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Where am ILOCATED

San Joaquin County, California

San Joaquin County, California, has 823,815 residents (July 2025 estimate). Its county seat is Stockton. It uses Pacific Time and covers 1,392 sq mi (3,606 km²) of land.

Los AngelesSan DiegoSan Jose
San Joaquin County in California
Alameda CountyCalaveras CountyContra Costa CountyStanislaus CountyStocktonTracyMantecaLodiLathrop
San Joaquin County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
823,815
Land area
1,392 sq mi (3,606 km²)
County seat or government
Stockton
Time zone
Pacific TimeUTC-08:00 in January; UTC-07:00 in July
Median household income
$92,179 ± $1,619
Median home value
$530,700 ± $6,613
Median rent, with utilities
$1,734 ± $23
Homes lived in by their owners
62% ± 0.8 points
County type
County
Metro or micro area
Stockton-Lodi, CA metro areaCentral county
Water area
34.3 sq mi (88.9 km²)
State
California
County code (FIPS)
06077
Coordinates (central point)
37.934982, -121.272244
Open this point in the location finder

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in San Joaquin County

Time zoneLocal time and UTC offsetNext clock change
Pacific TimeAmerica/Los_AngelesUTC-08:00 in January; UTC-07:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 9520668,558 people
  2. 9537654,488 people
  3. 9520752,414 people
  4. 9524050,517 people
  5. 9533650,185 people
  6. 9533748,731 people
  7. 9520947,409 people
  8. 9521041,549 people
  9. 9520539,608 people
  10. 9537737,739 people
  11. 9533035,395 people
  12. 9536134,810 people
All 37
  1. 9563232,493 people
  2. 9521931,713 people
  3. 9520431,035 people
  4. 9521228,437 people
  5. 9524228,427 people
  6. 9539125,574 people
  7. 9521524,847 people
  8. 9536618,954 people
  9. 9520315,930 people
  10. 9530415,841 people
  11. 9450514,970 people
  12. 9532013,500 people
  13. 952207,931 people
  14. 952027,066 people
  15. 952364,490 people
  16. 952584,144 people
  17. 952313,896 people
  18. 952373,639 people
  19. 956412,214 people
  20. 956861,171 people
  21. 95227910 people
  22. 95211765 people
  23. 95253609 people
  24. 95385602 people
  25. 95230403 people

37 ZIP Code areas overlap San Joaquin County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

San Joaquin County government website ↗ is the next stop for county offices, tax, voting, jury and records information. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

School districts in San Joaquin County, largest first

  1. Stockton Unified School District211,978 people
  2. Lodi Unified School District185,096 people
  3. Manteca Unified School District151,286 people
  4. Tracy Unified School District83,942 people
  5. Lincoln Unified School District49,562 people
  6. Galt Joint Union High School District42,153 people
  7. Galt Joint Union Elementary School District31,858 people
  8. Lammersville Joint Unified School District26,539 people
  9. Tracy Unified School District (9-12)22,283 people
  10. Ripon Unified School District21,586 people
  11. Jefferson Elementary School District (San Joaquin County)19,550 people
  12. Escalon Unified School District14,406 people
All 19
  1. Linden Unified School District12,378 people
  2. Banta Unified School District11,061 people
  3. Oak View Union Elementary School District3,655 people
  4. Oakdale Joint Unified School District (9-12)2,882 people
  5. New Jerusalem Elementary School District2,733 people
  6. Valley Home Joint Elementary School District2,471 people
  7. New Hope Elementary School District1,236 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Stockton, California (city)322,326 people
  2. Tracy, California (city)96,966 people
  3. Manteca, California (city)89,043 people
  4. Lodi, California (city)67,607 people
  5. Lathrop, California (city)35,052 people
  6. Mountain House, California (city)25,513 people
  7. Ripon, California (city)16,201 people
  8. Garden Acres, California (CDP)10,667 people
  9. Country Club, California (CDP)10,161 people
  10. August, California (CDP)8,825 people
  11. Escalon, California (city)7,451 people
  12. Lincoln Village, California (CDP)4,241 people
All 28
  1. Woodbridge, California (CDP)4,144 people
  2. Lockeford, California (CDP)3,838 people
  3. Morada, California (CDP)3,383 people
  4. French Camp, California (CDP)3,264 people
  5. Dogtown, California (CDP)3,094 people
  6. Kennedy, California (CDP)2,576 people
  7. Collierville, California (CDP)2,546 people
  8. Linden, California (CDP)2,389 people
  9. Taft Mosswood, California (CDP)1,343 people
  10. Waterloo, California (CDP)894 people
  11. Thornton, California (CDP)817 people
  12. Peters, California (CDP)568 people
  13. Victor, California (CDP)460 people
  14. Terminous, California (CDP)365 people
  15. Acampo, California (CDP)234 people
  16. Farmington, California (CDP)49 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Stanislaus County, California30 mi southeast
  2. Sacramento County, California36 mi north
  3. Contra Costa County, California37 mi west
  4. Alameda County, California40 mi southwest
  5. Calaveras County, California43 mi northeast
  6. Amador County, California49 mi northeast

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.