Florida / FL-21
Florida District 21
Score
Irregularity score 23 CompactLess compact than 17% of other congressional districts.
357th least compact of 429 nationally, 18th of 28 in Florida.
A score describes shape, not intent. Coastlines, rivers and the Voting Rights Act can all make a district irregular. How scores work
The three measures
- Polsby-Popper
- 0.48at least as compact as 95% of districts on this measure
Area compared with perimeter. Low for jagged or snaking edges.
- Reock
- 0.58at least as compact as 76% of districts on this measure
Area compared with the smallest circle around the district, counting only land. Low for stretched shapes.
- Convex hull
- 0.81at least as compact as 60% of districts on this measure
Area compared with a rubber band stretched around the district, counting only land. Low for bites and tentacles.
Each measure runs from 0 to 1, where 1 is a perfect circle or a shape with no dents.
The state's edge
28% of this district's border is the state's edge: a coastline, a national border or a state line. Mapmakers don't choose those lines. A ragged one, like a coastline or a river, lowers Polsby-Popper. Reock and convex hull count only the state's own land, so water and neighboring states don't count against them. More on the state's edge
New lines for 2026
Florida used a different map in the 2026 election than in 2024: the 2026 congressional plan (HB 1-D; plan EOGPCRP2026). Source: Florida Senate
Cities and towns
The largest places with people in this district, from the 2020 Census. A place split between districts shows how many of its residents live in this one.
- Port St. Lucie cityall 204,851 residents
- Jupiter townall 61,047 residents
- Palm Beach Gardens cityall 59,182 residents
- Fort Pierce cityall 47,297 residents
- The Acreage community27,349 of its 41,654 residents
- Palm City communityall 25,883 residents
- Stuart cityall 17,425 residents
- West Palm Beach city16,240 of its 117,415 residents
- Hobe Sound communityall 13,163 residents
- North Palm Beach villageall 13,162 residents
And 27 smaller places. 18% of this district's people live outside any city, town or named community. How places are counted
ZIP codes
38 ZIP codes have residents in this district. 10 of them are split with other districts. A percentage is the share of that ZIP code's 2020 residents who live here.
- 33403 (98%)
- 33404 (20%)
- 33407 (1%)
- 33408
- 33410 (99%)
- 33411 (51%)
- 33412
- 33413 (10%)
- 33418
- 33438 (7%)
- 33455
- 33458
- 33469
- 33470 (55%)
- 33477
- 33478
- 34945
- 34946
- 34947
- 34949
- 34950
- 34951
- 34952
- 34953
- 34956
- 34957
- 34972 (1%)
- 34974 (2%)
- 34981
- 34982
- 34983
- 34984
- 34986
- 34987
- 34990
- 34994
- 34996
- 34997
These are the Census Bureau's ZIP code areas, which match residential ZIP codes closely. ZIP codes used only for PO boxes or a single organization aren't included. How ZIP codes are matched
2024 presidential vote
Florida drew new lines for 2026, and no 2024 results have been published for them. Where the votes come from
U.S. House
Brian Mast, Republican
Elected November 3, 2026, takes office January 3, 2027.
Unofficial results from the Florida Division of Elections, checked November 6, 2026. A race shows a winner once news decision desks have called it. Results become official when the state certifies them. Where this comes from
Florida's senators
- Ashley Moody, RepublicanRe-elected November 3, 2026.
- Rick Scott, Republican
Senators are elected by the whole state, so district lines don't change who they are. Senators serving as of November 6, 2026. Senators elected in November 2026 take office January 3, 2027. Where this comes from
Where it sits in Florida
- Very compact (0 to 19)
- Compact (20 to 39)
- Middle (40 to 59)
- Irregular (60 to 79)
- Very irregular (80 to 100)
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