Florida's 21st congressional district (FL-21)
Florida's 21st congressional district (FL-21) covers parts or all of Martin County, St. Lucie County and Palm Beach County, and 38 ZIP codes (29 wholly inside it). Its 2020 population was 769,221. This is the map in force for the November 3, 2026 election.
Who represents FL-21
| Office | Member | Contact |
|---|---|---|
| U.S. Representative (FL-21) | Brian J. Mast (R) | 202-225-3026 |
| U.S. Senator | Ashley Moody (R) | 202-224-3041 |
| U.S. Senator | Rick Scott (R) | 202-224-5274 · contact form |
Elected in 2024 under FL's previous congressional map; this district's lines changed for the 120th Congress (seated January 3, 2027).
Officials serving now (members of Congress until January 3, 2027). Sources: Members of Congress: the @unitedstates project, congress-legislators (CC0).
Counties
| County | Share of the county's residents in FL-21 |
|---|---|
| Martin County | 100% |
| St. Lucie County | 100% |
| Palm Beach County | 19% |
ZIP codes
Percentages mark ZIPs only partly in FL-21: the share of that ZIP's residents inside it.
- 33403 (98%)
- 33404 (20%)
- 33407 (<0.1%)
- 33408
- 33410
- 33411 (51%)
- 33412
- 33413 (9.5%)
- 33418
- 33438 (6.6%)
- 33455
- 33458
- 33469
- 33470 (55%)
- 33477
- 33478
- 34945
- 34946
- 34947
- 34949
- 34950
- 34951
- 34952
- 34953
- 34956
- 34957
- 34972 (0.2%)
- 34974 (1.8%)
- 34981
- 34982
- 34983
- 34984
- 34986
- 34987
- 34990
- 34994
- 34996
- 34997
Towns
Fort Pierce CCD, Hutchinson Island CCD, Indiantown CCD, Jupiter CCD, Port Salerno-Hobe Sound CCD, Port St. Lucie CCD, Stuart CCD, West St. Lucie CCD, Western Community CCD, Riviera Beach CCD, Royal Palm Beach-West Jupiter CCD and West Palm Beach CCD.
Get this in your AI agent
Your agent can draw every precinct in FL-21, or list them with population shares (related_geographies). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
get_boundaries(id="us:congressional_district:1221", children_level="precinct", include_districts=True)