What is the largest city in Stanislaus County, CA?

Modesto is the largest city or town in Stanislaus County, with about 219,215 residents.

How many ZIP codes are in Stanislaus County?

Stanislaus County includes 25 ZIP Code Tabulation Areas, including 95230, 95307, 95313, 95316, 95319.

What is the population of Stanislaus County, CA?

About 553,990 people live in Stanislaus County, based on American Community Survey 5-year estimates.

What counties border Stanislaus County?

Stanislaus County borders Santa Clara County, Alameda County, San Joaquin County, Merced County, Tuolumne County, Calaveras County, Mariposa County.

Stanislaus County, CA: Cities, ZIP Codes & Local Data

Population

553,990

Land area

1,496sq mi

People per sq mi

370

ZIP codes

25

Stanislaus County at a glance

Stanislaus County is 47% denser than California as a whole.
The median household income is $81,468, 18% below the California median of $99,122.
A typical owner-occupied home is valued at $450,100 (39% below California) and median rent is $1,623 a month.
Its largest cities are Modesto (219,215), Turlock (72,502) and Ceres (49,342).

Local data for Stanislaus County, CA

Counts from official public data

Housing and community stats

Stanislaus County, CA, American Community Survey 2020-2024

Full profile

Median household income

$81,468

Poverty rate

13.5%

Median home value

$450,100

Prices +1.4% in a year

Median rent

$1,623/mo

Homeownership

61.2%

Bachelor's or higher

19.6%

Median age

34.9

Average commute

30.8 min

Largest reported origins and ancestries: Mexican Americans (254,678), German Americans (37,040), Irish Americans (33,219).

Home values and rents Income, education and commute

Economy and federal money

Jobs, income, federal spending and pandemic loans

Details

Unemployment rate

6.6%

Sep 2026, -0.2 pts in a year

Average annual pay

$64,812

199,343 jobs, 2025

Income per person

$56,741

BEA, 2024

Federal spending

$2.7B

FY 2026, $4,889 per person

PPP loans

$930M

10,451 loans, 108,498 jobs reported

Campaign donations

$1.6M

Itemized, 2026 cycle

Economy Federal spending PPP loans

How people get to work

Stanislaus County, CA, workers 16 and older. American Community Survey 5-year estimates

Drove alone77.2%
Carpooled10.8%
Public transit0.8%
Walked1.5%
Bicycle0.4%
Taxi, ride-hailing, motorcycle or other1.2%
Worked from home8.1%

Average one-way commute: 30.8 minutes for people who do not work from home.

Environment and hazard risk

Stanislaus County, CA, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively High

Top: drought

Storm events since 1996

73

Most often flood

Flood insurance policies

718

0.4% of homes, county

July high / Jan low

95° / 39°F

12.3 inches of rain a year

Hazards, floods and storm history Check a flood zone 22 historic places

Health statistics

Share of adults in Stanislaus County, CA, CDC PLACES estimates

All 40 measures

Obesity

36.4%

U.S. 33.3% +3.1 pts

Diabetes

11.9%

U.S. 12.1% about the same

Smoking

13.4%

U.S. 12.8% +0.6 pts

Uninsured (18-64)

14.0%

U.S. 11.1% +2.9 pts

Cities, towns and ZIP codes in Stanislaus County

Population shown

Frequently asked questions

What is the largest city in Stanislaus County, CA?: Modesto is the largest city or town in Stanislaus County, with about 219,215 residents.
How many ZIP codes are in Stanislaus County?: Stanislaus County includes 25 ZIP Code Tabulation Areas, including 95230, 95307, 95313, 95316, 95319.
What is the population of Stanislaus County, CA?: About 553,990 people live in Stanislaus County, based on American Community Survey 5-year estimates.
What counties border Stanislaus County?: Stanislaus County borders Santa Clara County, Alameda County, San Joaquin County, Merced County, Tuolumne County, Calaveras County, Mariposa County.