Data as of November 4, 2026 · refreshed automatically from the official Florida voter file
Martin County, Florida has 116,513 active registered voters — 54.7% Republican, 20.6% Democratic, and 20.2% with no party affiliation, as of November 2026.
Party registration
Most reliable-voting precincts
| # | Precinct | Active voters | Supervoters | Supervoter % |
|---|---|---|---|---|
| 1 | 02.3 | 477 | 375 | 78.62% |
| 2 | 24.1 | 4,097 | 3,153 | 76.96% |
| 3 | 23.2 | 4,639 | 3,519 | 75.86% |
| 4 | 19.2 | 2,078 | 1,575 | 75.79% |
| 5 | 27.1 | 5,106 | 3,866 | 75.71% |
| 6 | 13.2 | 3,574 | 2,687 | 75.18% |
| 7 | 17.1 | 2,040 | 1,521 | 74.56% |
| 8 | 02.1 | 4,999 | 3,727 | 74.55% |
| 9 | 21.2 | 5,027 | 3,742 | 74.44% |
| 10 | 26.1 | 5,335 | 3,950 | 74.04% |
Supervoters are active registered voters who cast a ballot in at least 3 of the last 4 November general elections (2018–2024). Percentages are precinct totals from the official state voter file — no individual voter information is shown. Precincts with fewer than 400 active voters are excluded.
How Martin County voted for president
Election results are public records.
Martin County at a glance.
Martin County had an estimated 165,666 residents in July 2024, the 33rd most populous of Florida's 67 counties, up 4.6% since the 2020 census. Of those, 139,487 are 18 or older, the voting-age population, and 32.9% are 65 or older. Its 116,513 active registered voters equal about 83.5% of that voting-age population.
It covers 544 square miles of land (305 people per square mile), and 82.1% of residents live outside any incorporated city or town. The largest cities and towns are Stuart (19,566), Indiantown (6,810), Sewall's Point (2,072), Jupiter Island (837) and Ocean Breeze (402). The American Community Survey (2020-2024) puts it at a median age of 53.3, a median household income of $82,943, 37.1% of adults 25 and older holding a bachelor's degree or higher and 79.6% of occupied homes owned by the people living in them.
In 2024, 98,291 votes were cast for president, about 70.5% of the voting-age population; the Democratic ticket took 34.1% and the Republican ticket 65.2%. The two-party margin moved from R+13.6 in 2008 to R+31.1 in 2024.
- Population (2024 estimate)
- 165,666
- Population (2020 census base)
- 158,430
- Voting-age population (18+)
- 139,487
- Active voters per 100 adults
- 83.5
- Residents 65 and older
- 32.9%
- People per square mile
- 305
- Living outside incorporated places
- 82.1%
- Land area
- 544 sq mi
- Median age
- 53.3
- Median household income
- $82,943
- Adults 25+ with a bachelor's degree
- 37.1%
- Owner-occupied homes
- 79.6%
Largest cities and towns
- Stuart 19,566
- Indiantown 6,810
- Sewall's Point 2,072
- Jupiter Island 837
- Ocean Breeze 402
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 34.1% | 65.2% | R+31.1 | 98,291 |
| 2020 | 37.4% | 62.0% | R+24.6 | 98,726 |
| 2016 | 35.2% | 62.0% | R+26.8 | 85,741 |
| 2012 | 38.2% | 61.1% | R+22.9 | 78,860 |
| 2008 | 42.8% | 56.4% | R+13.6 | 78,294 |
Sources: U.S. Census Bureau Vintage 2024 population estimates and 2024 Gazetteer; American Community Survey 2020–2024 5-year estimates; certified county presidential returns. Growth, density and turnout are simple arithmetic on those figures.
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