Florida State Senate District 31

State Legislative District Profile (Upper Chamber)

Overview

District ID
fl-sd-031
State
Florida
Chamber
Upper chamber (state senate)
District Code
031
Land Area
1,226.5 sq mi
Water Area
447.9 sq mi

Boundary

Boundary of Florida State Senate District 31

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Palm Beach County598.00 sq mi48.8%30.4%
Martin County543.82 sq mi44.3%100.0%
St. Lucie County84.67 sq mi6.9%14.8%

Showing all 3 counties

Places

PlaceOverlapShare of district landShare of place land
Port St. Lucie city69.33 sq mi5.7%58.2%
Palm Beach Gardens city52.93 sq mi4.3%89.3%
The Acreage CDP34.27 sq mi2.8%100.0%
West Palm Beach city31.72 sq mi2.6%58.9%
Jupiter town21.63 sq mi1.8%100.0%
Jupiter Farms CDP15.08 sq mi1.2%100.0%
Indiantown village14.18 sq mi1.2%100.0%
Palm City CDP13.86 sq mi1.1%100.0%
Loxahatchee Groves town12.51 sq mi1.0%100.0%
Royal Palm Beach village10.32 sq mi0.8%90.8%
Hobe Sound CDP7.11 sq mi0.6%100.0%
Stuart city7.05 sq mi0.6%99.0%
Jensen Beach CDP6.97 sq mi0.6%100.0%
Westlake city6.37 sq mi0.5%100.0%
Pahokee city5.32 sq mi0.4%100.0%
Port Salerno CDP3.57 sq mi0.3%100.0%
Jupiter Island town2.71 sq mi0.2%100.0%
Juno Beach town2.04 sq mi0.2%99.9%
Tequesta village1.83 sq mi0.1%100.0%
Canal Point CDP1.39 sq mi0.1%100.0%
North River Shores CDP1.27 sq mi0.1%99.9%
Sewall's Point town1.18 sq mi0.1%100.0%
Cabana Colony CDP0.43 sq mi<0.1%100.0%
Limestone Creek CDP0.39 sq mi<0.1%100.0%
Rio CDP0.38 sq mi<0.1%99.9%

Showing top 25 of 28 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 21479,02388.6%62.3%81.6%
FL District 2061,87711.4%8.0%18.4%
FL District 2200.0%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
459,000
Active Voters
392,746 (85.6%)

Party Registration

PartyVotersShare
Democratic127,08827.7%
Republican193,12342.1%
Unaffiliated121,60926.5%
Other parties17,1803.7%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–202665 (0.0%)0 (0.0%)0 (0.0%)
2023–2024334,869 (73.0%)0 (0.0%)0 (0.0%)
2021–2022236,548 (51.5%)0 (0.0%)0 (0.0%)
2019–2020304,734 (66.4%)0 (0.0%)0 (0.0%)
2017–2018221,086 (48.2%)0 (0.0%)0 (0.0%)
2015–2016235,150 (51.2%)0 (0.0%)0 (0.0%)
2013–2014140,938 (30.7%)0 (0.0%)0 (0.0%)
2011–2012186,067 (40.5%)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
568,496 (± 4,998)
Median Age
48.3
Median Household Income
$94,516 (± $1,952)
High School Graduate or Higher (age 25+)
92.8%
Bachelor's Degree or Higher (age 25+)
40.1%

Population by Age

GroupPeopleShare
Under 18105,14118.5%
18 to 64314,39855.3%
65 and over148,95726.2%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)111,22619.6%
White, not Hispanic358,17463.0%
Black, not Hispanic61,18510.8%
Asian, not Hispanic13,7952.4%
American Indian / Alaska Native, not Hispanic2970.1%
Native Hawaiian / Pacific Islander, not Hispanic4800.1%
Some other race, not Hispanic3,2190.6%
Two or more races, not Hispanic20,1203.5%

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
532,893
Citizen Voting Age Population (CVAP)
430,210

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic440,90782.7%
Hispanic91,98817.3%
White360,35667.6%
Black55,94710.5%
Asian11,4312.1%
American Indian / Alaska Native2820.1%
Native Hawaiian / Pacific Islander4040.1%
Two or More Races1,9640.4%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic366,58485.2%
Hispanic63,62414.8%
White307,54671.5%
Black44,70710.4%
Asian10,9972.6%
American Indian / Alaska Native2,0800.5%
Native Hawaiian / Pacific Islander2690.1%
Two or More Races1,1350.3%

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