• county
  • FIPS 06099
  • Largest town: Modesto

Stanislaus County, California

Stanislaus County had 556,972 residents in the Census Vintage 2024 estimate, on 1,496.2 square miles of land. It ranks 16th of 58 in California by population and 30th by land area.

Population
556,972
#16 of 58 in California · #130 in US
Area
1,496.2 sq mi
#30 of 58 in California · #402 in US
Density
372 / sq mi
#15 of 58 in California · #369 in US
Median household income
$81,582
#29 of 58 in California · #420 in US

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

Stanislaus County within California. Pin: Sacramento.

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Stanislaus County population, land area and income

Stanislaus County had 556,972 residents in the Census Vintage 2024 estimate, on 1,496.2 square miles of land. It ranks 16th of 58 in California by population and 30th by land area. That works out to 372.3 people per square mile, 3.9 times the US average of 96.3, and in the top quarter nationally.

The median county-equivalent in California has 187,274 residents, so Stanislaus County is 3.0 times that size.

Its SAIPE 2023 median household income of $81,582 is in the top quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

556,972

3144th1st

130th of 3,144 (US)

Land area

1,496 sq mi

3144th1st

402nd of 3,144 (US)

Density

372.3 / sq mi

3144th1st

369th of 3,144 (US)

Median household income

$81,582

3143rd1st

420th of 3,143 (US)

Rank within California (58)

Population

556,972

58th1st

16th of 58 (CA)

Land area

1,496 sq mi

58th1st

30th of 58 (CA)

Density

372.3 / sq mi

58th1st

15th of 58 (CA)

Median household income

$81,582

58th1st

29th of 58 (CA)

How Stanislaus County's population changed since 2020

Stanislaus County gained 3,262 residents between the July 2020 and July 2024 estimates, a rise of 0.6%. That ranks 20th 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, Stanislaus County recorded 29,429 births and 21,807 deaths, a natural change of +7,622. Net international migration added +8,347 and net domestic migration, people moving to or from other US counties, came to -12,703. The largest single component was domestic migration, which removed 12,703 people.

553.7k2020552.9k2021552.4k2022553.9k2023557.0k2024
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
29,429
Deaths
21,807
Net international migration
+8,347
Net domestic migration
-12,703
Change, July 2023 to July 2024
+3,051

Where Stanislaus County is

The Census internal point of Stanislaus County is at 37.562300, -121.002800. 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 Stanislaus 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: Stanislaus County internal point. Dark pin: Sacramento.

Internal point

Decimal
37.562300, -121.002800
DMS
37°33'44.28"N 121°00'10.08"W
UTM
10N 676395.1E 4159127.7N
Geohash
9q9vww02q
Plus code
849WHX6W+WV

Towns in Stanislaus County

9 incorporated places of 1,000+ people have residents in Stanislaus County, 446,528 people together, or 80% of the county. Each figure counts only the part of the town inside Stanislaus County; towns marked "part" extend into another county. The largest is Modesto with 220,592.

  1. 01Modesto220,592
  2. 02Turlock72,888
  3. 03Ceres49,253
  4. 04Riverbank25,625
  5. 05Patterson25,495
  6. 06Oakdale23,209
  7. 07Newman12,292
  8. 08Waterford9,271
  9. 09Hughson7,903
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Stanislaus County

The Census 2024 county adjacency file lists 7 neighbors for Stanislaus County. The most populous is Santa Clara County, CA, with 1,926,325 residents. Distances run between Census internal points in a straight line.

Distance to Sacramento and the nearest big city

Sacramento is 75.0 miles NNW of Stanislaus County's internal point in a straight line. The nearest place of 100,000 or more is Modesto, CA (population 220,592), 5.2 miles away. The nearest place of 10,000 or more is Ceres, CA (population 49,253), 3.2 miles away.

Stanislaus County FIPS code

The FIPS code of Stanislaus County is 06099: state code 06 for California plus county code 099. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $81,582.

Questions people ask

What is the population of Stanislaus County, California?

The Census Vintage 2024 estimate for July 1, 2024 is 556,972. That is up 3,262 people (0.6%) from the July 2020 estimate of 553,710.

What is the FIPS code of Stanislaus County?

06099. The first two digits (06) are California; the last three (099) identify the county.

What is the largest town in Stanislaus County?

Modesto, with 220,592 residents inside Stanislaus County in 2024.

Which counties border Stanislaus County?

7 county-equivalents border it in the Census 2024 adjacency file: Santa Clara County, CA; Alameda County, CA; San Joaquin County, CA; Merced County, CA; Tuolumne County, CA; Calaveras County, CA; Mariposa 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.