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ZIP Code 94931
Cotati, CA, Sonoma County
Population
9,487
Land area
7.7sq mi
People per sq mi
1,226
City
Cotati
ZIP 94931 and nearby ZIP codes
ZIP 94931 at a glance
- ZIP 94931 (Cotati) is about 4.9 times as dense as California as a whole.
- The median household income is $101,994, close to the California median.
- A typical owner-occupied home is valued at $820,000 (12% above California) and median rent is $1,913 a month.
Local data for ZIP 94931
Counts from official public data
Housing and community stats
ZIP 94931, American Community Survey 2020-2024
Median household income
$101,994
Poverty rate
8.6%
Median home value
$820,000
Prices -1.1% in a year
Median rent
$1,913/mo
Homeownership
59.2%
Bachelor's or higher
36.1%
Median age
39.2
Average commute
27.8 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
324
ZIP Business Patterns 2023
Employees
3,390
$214M annual payroll
PPP loans
$28.8M
370 loans
Campaign donations
$65.3K
52% D, 12% R, 2026 cycle
Environment and hazard risk
ZIP 94931, from FEMA, NOAA and EPA
Natural hazard risk
Relatively High
Top: landslide
Storm events since 1996
806
Countywide, mostly flood
Flood insurance policies
1,790
1.1% of homes, county
July high / Jan low
81° / 39°F
25.6 inches of rain a year
Health statistics
Share of adults in ZIP 94931, CDC PLACES estimates
Obesity
26.2%
U.S. 33.3% -7.1 pts
Diabetes
9.5%
U.S. 12.1% -2.6 pts
Smoking
11.0%
U.S. 12.8% -1.8 pts
Uninsured (18-64)
6.6%
U.S. 11.1% -4.5 pts
Frequently asked questions
- What city is ZIP code 94931?
- ZIP code 94931 is in Cotati, CA (Sonoma County).
- What county is ZIP code 94931 in?
- ZIP code 94931 is mostly in Sonoma County, California.
- How many people live in ZIP code 94931?
- About 9,487 people live in the 94931 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.