Religious adherence is published only at the county level (U.S. Religion Census). See St. Lucie County.
American Community Survey 2024 5-year (income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024.
Congressional elections · 17 House races · 17 Senate races
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
Akashic
Source · MIT Election Lab (MEDSL), House. CC-BY 4.0.
Year
District
Won
Democratic
Republican
Total
2024
21
R
38.2%171,312
61.8%277,435
448,766
2022
21
R
36.5%119,891
63.5%208,614
328,505
2020
21
D
59.0%237,925
39.1%157,612
403,093
2018
21
D
100.0%1
0.0%0
1
2016
21
D
62.7%210,606
35.1%118,038
335,861
2014
21
D
99.6%153,395
0.0%0
153,970
2012
21
D
77.8%221,263
0.0%0
284,400
2010
21
R
0.0%0
100.0%1
1
2008
21
R
42.1%99,776
57.9%137,226
237,002
2006
21
R
40.5%45,522
59.5%66,784
112,306
2004
21
R
0.0%0
72.8%146,507
201,243
2002
21
R
0.0%0
100.0%1
1
2000
21
R
0.0%0
100.0%132,317
132,342
1998
21
R
25.2%28,378
74.8%84,018
112,396
1996
21
R
0.0%0
100.0%125,469
125,473
1994
21
R
0.0%0
100.0%90,951
90,953
1992
21
R
0.0%0
100.0%1
1
U.S. Senate
Akashic
Source · MIT Election Lab (MEDSL), Senate. CC-BY 4.0.
Year
Won
Democratic
Republican
Total
2024
R
42.8%4,603,077
55.6%5,977,706
10,757,428
2022
R
41.3%3,201,522
57.7%4,474,847
7,758,014
2018
R
49.9%4,089,472
50.1%4,099,505
8,188,977
2016
R
44.3%4,122,088
52.0%4,835,191
9,301,716
2012
D
55.2%4,523,451
42.2%3,458,267
8,189,905
2010
R
20.2%1,092,936
48.9%2,645,743
5,411,016
2006
D
60.3%2,890,548
38.1%1,826,127
4,793,440
2004
R
48.3%3,590,201
49.4%3,672,864
7,429,707
2000
D
51.0%2,989,487
46.2%2,705,348
5,856,643
1998
D
62.5%2,436,407
37.5%1,463,755
3,900,162
1994
R
29.5%1,210,577
70.5%2,895,200
4,105,777
1992
D
65.4%3,245,565
34.6%1,716,505
4,962,070
1988
R
49.6%2,016,553
50.4%2,051,071
4,067,624
1986
D
54.7%1,877,543
45.3%1,552,376
3,429,919
1982
D
61.7%1,637,667
38.3%1,015,330
2,652,997
1980
R
48.3%1,705,409
51.7%1,822,460
3,527,869
1976
D
63.0%1,799,518
37.0%1,057,886
2,857,534
Florida's 21st congressional district, as drawn for the 2026 elections, takes in St. Lucie and Martin counties and parts of Palm Beach. About 769,200 people live within its 2026 boundaries, with a median age of 48.2.
Measured on those boundaries, the district has voted Republican in every presidential election since 2012, by widening margins. The margin was R+4.7 in 2012, R+9.7 in 2016, R+8.8 in 2020, and R+16.2 in 2024.
Across the recorded series it reached a Democratic high of 2.4 points in 2008 and a Republican high of 16.2 points in 2024. Between 2020 and 2024 the district moved 7.3 points toward the Republican candidate; the 2024 margin was 16.2 points.
A population of 769,221, a 67% non-Hispanic-white share, and a median household income of $82,154 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 17 and Congressional District 19.
Akashic
Political twins — districts
The congressional districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Florida 21st Congressional District. Akashic. https://akashic.app/cd/1221/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Embed this page
A live widget for your site — no API key, attribution built in, CC BY 4.0. All widgets & sizes →
How did Florida 21st Congressional District vote in 2024?
In 2024, Florida 21st Congressional District voted Republican by 16.2 points (R+16.2), carried by the Republican candidate. Out of 451,599 votes cast, 186,729 went Democratic and 259,775 went Republican.
When did Florida 21st Congressional District last vote Democratic?
The most recent presidential election in which Florida 21st Congressional District voted Democratic was 2008.
How many people live in Florida 21st Congressional District?
Florida 21st Congressional District has a population of 769,221 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Florida 21st Congressional District?
Median household income in Florida 21st Congressional District is $82,154 — above the national median of $80,734. The Florida state median is $74,568.
What is the political history of Florida 21st Congressional District?
Akashic tracks 5 presidential elections in Florida 21st Congressional District from 2008 to 2024. Of those, 1 went Democratic and 4 went Republican.