Florida State Senate District 21

State Legislative District Profile (Upper Chamber)

Overview

District ID
fl-sd-021
State
Florida
Chamber
Upper chamber (state senate)
District Code
021
Land Area
245.2 sq mi
Water Area
410.1 sq mi

Boundary

Boundary of Florida State Senate District 21

Boundary as GeoJSON

Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.

Counties

CountyOverlapShare of district landShare of county land
Pasco County134.60 sq mi54.9%18.0%
Pinellas County110.62 sq mi45.1%40.4%

Showing all 2 counties

Places

PlaceOverlapShare of district landShare of place land
East Lake CDP28.71 sq mi11.7%100.0%
Clearwater city19.94 sq mi8.1%76.2%
Palm Harbor CDP17.34 sq mi7.1%99.9%
Dunedin city10.41 sq mi4.2%98.3%
Tarpon Springs city9.13 sq mi3.7%98.6%
Oldsmar city8.94 sq mi3.6%100.0%
Moon Lake CDP5.68 sq mi2.3%94.9%
Holiday CDP5.32 sq mi2.2%99.5%
Safety Harbor city4.92 sq mi2.0%100.0%
New Port Richey city4.55 sq mi1.9%99.2%
Trinity CDP4.47 sq mi1.8%72.3%
River Ridge CDP4.19 sq mi1.7%100.0%
New Port Richey East CDP3.75 sq mi1.5%98.6%
Bayonet Point CDP3.68 sq mi1.5%64.7%
Elfers CDP3.55 sq mi1.4%95.3%
Jasmine Estates CDP3.55 sq mi1.4%97.7%
Odessa CDP3.32 sq mi1.4%61.9%
Port Richey city2.22 sq mi0.9%99.9%
Beacon Square CDP2.00 sq mi0.8%98.8%
Belleair town1.73 sq mi0.7%100.0%
Key Vista CDP0.76 sq mi0.3%100.0%
Greenbriar CDP0.60 sq mi0.2%100.0%

Showing all 22 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
FL District 13303,88056.8%39.5%45.1%
FL District 12231,32543.2%30.1%54.9%
FL District 1500.0%0.0%<0.1%

Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).

Voters

Registered Voters
412,649
Active Voters
343,637 (83.3%)

Party Registration

PartyVotersShare
Democratic107,30326.0%
Republican172,48641.8%
Unaffiliated118,16028.6%
Other parties14,7003.6%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–2026<10 (—)0 (0.0%)0 (0.0%)
2023–2024290,551 (70.4%)0 (0.0%)0 (0.0%)
2021–2022217,408 (52.7%)0 (0.0%)0 (0.0%)
2019–2020271,473 (65.8%)0 (0.0%)0 (0.0%)
2017–2018193,653 (46.9%)0 (0.0%)0 (0.0%)
2015–2016207,553 (50.3%)0 (0.0%)0 (0.0%)
2013–2014134,324 (32.6%)0 (0.0%)0 (0.0%)
2011–2012164,414 (39.8%)0 (0.0%)0 (0.0%)

Turnout counts today's registered voters with a counted ballot in the cycle's elections (the odd and even year), as a share of today's registered voters. Voters who have since left the rolls are not counted.

Browse the voter list for this district (premium access; sign-in required)

Source: Civitech voter file snapshot as of 12/10/2025. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
546,961 (± 5,470)
Median Age
48.3
Median Household Income
$68,959 (± $1,540)
High School Graduate or Higher (age 25+)
92.8%
Bachelor's Degree or Higher (age 25+)
32.5%

Population by Age

GroupPeopleShare
Under 1893,64417.1%
18 to 64310,91756.8%
65 and over142,40026.0%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)74,13313.6%
White, not Hispanic410,57575.1%
Black, not Hispanic26,3724.8%
Asian, not Hispanic12,8802.4%
American Indian / Alaska Native, not Hispanic2810.1%
Native Hawaiian / Pacific Islander, not Hispanic3350.1%
Some other race, not Hispanic2,3970.4%
Two or more races, not Hispanic19,9883.7%

Source: U.S. Census Bureau, American Community Survey 2020-2024 ACS 5-year estimates (tables B01001, B01002, B01003, B03002, B15003, B19013) for this state legislative district. Estimates are survey-based; ± figures are 90% margins of error.

Citizen Voting Age Population

Total Citizen Population
522,408
Citizen Voting Age Population (CVAP)
430,917

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic458,23987.7%
Hispanic64,17112.3%
White408,25578.1%
Black26,1445.0%
Asian10,1631.9%
American Indian / Alaska Native2870.1%
Native Hawaiian / Pacific Islander2950.1%
Two or More Races1,1570.2%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic386,34289.7%
Hispanic44,57710.3%
White350,39181.3%
Black22,9915.3%
Asian9,9082.3%
American Indian / Alaska Native2,4930.6%
Native Hawaiian / Pacific Islander2230.1%
Two or More Races7950.2%

Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).