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McMullen County, Texas

McMullen County profile, demographic data, and geographic information.

McMullen County is a county located in Texas, United States of America. As of official census estimates, it has a reported population of 544. The land area covers 1,139.80 sq mi. [1]

Local Government Administration U.S. Census Bureau GMAF

County Of Mcmullen County
Official Title: Mcmullen Co Judge
Address: PO BOX 237, TILDEN TX 78072-0237

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 544 — 2025 / Census
Median Age 31.8 yrs ±13 2020-2024 / Census ACS 5-Year 2024
Total Households 207 ±83 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 348 ±93
Occupied Housing Units 207 ±83
Vacant Housing Units 141 ±45
Median Home Value $97,100 ±$43,815
Median Gross Rent $758 ±$739
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $43,875 ±$13,683
Per Capita Income $22,183 ±$9,254
Poverty Rate 12.3% ±12.5%
Population Below Poverty Level 86 ±94
Unemployment Rate 0% ±6.5%
Civilian Labor Force, Employed 231 ±97
Broadband Internet Rate 81.2% ±13.6%
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 TILDEN 4 SSE, TX US, located 3.5 miles from McMullen County. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 66.1° 43.5° 54.8° 1.09" 0.0"
February 71.3° 47.5° 59.4° 1.09" 0.0"
March 77.2° 53.7° 65.4° 2.25" 0.0"
April 84.1° 60.2° 72.1° 2.12" 0.0"
May 90.0° 68.2° 79.1° 3.17" 0.0"
June 95.4° 72.8° 84.1° 2.46" 0.0"
July 97.3° 74.2° 85.8° 2.87" 0.0"
August 98.9° 74.0° 86.5° 2.06" 0.0"
September 92.6° 69.9° 81.2° 3.57" 0.0"
October 85.4° 61.9° 73.7° 1.92" 0.0"
November 75.3° 51.7° 63.5° 1.46" 0.0"
December 67.4° 44.9° 56.1° 1.54" 0.3"
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: 48311. • 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.