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Florida State Senate District 21

Florida State Senate District 21

Florida · Latest: 2024↓ R+11.5 vs 2020

Safe Republican — shifted 11.5pp toward Republicans in 2024 — 535K residents

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Florida State Senate District 21 is a state senate district that has a population of 535,030. In the 2024 presidential election, it voted Republican with a margin of R+20.2. Akashic Edge tracks 5 presidential elections here, dating back to 2008.

Florida State Senate District 21 Presidential Election Results, 2008–2024
YearDem %Rep %MarginSwing
202439.3%59.4%R+20.2R+11.5
2020*45.2%53.8%R+8.6D+7.0
2016*39.9%55.4%R+15.6R+11.0
2012*47.7%52.3%R+4.6R+4.6
2008*49.4%49.4%Even—

* Pre-2022 results projected onto current district boundaries. Actual boundaries at the time of the election may have differed.

Political Identity

What defines FL-SD-21?

It has a working-class, predominantly white electorate — strong Republican base territory.

Similarity Explorer

Similar state senate districts

Nearest neighbors matched on the same place-page feature set used across the dossier system.
8 visible matches
Historian Query

Ask the Historian

Explore FL-SD-21's political evolution with the Historian
Automated Readout

Key Insights

High-confidence patterns distilled from this geography's election history.
  • Has voted Republican in the last 5 presidential elections
  • Latest election (2024) was a Republican landslide with a 20.2% margin
  • The 2008 election was decided by just 0.0 points — razor-thin
Race & Ancestry

Who Lives Here

A race-first Census view with ancestry expansion where source coverage is strong enough to support detail.
FL-SD-21Census ACS 2024
Census race profile
Major Census race and ethnicity groups shown as a share of total population.
Expand rows for ancestry detail
White (Non-Hispanic) 76.0%Hispanic 12.3%Black 4.7%Multiracial 4.0%Asian 2.5%Native American 0.4%
GroupFL-SD-21StateNational
White (Non-Hispanic)
76.0%50.4%57.4%
Hispanic / Latino
12.3%27.4%19.3%
Black / African American
4.7%15.1%12.2%
Multiracial / Other
4.0%3.7%4.0%
Asian
2.5%2.9%6.0%
Native American / Alaska Native
0.4%0.3%0.9%
Native Hawaiian / Pacific Islander
0.1%0.1%0.2%
Method notes

Census treats race and Hispanic/Latino origin as separate questions. Race categories other than Hispanic reflect total populations (small Hispanic overlap in Black, Asian, AIAN, NHPI). “Multiracial / Other” is derived as a non-overlapping remainder.

Detailed ancestry data unavailable for this geography.

Who lives in Florida State Senate District 21? 535,030 residents as of the 2020 Census.

Demographic Comparison

Demographics

Read this geography's profile in three layers: local, state (where available), and national baseline.
FL-SD-21 vs Florida vs National535K residents
Population & electorate

Scale, voting-age share, and this geography's footprint inside the national electorate.

Total population
Local vs state vs U.S.
535K
local
535KState 22.4MNational 334.9M
Share of U.S. population
Local vs state vs U.S.
0.16%
local
0.16%National 100%
Voting-age population
Local vs state vs U.S.
82.8%
local
82.8%State 78.4%National 75.7%
Economic profile

Income, attainment, and ownership indicators that often shape coalition structure and turnout behavior.

Median household income
Local vs state vs U.S.
N/A
local
N/AState $75,325National $83,960
Poverty rate
Local vs state vs U.S.
N/A
local
N/AState 12.6%National 12.5%
College degree
Local vs state vs U.S.
N/A
local
N/AState 34.2%National 35.6%
Homeownership
Local vs state vs U.S.
N/A
local
N/AState 67.6%National 65.2%
Community profile

Age structure, language use, and nativity signals that explain how this geography differs from state and nation.

Median age
Local vs state vs U.S.
N/A
local
N/AState 43.1 yrsNational 39.1 yrs
Age 18–29
Local vs state vs U.S.
N/A
local
N/AState 14.2%National 15.7%
Age 65+
Local vs state vs U.S.
N/A
local
N/AState 21.3%National 17.0%
Foreign born
Local vs state vs U.S.
N/A
local
N/AState 21.9%National 14.1%
Non-English at home
Local vs state vs U.S.
N/A
local
N/AState 30.6%National 22.2%
English only
Local vs state vs U.S.
N/A
local
N/AState 69.4%National 77.8%
Voter Turnout

Turnout in FL-SD-21

Estimated using 2020 Census voting-age population.
2024 Turnout
67.1%
vs Previous
-31.1pp
Voting-Age Pop
443,267
History
2008–2024
Competitiveness

How competitive is FL-SD-21?

Likely RAvg margin: R+14.8 (last 3 elections)
2008
R+0.0
2012
R+4.6
2016
R+15.6
2020
R+8.6
2024
R+20.2
Elasticity
20.1pp
margin range
Party Flips
0
last 30 years
5-Elec Avg
R+9.8

Other Florida State Senate Districts

39 total
NameMargin ↓
FL-SD-32D+39.1
FL-SD-34D+38.8
FL-SD-16D+25.7
FL-SD-15D+23.3
FL-SD-05D+16.6
FL-SD-17D+10.9
FL-SD-24D+10.1
FL-SD-35D+9.2
FL-SD-30D+8.4
FL-SD-26D+5.7
FL-SD-25D+2.7
FL-SD-37R+1.3
FL-SD-10R+1.6
FL-SD-03R+4.4
FL-SD-14R+7.4
FL-SD-18R+9.5
FL-SD-38R+10.3
FL-SD-12R+15.6
FL-SD-36R+16.1
FL-SD-23R+17.5
FL-SD-22R+18.0
FL-SD-31R+18.1
FL-SD-13R+18.3
FL-SD-20R+18.9
FL-SD-19R+19.5
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