ZIP code 94931: Cotati, CA
94931 is a ZIP code in Cotati, California, mainly in Sonoma County, part of the Santa Rosa-Petaluma, CA metro area. About 9,487 people live here.
- Population
- 9,487
- Median household income
- $101,994
- Typical home value
- $718,800+0.1% in 12 months
- Median rent
- $1,913gross, per month
- Median age
- 39.2
- Homeowners
- 59.2%of occupied homes
Shaded: ZIP code 94931's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 94931 details
| City | Cotati |
|---|---|
| State | California |
| County | Sonoma County |
| Metro area | Santa Rosa-Petaluma, CA |
| Time zone | Pacific Time (UTC−8), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 7.7 sq mi, plus 0 sq mi of water |
| Population density | 1,226 people per sq mi |
| Bachelor's degree or higher | 36.1% of adults 25+ |
| Average commute | 27.8 minutes |
| Center coordinates | 38.32517, -122.71698 |
Median rent in 94931 by bedrooms
| Size | Median gross rent |
|---|---|
| 2 bedrooms | $2,323/mo |
| 3 bedrooms | $2,764/mo |
Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.
ZIP codes near 94931
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 94927 | Rohnert Park, CA | 1.3 mi | — |
| 94926 | Rohnert Park, CA | 1.3 mi | — |
| 94928 | Rohnert Park, CA | 1.9 mi | 46,829 |
| 94951 | Penngrove, CA | 3.9 mi | 3,294 |
| 95407 | Santa Rosa, CA | 5.1 mi | 42,036 |
| 94999 | Petaluma, CA | 5.1 mi | — |
| 94952 | Petaluma, CA | 6.7 mi | 33,785 |
| 94955 | Petaluma, CA | 7.7 mi | — |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 94931?
A typical home in ZIP code 94931 is worth about $718,800 (Zillow Home Value Index). The median household here earns $101,994 a year. See what buying here would cost per month, with California average taxes and insurance filled in.
Monthly payment for a $718,800 homeWhat can a $101,994 income afford?Rental property numbers
About ZIP code 94931
What city is ZIP code 94931?
ZIP code 94931 is in Cotati, CA, in Sonoma County.
What county is ZIP code 94931 in?
94931 is mainly in Sonoma County, California.
What is the population of ZIP code 94931?
About 9,487 people live in ZIP code 94931, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 94931 in?
94931 is in Pacific Time (UTC−8). It observes daylight saving time.