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Martin County, Indiana

Martin County profile, demographic data, and geographic information.

Martin County is a county located in Indiana, United States of America. As of official census estimates, it has a reported population of 9,856. The land area covers 335.76 sq mi. [1]

Local Government Administration U.S. Census Bureau GMAF

County Of Martin County
Official Title: Auditor
Address: 129 S MAIN ST, PO BOX 600, SHOALS IN 47581-5505

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 9,856 — 2025 / Census
Median Age 42.7 yrs ±0.8 2020-2024 / Census ACS 5-Year 2024
Total Households 3,904 ±176 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 4,583 ±25
Occupied Housing Units 3,904 ±176
Vacant Housing Units 679 ±172
Median Home Value $159,400 ±$15,551
Median Gross Rent $697 ±$143
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $68,594 ±$8,824
Per Capita Income $33,135 ±$2,885
Poverty Rate 16.3% ±3.8%
Population Below Poverty Level 1,575 ±365
Unemployment Rate 2.4% ±2.3%
Civilian Labor Force, Employed 4,731 ±253
Broadband Internet Rate 85.6% ±2.9%
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 SHOALS 8 S, IN US, located 10.5 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 40.8° 23.1° 32.0° 3.68" 4.5"
February 45.6° 25.4° 35.5° 3.13" 4.7"
March 56.0° 33.4° 44.7° 4.53" 1.8"
April 68.0° 42.9° 55.5° 5.22" 0.0"
May 77.3° 53.4° 65.4° 6.09" 0.0"
June 85.1° 62.6° 73.9° 4.93" 0.0"
July 87.9° 66.0° 77.0° 4.32" 0.0"
August 87.5° 63.5° 75.5° 2.97" 0.0"
September 81.6° 56.0° 68.8° 3.70" 0.0"
October 69.9° 44.3° 57.1° 3.54" 0.1"
November 56.4° 34.8° 45.6° 4.01" 0.2"
December 45.1° 27.6° 36.4° 3.88" 2.3"
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: 18101. • 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.