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San Joaquin County, California

San Joaquin County profile, demographic data, and geographic information.

San Joaquin County is a county located in California, United States of America. As of official census estimates, it has a reported population of 823,815. The land area covers 1,392.30 sq mi. [1]

Local Government Administration U.S. Census Bureau GMAF

County Of San Joaquin County
Official Title: Senior Deputy County Administrator
Address: 222 E WEBER AVE, STOCKTON CA 95202-2709

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 823,815 — 2025 / Census
Median Age 35.4 yrs ±0.1 2020-2024 / Census ACS 5-Year 2024
Total Households 245,250 ±1,175 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 260,151 ±238
Occupied Housing Units 245,250 ±1,175
Vacant Housing Units 14,901 ±1,099
Median Home Value $530,700 ±$6,613
Median Gross Rent $1,734 ±$23
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $92,179 ±$1,619
Per Capita Income $37,266 ±$579
Poverty Rate 12.4% ±0.7%
Population Below Poverty Level 97,455 ±5,139
Unemployment Rate 7.6% ±0.4%
Civilian Labor Force, Employed 351,099 ±3,072
Broadband Internet Rate 92.5% ±0.5%
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 STOCKTON METRO AP, CA US, located 4.1 miles from San Joaquin County. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 57.0° 39.1° 48.0° 2.67" —
February 62.9° 41.3° 52.1° 2.50" —
March 68.5° 44.2° 56.4° 1.91" —
April 74.5° 47.4° 60.9° 1.11" —
May 82.8° 52.6° 67.7° 0.57" —
June 90.4° 57.6° 74.0° 0.10" —
July 95.4° 60.9° 78.1° 0.00" —
August 94.4° 60.3° 77.3° 0.01" —
September 90.4° 57.5° 73.9° 0.08" —
October 80.3° 50.6° 65.5° 0.69" —
November 66.6° 42.8° 54.7° 1.40" —
December 57.1° 38.4° 47.7° 2.41" —
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: 06077. • 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.