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 601–700 of 7,272
| District | Type | Polsby–Popper | Convex hull | Relative percentile | Resolution check | Boundary detail |
|---|---|---|---|---|---|---|
| TN · Congressional District 2GEOID 4702 · effective 2024-01-01 | U.S. House | 0.165500K: 0.169 | 0.633500K: 0.633 | 20.4lower quartile | stablePP difference 2.3% | 727.967 km11,117 vertices · 4 parts · 0 holes |
| IL · State Senate District 17GEOID 17017 · effective 2024-01-01 | State legislative upper chamber | 0.165500K: 0.166 | 0.517500K: 0.517 | 9.5lower decile | stablePP difference 0.6% | 248.949 km3,504 vertices · 1 part · 0 holes |
| TX · State House District 117GEOID 48117 · effective 2024-01-01 | State legislative lower chamber | 0.165500K: 0.169 | 0.568500K: 0.569 | 6.7lower decile | stablePP difference 2.3% | 134.432 km1,714 vertices · 1 part · 0 holes |
| IA · State Senate District 37GEOID 19037 · effective 2024-01-01 | State legislative upper chamber | 0.165500K: 0.174 | 0.793500K: 0.792 | 9.6lower decile | stablePP difference 4.7% | 77.715 km956 vertices · 1 part · 0 holes |
| MD · State Legislative Subdistrict 11AGEOID 2411A · effective 2024-01-01 | State legislative lower chamber | 0.166500K: 0.171 | 0.550500K: 0.551 | 6.7lower decile | stablePP difference 3.5% | 66.984 km1,936 vertices · 1 part · 0 holes |
| CA · Congressional District 5GEOID 0605 · effective 2024-01-01 | U.S. House | 0.166500K: 0.172 | 0.746500K: 0.746 | 20.7lower quartile | stablePP difference 3.6% | 1,399.509 km22,160 vertices · 1 part · 0 holes |
| KY · State House District 37GEOID 21037 · effective 2024-01-01 | State legislative lower chamber | 0.166500K: 0.171 | 0.537500K: 0.538 | 6.7lower decile | stablePP difference 3.1% | 92.99 km1,932 vertices · 1 part · 0 holes |
| MA · 4th Barnstable DistrictGEOID 25004 · effective 2024-01-01 | State legislative lower chamber | 0.166500K: 0.109 | 0.496500K: 0.390 | 6.7lower decile | resolution sensitivePP difference 34.0% | 189.656 km1,539 vertices · 1 part · 0 holes |
| SC · State House District 61GEOID 45061 · effective 2024-01-01 | State legislative lower chamber | 0.166500K: 0.171 | 0.590500K: 0.591 | 6.7lower decile | stablePP difference 2.8% | 75.718 km1,572 vertices · 1 part · 0 holes |
| GA · State Senate District 33GEOID 13033 · effective 2024-01-01 | State legislative upper chamber | 0.166500K: 0.177 | 0.663500K: 0.663 | 9.6lower decile | stablePP difference 6.4% | 124.09 km2,975 vertices · 1 part · 0 holes |
| PR · State House District 39GEOID 72039 · effective 2024-01-01 | State legislative lower chamber | 0.166500K: 0.186 | 0.572500K: 0.575 | 6.8lower decile | stablePP difference 10.6% | 59.357 km2,008 vertices · 1 part · 0 holes |
| NY · Assembly District 122GEOID 36122 · effective 2024-01-01 | State legislative lower chamber | 0.166500K: 0.179 | 0.604500K: 0.604 | 6.8lower decile | stablePP difference 7.3% | 437.003 km8,203 vertices · 1 part · 0 holes |
| SC · State House District 95GEOID 45095 · effective 2024-01-01 | State legislative lower chamber | 0.166500K: 0.172 | 0.579500K: 0.579 | 6.8lower decile | stablePP difference 3.1% | 277.291 km4,889 vertices · 1 part · 0 holes |
| WV · Delegate District 33GEOID 54033 · effective 2024-01-01 | State legislative lower chamber | 0.166500K: 0.179 | 0.647500K: 0.648 | 6.8lower decile | stablePP difference 7.1% | 213.264 km4,189 vertices · 1 part · 0 holes |
| RI · State House District 9GEOID 44009 · effective 2024-01-01 | State legislative lower chamber | 0.166500K: 0.179 | 0.516500K: 0.518 | 6.8lower decile | stablePP difference 6.9% | 14.575 km404 vertices · 1 part · 0 holes |
| CO · State House District 65GEOID 08065 · effective 2024-01-01 | State legislative lower chamber | 0.167500K: 0.171 | 0.558500K: 0.558 | 6.9lower decile | stablePP difference 2.9% | 229.409 km2,848 vertices · 1 part · 0 holes |
| OH · State House District 34GEOID 39034 · effective 2024-01-01 | State legislative lower chamber | 0.167500K: 0.175 | 0.716500K: 0.716 | 6.9lower decile | stablePP difference 4.7% | 119.84 km2,256 vertices · 1 part · 0 holes |
| TX · State House District 123GEOID 48123 · effective 2024-01-01 | State legislative lower chamber | 0.167500K: 0.171 | 0.558500K: 0.558 | 6.9lower decile | stablePP difference 2.5% | 92.191 km1,763 vertices · 1 part · 0 holes |
| SC · State Senate District 26GEOID 45026 · effective 2024-01-01 | State legislative upper chamber | 0.167500K: 0.169 | 0.604500K: 0.604 | 9.7lower decile | stablePP difference 1.4% | 253.412 km4,166 vertices · 1 part · 0 holes |
| MS · State Senate District 34GEOID 28034 · effective 2024-01-01 | State legislative upper chamber | 0.167500K: 0.171 | 0.642500K: 0.642 | 9.7lower decile | stablePP difference 2.7% | 421.979 km8,499 vertices · 1 part · 0 holes |
| IL · State Senate District 24GEOID 17024 · effective 2024-01-01 | State legislative upper chamber | 0.167500K: 0.173 | 0.609500K: 0.609 | 9.8lower decile | stablePP difference 3.8% | 128.892 km3,079 vertices · 1 part · 0 holes |
| OH · State House District 94GEOID 39094 · effective 2024-01-01 | State legislative lower chamber | 0.167500K: 0.169 | 0.624500K: 0.624 | 6.9lower decile | stablePP difference 1.4% | 530.903 km5,068 vertices · 1 part · 0 holes |
| KY · State Senate District 17GEOID 21017 · effective 2024-01-01 | State legislative upper chamber | 0.167500K: 0.172 | 0.617500K: 0.617 | 9.8lower decile | stablePP difference 3.1% | 357.551 km5,781 vertices · 1 part · 0 holes |
| NJ · State Senate District 26GEOID 34026 · effective 2024-01-01 | State legislative upper chamber | 0.167500K: 0.177 | 0.648500K: 0.649 | 9.9lower decile | stablePP difference 5.7% | 175.23 km6,335 vertices · 1 part · 0 holes |
| NJ · Assembly District 26GEOID 34026 · effective 2024-01-01 | State legislative lower chamber | 0.167500K: 0.177 | 0.648500K: 0.649 | 6.9lower decile | stablePP difference 5.7% | 175.23 km6,335 vertices · 1 part · 0 holes |
| AL · State House District 66GEOID 01066 · effective 2024-01-01 | State legislative lower chamber | 0.167500K: 0.187 | 0.532500K: 0.531 | 7.0lower decile | stablePP difference 10.4% | 459.966 km7,658 vertices · 1 part · 0 holes |
| MS · State House District 92GEOID 28092 · effective 2024-01-01 | State legislative lower chamber | 0.167500K: 0.173 | 0.664500K: 0.664 | 7.0lower decile | stablePP difference 3.4% | 346.554 km5,811 vertices · 1 part · 0 holes |
| GA · State House District 164GEOID 13164 · effective 2024-01-01 | State legislative lower chamber | 0.167500K: 0.175 | 0.658500K: 0.658 | 7.0lower decile | stablePP difference 4.6% | 253.761 km5,054 vertices · 1 part · 0 holes |
| PR · State Senate District 6GEOID 72006 · effective 2024-01-01 | State legislative upper chamber | 0.168500K: 0.358 | 0.823500K: 0.857 | 9.9lower decile | resolution sensitivePP difference 53.1% | 354.4 km16,091 vertices · 71 parts · 0 holes |
| LA · State Senate District 14GEOID 22014 · effective 2024-01-01 | State legislative upper chamber | 0.168500K: 0.170 | 0.544500K: 0.544 | 10.0lower decile | stablePP difference 1.7% | 115.251 km2,356 vertices · 1 part · 0 holes |
| KY · State House District 56GEOID 21056 · effective 2024-01-01 | State legislative lower chamber | 0.168500K: 0.172 | 0.742500K: 0.743 | 7.0lower decile | stablePP difference 2.3% | 242.008 km3,885 vertices · 1 part · 0 holes |
| OH · State House District 1GEOID 39001 · effective 2024-01-01 | State legislative lower chamber | 0.168500K: 0.177 | 0.643500K: 0.643 | 7.0lower decile | stablePP difference 5.2% | 73.703 km1,354 vertices · 1 part · 0 holes |
| CO · State House District 14GEOID 08014 · effective 2024-01-01 | State legislative lower chamber | 0.168500K: 0.171 | 0.508500K: 0.508 | 7.1lower decile | stablePP difference 1.7% | 90.945 km1,355 vertices · 1 part · 0 holes |
| WY · State House District 39GEOID 56039 · effective 2024-01-01 | State legislative lower chamber | 0.168500K: 0.173 | 0.558500K: 0.559 | 7.1lower decile | stablePP difference 2.8% | 65.954 km966 vertices · 1 part · 0 holes |
| NY · Assembly District 128GEOID 36128 · effective 2024-01-01 | State legislative lower chamber | 0.168500K: 0.171 | 0.681500K: 0.682 | 7.1lower decile | stablePP difference 1.9% | 154.873 km1,421 vertices · 1 part · 0 holes |
| IL · State Senate District 42GEOID 17042 · effective 2024-01-01 | State legislative upper chamber | 0.168500K: 0.172 | 0.575500K: 0.575 | 10.0lower quartile | stablePP difference 2.0% | 131.359 km2,516 vertices · 1 part · 0 holes |
| CO · State House District 31GEOID 08031 · effective 2024-01-01 | State legislative lower chamber | 0.168500K: 0.178 | 0.649500K: 0.650 | 7.1lower decile | stablePP difference 5.3% | 63.154 km1,042 vertices · 1 part · 0 holes |
| NY · Assembly District 13GEOID 36013 · effective 2024-01-01 | State legislative lower chamber | 0.168500K: 0.099 | 0.590500K: 0.441 | 7.1lower decile | resolution sensitivePP difference 41.1% | 133.389 km1,617 vertices · 1 part · 0 holes |
| NY · State Senate District 11GEOID 36011 · effective 2024-01-01 | State legislative upper chamber | 0.168500K: 0.151 | 0.551500K: 0.537 | 10.1lower quartile | stablePP difference 10.6% | 75.047 km1,017 vertices · 1 part · 0 holes |
| CA · Assembly District 32GEOID 06032 · effective 2024-01-01 | State legislative lower chamber | 0.168500K: 0.172 | 0.701500K: 0.702 | 7.2lower decile | stablePP difference 2.2% | 1,278.413 km13,901 vertices · 1 part · 0 holes |
| OH · State House District 21GEOID 39021 · effective 2024-01-01 | State legislative lower chamber | 0.169500K: 0.167 | 0.631500K: 0.621 | 7.2lower decile | stablePP difference 1.2% | 76.53 km688 vertices · 1 part · 0 holes |
| MO · State House District 107GEOID 29107 · effective 2024-01-01 | State legislative lower chamber | 0.169500K: 0.175 | 0.716500K: 0.716 | 7.2lower decile | stablePP difference 3.4% | 47.92 km1,102 vertices · 1 part · 0 holes |
| TX · State House District 107GEOID 48107 · effective 2024-01-01 | State legislative lower chamber | 0.169500K: 0.177 | 0.606500K: 0.607 | 7.2lower decile | stablePP difference 4.8% | 85.396 km2,050 vertices · 1 part · 0 holes |
| NC · Congressional District 14GEOID 3714 · effective 2024-01-01 | U.S. House | 0.169500K: 0.172 | 0.577500K: 0.577 | 20.9lower quartile | stablePP difference 2.2% | 656.524 km12,467 vertices · 1 part · 0 holes |
| VA · State House District 40GEOID 51040 · effective 2024-01-01 | State legislative lower chamber | 0.169500K: 0.178 | 0.592500K: 0.592 | 7.3lower decile | stablePP difference 5.1% | 102.242 km3,055 vertices · 1 part · 0 holes |
| TX · State House District 28GEOID 48028 · effective 2024-01-01 | State legislative lower chamber | 0.169500K: 0.173 | 0.667500K: 0.668 | 7.3lower decile | stablePP difference 2.4% | 285.332 km4,775 vertices · 1 part · 0 holes |
| IA · State House District 72GEOID 19072 · effective 2024-01-01 | State legislative lower chamber | 0.169500K: 0.177 | 0.699500K: 0.700 | 7.3lower decile | stablePP difference 4.6% | 107.316 km1,706 vertices · 1 part · 0 holes |
| CT · Congressional District 1GEOID 0901 · effective 2024-01-01 | U.S. House | 0.169500K: 0.171 | 0.659500K: 0.659 | 21.1lower quartile | stablePP difference 1.1% | 360.726 km3,950 vertices · 1 part · 0 holes |
| IL · State Senate District 15GEOID 17015 · effective 2024-01-01 | State legislative upper chamber | 0.169500K: 0.171 | 0.619500K: 0.620 | 10.1lower quartile | stablePP difference 1.0% | 229.092 km4,319 vertices · 1 part · 0 holes |
| MS · State Senate District 32GEOID 28032 · effective 2024-01-01 | State legislative upper chamber | 0.169500K: 0.177 | 0.697500K: 0.697 | 10.2lower quartile | stablePP difference 4.4% | 547.04 km11,687 vertices · 1 part · 0 holes |
| IL · State House District 113GEOID 17113 · effective 2024-01-01 | State legislative lower chamber | 0.169500K: 0.173 | 0.595500K: 0.595 | 7.3lower decile | stablePP difference 2.2% | 131.282 km1,687 vertices · 1 part · 0 holes |
| MD · State Legislative Subdistrict 47BGEOID 2447B · effective 2024-01-01 | State legislative lower chamber | 0.169500K: 0.180 | 0.575500K: 0.578 | 7.3lower decile | stablePP difference 6.0% | 29.305 km844 vertices · 1 part · 0 holes |
| TN · State House District 98GEOID 47098 · effective 2024-01-01 | State legislative lower chamber | 0.169500K: 0.173 | 0.551500K: 0.551 | 7.3lower decile | stablePP difference 2.2% | 72.739 km1,860 vertices · 1 part · 0 holes |
| OH · State House District 36GEOID 39036 · effective 2024-01-01 | State legislative lower chamber | 0.169500K: 0.178 | 0.719500K: 0.721 | 7.4lower decile | stablePP difference 4.7% | 89.873 km1,445 vertices · 1 part · 0 holes |
| MS · State Senate District 25GEOID 28025 · effective 2024-01-01 | State legislative upper chamber | 0.170500K: 0.174 | 0.694500K: 0.695 | 10.2lower quartile | stablePP difference 2.6% | 98.776 km1,641 vertices · 1 part · 0 holes |
| KY · State House District 81GEOID 21081 · effective 2024-01-01 | State legislative lower chamber | 0.170500K: 0.177 | 0.723500K: 0.723 | 7.4lower decile | stablePP difference 3.9% | 219.54 km5,645 vertices · 1 part · 0 holes |
| CA · Assembly District 58GEOID 06058 · effective 2024-01-01 | State legislative lower chamber | 0.170500K: 0.175 | 0.658500K: 0.658 | 7.4lower decile | stablePP difference 3.1% | 159.745 km3,183 vertices · 1 part · 0 holes |
| CT · State Senate District 9GEOID 09009 · effective 2024-01-01 | State legislative upper chamber | 0.170500K: 0.176 | 0.626500K: 0.626 | 10.3lower quartile | stablePP difference 3.3% | 111.319 km2,188 vertices · 1 part · 0 holes |
| GA · State House District 68GEOID 13068 · effective 2024-01-01 | State legislative lower chamber | 0.171500K: 0.182 | 0.713500K: 0.714 | 7.4lower decile | stablePP difference 6.4% | 113.189 km3,315 vertices · 1 part · 0 holes |
| IL · State Senate District 4GEOID 17004 · effective 2024-01-01 | State legislative upper chamber | 0.171500K: 0.175 | 0.506500K: 0.506 | 10.3lower quartile | stablePP difference 2.3% | 89.228 km3,052 vertices · 1 part · 0 holes |
| TX · State House District 66GEOID 48066 · effective 2024-01-01 | State legislative lower chamber | 0.171500K: 0.177 | 0.673500K: 0.674 | 7.5lower decile | stablePP difference 3.3% | 164.241 km3,240 vertices · 1 part · 0 holes |
| MT · State Senate District 16GEOID 30016 · effective 2024-01-01 | State legislative upper chamber | 0.171500K: 0.173 | 0.729500K: 0.729 | 10.4lower quartile | stablePP difference 1.4% | 1,295.366 km15,837 vertices · 1 part · 0 holes |
| CA · State Senate District 21GEOID 06021 · effective 2024-01-01 | State legislative upper chamber | 0.171500K: 0.187 | 0.576500K: 0.498 | 10.4lower quartile | resolution sensitivePP difference 8.4% | 1,171.959 km7,245 vertices · 4 parts · 0 holes |
| TX · State House District 121GEOID 48121 · effective 2024-01-01 | State legislative lower chamber | 0.171500K: 0.175 | 0.686500K: 0.686 | 7.5lower decile | stablePP difference 2.4% | 140.019 km2,884 vertices · 1 part · 0 holes |
| AL · State House District 62GEOID 01062 · effective 2024-01-01 | State legislative lower chamber | 0.171500K: 0.176 | 0.646500K: 0.646 | 7.5lower decile | stablePP difference 3.0% | 247.994 km5,549 vertices · 1 part · 0 holes |
| SC · State House District 24GEOID 45024 · effective 2024-01-01 | State legislative lower chamber | 0.171500K: 0.179 | 0.615500K: 0.616 | 7.5lower decile | stablePP difference 4.1% | 64.44 km1,730 vertices · 1 part · 0 holes |
| IL · State House District 112GEOID 17112 · effective 2024-01-01 | State legislative lower chamber | 0.171500K: 0.175 | 0.633500K: 0.634 | 7.5lower decile | stablePP difference 2.2% | 144.568 km2,357 vertices · 1 part · 0 holes |
| IL · State House District 76GEOID 17076 · effective 2024-01-01 | State legislative lower chamber | 0.171500K: 0.172 | 0.417500K: 0.417 | 7.5lower decile | stablePP difference 0.5% | 298.707 km2,257 vertices · 1 part · 0 holes |
| SC · State House District 102GEOID 45102 · effective 2024-01-01 | State legislative lower chamber | 0.171500K: 0.177 | 0.632500K: 0.632 | 7.6lower decile | stablePP difference 3.4% | 300.45 km5,725 vertices · 1 part · 0 holes |
| CA · Congressional District 18GEOID 0618 · effective 2024-01-01 | U.S. House | 0.171500K: 0.178 | 0.766500K: 0.766 | 21.4lower quartile | stablePP difference 3.6% | 935.253 km13,522 vertices · 1 part · 0 holes |
| TX · State Senate District 31GEOID 48031 · effective 2024-01-01 | State legislative upper chamber | 0.171500K: 0.174 | 0.584500K: 0.584 | 10.5lower quartile | stablePP difference 1.7% | 2,917.185 km17,768 vertices · 1 part · 0 holes |
| CT · State House District 101GEOID 09101 · effective 2024-01-01 | State legislative lower chamber | 0.171500K: 0.191 | 0.573500K: 0.574 | 7.6lower decile | stablePP difference 10.4% | 101.72 km2,598 vertices · 2 parts · 0 holes |
| IL · State House District 60GEOID 17060 · effective 2024-01-01 | State legislative lower chamber | 0.172500K: 0.197 | 0.568500K: 0.571 | 7.6lower decile | stablePP difference 12.8% | 80.143 km1,776 vertices · 1 part · 0 holes |
| TN · State House District 80GEOID 47080 · effective 2024-01-01 | State legislative lower chamber | 0.172500K: 0.177 | 0.647500K: 0.647 | 7.6lower decile | stablePP difference 3.1% | 411.663 km8,551 vertices · 1 part · 0 holes |
| WI · State Senate District 25GEOID 55025 · effective 2024-01-01 | State legislative upper chamber | 0.172500K: 0.204 | 0.707500K: 0.708 | 10.5lower quartile | stablePP difference 15.7% | 1,285.581 km28,823 vertices · 24 parts · 0 holes |
| TX · State House District 9GEOID 48009 · effective 2024-01-01 | State legislative lower chamber | 0.172500K: 0.184 | 0.784500K: 0.784 | 7.7lower decile | stablePP difference 6.3% | 1,016.086 km15,879 vertices · 1 part · 0 holes |
| TN · State House District 38GEOID 47038 · effective 2024-01-01 | State legislative lower chamber | 0.172500K: 0.175 | 0.660500K: 0.660 | 7.7lower decile | stablePP difference 1.6% | 543.357 km7,094 vertices · 1 part · 0 holes |
| CA · Assembly District 9GEOID 06009 · effective 2024-01-01 | State legislative lower chamber | 0.172500K: 0.177 | 0.720500K: 0.720 | 7.7lower decile | stablePP difference 2.8% | 669.164 km9,319 vertices · 1 part · 0 holes |
| CA · Assembly District 47GEOID 06047 · effective 2024-01-01 | State legislative lower chamber | 0.172500K: 0.175 | 0.727500K: 0.727 | 7.7lower decile | stablePP difference 1.6% | 720.653 km8,654 vertices · 1 part · 0 holes |
| NJ · State Senate District 11GEOID 34011 · effective 2024-01-01 | State legislative upper chamber | 0.172500K: 0.187 | 0.565500K: 0.604 | 10.6lower quartile | stablePP difference 7.6% | 189.846 km6,813 vertices · 1 part · 0 holes |
| NJ · Assembly District 11GEOID 34011 · effective 2024-01-01 | State legislative lower chamber | 0.172500K: 0.187 | 0.565500K: 0.604 | 7.7lower decile | stablePP difference 7.6% | 189.846 km6,813 vertices · 1 part · 0 holes |
| VA · State House District 75GEOID 51075 · effective 2024-01-01 | State legislative lower chamber | 0.172500K: 0.193 | 0.660500K: 0.660 | 7.8lower decile | stablePP difference 10.6% | 139.264 km7,588 vertices · 1 part · 0 holes |
| LA · State House District 81GEOID 22081 · effective 2024-01-01 | State legislative lower chamber | 0.172500K: 0.179 | 0.666500K: 0.667 | 7.8lower decile | stablePP difference 3.5% | 290.198 km5,876 vertices · 1 part · 0 holes |
| PA · Congressional District 4GEOID 4204 · effective 2024-01-01 | U.S. House | 0.173500K: 0.176 | 0.684500K: 0.684 | 21.6lower quartile | stablePP difference 2.1% | 371.719 km6,815 vertices · 1 part · 0 holes |
| GA · State House District 125GEOID 13125 · effective 2024-01-01 | State legislative lower chamber | 0.173500K: 0.188 | 0.719500K: 0.719 | 7.8lower decile | stablePP difference 8.0% | 244.875 km7,383 vertices · 1 part · 0 holes |
| AR · State House District 59GEOID 05059 · effective 2024-01-01 | State legislative lower chamber | 0.173500K: 0.181 | 0.660500K: 0.660 | 7.8lower decile | stablePP difference 4.4% | 240.641 km6,208 vertices · 1 part · 0 holes |
| LA · State House District 71GEOID 22071 · effective 2024-01-01 | State legislative lower chamber | 0.173500K: 0.179 | 0.640500K: 0.640 | 7.8lower decile | stablePP difference 3.6% | 104.775 km2,544 vertices · 1 part · 0 holes |
| AZ · State Senate District 30GEOID 04030 · effective 2024-01-01 | State legislative upper chamber | 0.173500K: 0.176 | 0.609500K: 0.609 | 10.6lower quartile | stablePP difference 1.5% | 1,836.605 km18,463 vertices · 1 part · 0 holes |
| AZ · State House District 30GEOID 04030 · effective 2024-01-01 | State legislative lower chamber | 0.173500K: 0.176 | 0.609500K: 0.609 | 7.9lower decile | stablePP difference 1.5% | 1,836.605 km18,463 vertices · 1 part · 0 holes |
| FL · State House District 117GEOID 12117 · effective 2024-01-01 | State legislative lower chamber | 0.173500K: 0.175 | 0.449500K: 0.449 | 7.9lower decile | stablePP difference 1.0% | 76.558 km774 vertices · 1 part · 0 holes |
| TN · State House District 9GEOID 47009 · effective 2024-01-01 | State legislative lower chamber | 0.173500K: 0.178 | 0.762500K: 0.762 | 7.9lower decile | stablePP difference 2.6% | 401.35 km8,210 vertices · 1 part · 0 holes |
| LA · State House District 19GEOID 22019 · effective 2024-01-01 | State legislative lower chamber | 0.173500K: 0.178 | 0.735500K: 0.735 | 7.9lower decile | stablePP difference 2.5% | 639.346 km8,374 vertices · 1 part · 0 holes |
| ME · State Senate District 26GEOID 23026 · effective 2024-01-01 | State legislative upper chamber | 0.173500K: 0.182 | 0.674500K: 0.675 | 10.7lower quartile | stablePP difference 4.8% | 165.177 km3,448 vertices · 2 parts · 0 holes |
| MS · State House District 88GEOID 28088 · effective 2024-01-01 | State legislative lower chamber | 0.173500K: 0.178 | 0.679500K: 0.680 | 7.9lower decile | stablePP difference 2.3% | 288.646 km4,643 vertices · 1 part · 0 holes |
| WI · Congressional District 3GEOID 5503 · effective 2024-01-01 | U.S. House | 0.173500K: 0.175 | 0.592500K: 0.592 | 21.8lower quartile | stablePP difference 0.8% | 1,470.409 km11,927 vertices · 1 part · 0 holes |
| AL · State Senate District 21GEOID 01021 · effective 2024-01-01 | State legislative upper chamber | 0.173500K: 0.181 | 0.631500K: 0.631 | 10.7lower quartile | stablePP difference 3.9% | 504.824 km7,716 vertices · 1 part · 0 holes |
| SC · State House District 120GEOID 45120 · effective 2024-01-01 | State legislative lower chamber | 0.174500K: 0.171 | 0.635500K: 0.636 | 8.0lower decile | stablePP difference 1.3% | 191.765 km3,174 vertices · 1 part · 0 holes |
| OH · State House District 52GEOID 39052 · effective 2024-01-01 | State legislative lower chamber | 0.174500K: 0.185 | 0.736500K: 0.736 | 8.0lower decile | stablePP difference 6.1% | 126.904 km1,120 vertices · 1 part · 0 holes |
| CA · Congressional District 2GEOID 0602 · effective 2024-01-01 | U.S. House | 0.174500K: 0.154 | 0.613500K: 0.600 | 22.1lower quartile | stablePP difference 11.1% | 1,654.4 km16,670 vertices · 1 part · 0 holes |
| CA · Assembly District 5GEOID 06005 · effective 2024-01-01 | State legislative lower chamber | 0.174500K: 0.180 | 0.705500K: 0.705 | 8.0lower decile | stablePP difference 3.5% | 369.989 km11,324 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