• county
  • FIPS 06077
  • Largest town: Stockton

San Joaquin County, California

San Joaquin County had 816,108 residents in the Census Vintage 2024 estimate, on 1,392.2 square miles of land. It ranks 14th of 58 in California by population and 33rd by land area.

Population
816,108
#14 of 58 in California · #81 in US
Area
1,392.2 sq mi
#33 of 58 in California · #434 in US
Density
586 / sq mi
#11 of 58 in California · #246 in US
Median household income
$86,211
#25 of 58 in California · #306 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

San Joaquin County within California. Pin: Sacramento.

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San Joaquin County population, land area and income

San Joaquin County had 816,108 residents in the Census Vintage 2024 estimate, on 1,392.2 square miles of land. It ranks 14th of 58 in California by population and 33rd by land area. That works out to 586.2 people per square mile, 6.1 times the US average of 96.3, and in the top tenth nationally.

The median county-equivalent in California has 187,274 residents, so San Joaquin County is 4.4 times that size.

Its SAIPE 2023 median household income of $86,211 is in the top tenth among 3,143 counties with an estimate.

National rank among 3,144

Population

816,108

3144th1st

81st of 3,144 (US)

Land area

1,392 sq mi

3144th1st

434th of 3,144 (US)

Density

586.2 / sq mi

3144th1st

246th of 3,144 (US)

Median household income

$86,211

3143rd1st

306th of 3,143 (US)

Rank within California (58)

Population

816,108

58th1st

14th of 58 (CA)

Land area

1,392 sq mi

58th1st

33rd of 58 (CA)

Density

586.2 / sq mi

58th1st

11th of 58 (CA)

Median household income

$86,211

58th1st

25th of 58 (CA)

How San Joaquin County's population changed since 2020

San Joaquin County gained 35,432 residents between the July 2020 and July 2024 estimates, a rise of 4.5%. That ranks 6th of 58 in California for growth. The median California county changed by -0.6%, and the state as a whole by -0.2%.

Since the April 2020 estimates base, San Joaquin County recorded 40,179 births and 27,961 deaths, a natural change of +12,218. Net international migration added +18,994 and net domestic migration, people moving to or from other US counties, came to +5,618. The largest single component was international migration, which added 18,994 people.

780.7k2020788.1k2021795.9k2022805.9k2023816.1k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
40,179
Deaths
27,961
Net international migration
+18,994
Net domestic migration
+5,618
Change, July 2023 to July 2024
+10,199

Where San Joaquin County is

The Census internal point of San Joaquin County is at 37.935000, -121.272200. It sits in UTM zone 10N. The map shades California's 58 county-equivalents by population change from 2020 to 2024, darker for faster growth, with San Joaquin County outlined. Dots are towns of 1,000+ people with residents in it.

Los Angeles County: -2.4%Kings County: +1.4%Sierra County: -3.6%Riverside County: +4.3%Santa Barbara County: -0.8%San Bernardino County: +1.4%Nevada County: -0.1%Santa Clara County: +0.1%Yuba County: +6.7%Fresno County: +1.4%Plumas County: -4.7%Monterey County: -1.0%Amador County: +3.6%Alameda County: -1.9%Tulare County: +2.0%San Joaquin County: +4.5%Alpine County: -6.8%Siskiyou County: -3.4%Butte County: -0.9%Kern County: +1.8%San Diego County: -0.1%Sacramento County: +1.5%Ventura County: -1.0%Yolo County: +3.4%Lake County: -0.6%Napa County: -3.4%Tehama County: -1.9%San Francisco County: -5.4%El Dorado County: +0.8%Calaveras County: +2.5%Inyo County: -2.7%Shasta County: -0.6%Lassen County: -12.3%San Luis Obispo County: -0.0%Mariposa County: -0.5%Trinity County: -2.8%Contra Costa County: +0.6%Mendocino County: -2.4%Imperial County: +1.1%Santa Cruz County: -3.4%Placer County: +6.9%Orange County: -0.5%San Benito County: +7.2%Marin County: -1.9%San Mateo County: -2.6%Colusa County: +0.9%Del Norte County: -2.2%Solano County: +0.5%Glenn County: -2.0%Tuolumne County: -2.7%Sonoma County: -0.6%Humboldt County: -2.9%Mono County: -1.8%Stanislaus County: +0.6%Merced County: +4.9%Sutter County: -0.9%Madera County: +5.8%Modoc County: -2.1%
Change 2020 to 2024
  1. < -2.7%
  2. < -1.0%
  3. < -0.0%
  4. < +1.5%
  5. ≥ +1.5%
no data

Orange pin: San Joaquin County internal point. Dark pin: Sacramento.

Internal point

Decimal
37.935000, -121.272200
DMS
37°56'6.00"N 121°16'19.92"W
UTM
10N 651835.7E 4200010.8N
Geohash
9q9zb3u72
Plus code
849WWPPH+24

Towns in San Joaquin County

7 incorporated places of 1,000+ people have residents in San Joaquin County, 652,610 people together, or 80% of the county. Each figure counts only the part of the town inside San Joaquin County; towns marked "part" extend into another county. The largest is Stockton with 324,975.

  1. 01Stockton324,975
  2. 02Tracy100,136
  3. 03Manteca94,292
  4. 04Lodi68,642
  5. 05Lathrop40,860
  6. 06Ripon16,252
  7. 07Escalon7,453
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering San Joaquin County

The Census 2024 county adjacency file lists 6 neighbors for San Joaquin County. The most populous is Alameda County, CA, with 1,649,060 residents. Distances run between Census internal points in a straight line.

Distance to Sacramento and the nearest big city

Sacramento is 46.0 miles NNW of San Joaquin County's internal point in a straight line. The nearest place of 100,000 or more is Stockton, CA (population 324,975), 3.5 miles away.

San Joaquin County FIPS code

The FIPS code of San Joaquin County is 06077: state code 06 for California plus county code 077. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $86,211.

Questions people ask

What is the population of San Joaquin County, California?

The Census Vintage 2024 estimate for July 1, 2024 is 816,108. That is up 35,432 people (4.5%) from the July 2020 estimate of 780,676.

What is the FIPS code of San Joaquin County?

06077. The first two digits (06) are California; the last three (077) identify the county.

What is the largest town in San Joaquin County?

Stockton, with 324,975 residents inside San Joaquin County in 2024.

Which counties border San Joaquin County?

6 county-equivalents border it in the Census 2024 adjacency file: Alameda County, CA; Sacramento County, CA; Contra Costa County, CA; Stanislaus County, CA; Calaveras County, CA; Amador County, CA.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.