0.225500K: 0.233 | 0.698500K: 0.699 | 19.4lower quartile | stablePP difference 3.4% | 132.54 km3,694 vertices · 1 part · 0 holes |
| WV · State Senate District 15GEOID 54015 · effective 2024-01-01 | State legislative upper chamber | 0.226500K: 0.232 | 0.741500K: 0.741 | 24.3lower quartile | stablePP difference 2.9% | 395.536 km8,016 vertices · 1 part · 0 holes |
| WY · State Senate District 7GEOID 56007 · effective 2024-01-01 | State legislative upper chamber | 0.226500K: 0.231 | 0.633500K: 0.633 | 24.3lower quartile | stablePP difference 2.4% | 31.715 km709 vertices · 1 part · 0 holes |
| MS · State House District 58GEOID 28058 · effective 2024-01-01 | State legislative lower chamber | 0.226500K: 0.232 | 0.579500K: 0.580 | 19.4lower quartile | stablePP difference 2.8% | 74.32 km1,091 vertices · 1 part · 0 holes |
| ME · State Senate District 3GEOID 23003 · effective 2024-01-01 | State legislative upper chamber | 0.226500K: 0.227 | 0.664500K: 0.664 | 24.4lower quartile | stablePP difference 0.6% | 286.321 km3,573 vertices · 1 part · 0 holes |
| TN · State Senate District 4GEOID 47004 · effective 2024-01-01 | State legislative upper chamber | 0.226500K: 0.231 | 0.744500K: 0.744 | 24.4lower quartile | stablePP difference 2.2% | 366.111 km6,234 vertices · 1 part · 0 holes |
| OH · State Senate District 2GEOID 39002 · effective 2024-01-01 | State legislative upper chamber | 0.226500K: 0.109 | 0.633500K: 0.497 | 24.5lower quartile | resolution sensitivePP difference 51.7% | 543.259 km4,324 vertices · 1 part · 0 holes |
| NC · State Senate District 18GEOID 37018 · effective 2024-01-01 | State legislative upper chamber | 0.226500K: 0.233 | 0.644500K: 0.644 | 24.5lower quartile | stablePP difference 3.3% | 331.683 km7,125 vertices · 1 part · 0 holes |
| WV · Delegate District 62GEOID 54062 · effective 2024-01-01 | State legislative lower chamber | 0.226500K: 0.233 | 0.652500K: 0.652 | 19.4lower quartile | stablePP difference 2.9% | 352.351 km5,334 vertices · 1 part · 0 holes |
| AR · State Senate District 1GEOID 05001 · effective 2024-01-01 | State legislative upper chamber | 0.226500K: 0.248 | 0.832500K: 0.832 | 24.6lower quartile | stablePP difference 9.0% | 782.014 km24,087 vertices · 1 part · 0 holes |
| GA · State House District 169GEOID 13169 · effective 2024-01-01 | State legislative lower chamber | 0.226500K: 0.229 | 0.642500K: 0.642 | 19.5lower quartile | stablePP difference 1.4% | 427.53 km5,000 vertices · 1 part · 0 holes |
| MS · State House District 47GEOID 28047 · effective 2024-01-01 | State legislative lower chamber | 0.226500K: 0.236 | 0.723500K: 0.723 | 19.5lower quartile | stablePP difference 4.4% | 349.689 km7,357 vertices · 1 part · 0 holes |
| TX · State House District 125GEOID 48125 · effective 2024-01-01 | State legislative lower chamber | 0.226500K: 0.229 | 0.636500K: 0.638 | 19.5lower quartile | stablePP difference 1.3% | 80.526 km1,007 vertices · 1 part · 0 holes |
| MN · Congressional District 6GEOID 2706 · effective 2024-01-01 | U.S. House | 0.226500K: 0.228 | 0.643500K: 0.643 | 36.1middle or higher | stablePP difference 0.7% | 612.808 km6,843 vertices · 1 part · 0 holes |
| PA · State House District 136GEOID 42136 · effective 2024-01-01 | State legislative lower chamber | 0.226500K: 0.233 | 0.706500K: 0.708 | 19.5lower quartile | stablePP difference 3.0% | 78.756 km1,537 vertices · 1 part · 0 holes |
| VA · State House District 36GEOID 51036 · effective 2024-01-01 | State legislative lower chamber | 0.226500K: 0.234 | 0.702500K: 0.702 | 19.5lower quartile | stablePP difference 3.1% | 256.888 km7,445 vertices · 1 part · 0 holes |
| VA · State House District 78GEOID 51078 · effective 2024-01-01 | State legislative lower chamber | 0.226500K: 0.234 | 0.679500K: 0.681 | 19.6lower quartile | stablePP difference 3.4% | 59.816 km2,252 vertices · 1 part · 0 holes |
| ID · State Senate District 7GEOID 16007 · effective 2024-01-01 | State legislative upper chamber | 0.226500K: 0.233 | 0.680500K: 0.680 | 24.6lower quartile | stablePP difference 2.9% | 1,209.412 km19,324 vertices · 1 part · 0 holes |
| ID · State House District 7GEOID 16007 · effective 2024-01-01 | State legislative lower chamber | 0.226500K: 0.233 | 0.680500K: 0.680 | 19.6lower quartile | stablePP difference 2.9% | 1,209.412 km19,324 vertices · 1 part · 0 holes |
| PA · State House District 127GEOID 42127 · effective 2024-01-01 | State legislative lower chamber | 0.226500K: 0.251 | 0.642500K: 0.644 | 19.6lower quartile | stablePP difference 9.8% | 32.456 km931 vertices · 1 part · 1 hole |
| NC · State Senate District 9GEOID 37009 · effective 2024-01-01 | State legislative upper chamber | 0.226500K: 0.244 | 0.711500K: 0.722 | 24.7lower quartile | stablePP difference 7.1% | 760.758 km20,096 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