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Martin County, Florida

Martin County profile, demographic data, and geographic information.

Martin County is a county located in Florida, United States of America. As of official census estimates, it has a reported population of 166,272. The land area covers 543.88 sq mi. [1]

Local Government Administration U.S. Census Bureau GMAF

County Of Martin County
Official Title: Growth Management Director
Address: 2401 SE MONTEREY RD, STUART FL 34996-3397

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 166,272 — 2025 / Census
Median Age 53.3 yrs ±0.2 2020-2024 / Census ACS 5-Year 2024
Total Households 67,801 ±927 2020-2024 / Census ACS 5-Year 2024
Source: U.S. Census Bureau (PEP, ACS 5-Year).

Housing & Real Estate Profile

Housing Metric Estimate / Value Margin of Error
Total Housing Units 83,121 ±59
Occupied Housing Units 67,801 ±927
Vacant Housing Units 15,320 ±920
Median Home Value $432,200 ±$10,447
Median Gross Rent $1,569 ±$58
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $82,943 ±$2,984
Per Capita Income $53,291 ±$1,408
Poverty Rate 11.3% ±1.1%
Population Below Poverty Level 17,940 ±1,727
Unemployment Rate 4.9% ±0.7%
Civilian Labor Force, Employed 68,807 ±1,556
Broadband Internet Rate 92.2% ±0.8%
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Climate & Weather Observations

NOAA Monthly Climate Normals

Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at PORT SALERNO 5W, FL US, located 8.4 miles from Martin County. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 73.7° 53.6° 63.7° 3.17" —
February 76.2° 54.8° 65.5° 2.27" —
March 78.5° 57.8° 68.2° 3.95" —
April 83.1° 61.6° 72.3° 2.87" —
May 85.9° 67.1° 76.5° 5.73" —
June 88.9° 71.5° 80.2° 9.56" —
July 90.3° 72.9° 81.6° 7.00" —
August 90.8° 73.9° 82.3° 9.03" —
September 88.5° 72.4° 80.5° 9.17" —
October 85.3° 68.3° 76.8° 5.05" —
November 79.2° 62.0° 70.6° 3.44" —
December 75.8° 56.7° 66.2° 2.92" —
Source: NOAA U.S. Climate Normals (1991–2020).

Local Weather Forecast

Weather forecast data is currently unavailable in the local cache.

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 12085. • Official Source Dataset →
  2. Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
  3. Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
  4. Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.