| ZIP Code | 94931 |
|---|---|
| City | Cotati |
| State | California (CA) |
| County | Sonoma County |
| Area Code | 369/707 |
| Elevation | 110 ft |
| Latitude | 38.325172 |
|---|---|
| Longitude | -122.716977 |
| Timezone | Los Angeles (DST) |
| FIPS | 06097 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 39.8 yrs ↑ 4% since 2019 |
|---|---|
| Avg Household Size | 2.25 |
| Below Poverty | 7.6% ▼ 24% below avg |
| College Grads | 49.6% ▲ 28% above avg |
| Unemployment | 3.2% ▼ 34% below avg |
| No HS Diploma | 22 (0.3%) |
| HS Graduate | 1,139 (17.1%) |
| Some College | 823 (12.3%) |
| Associates | 1,379 (20.7%) |
| Bachelors | 740 (11.1%) |
| Graduate Degree | 2,574 (38.6%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $103,105 ▲ 35% above avg ↑ 29% since 2019 |
|---|---|
| Median Home Value | $788,200 ▲ 183% above avg ↑ 42% since 2019 |
| Home/Income Ratio | 7.6x (nat avg ~3.5x) |
| Median Rent | $1,780/mo ↑ 9% since 2019 |
| Total Units | 4,244 |
| Vacant Units | 125 |
| Avg HH Size | 2.25 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 4,244 |
|---|---|
| Vacant | 125 |
| Owner Occupied | 60.2% |
| Renter Occupied | 39.8% |
| Avg HH Size | 2.25 |
ZIP code 94931 is located in Cotati, California, within Sonoma County. With a population of 9,320, this is a lightly populated ZIP code with a middle-aged community — the median age is 39.8 years. Economically, 94931 is a upper-middle-income ZIP code: the median household income of $103,105 is above the national average.
Real estate in ZIP code 94931 represents a premium housing market. The median home value of $788,200 is more than double the national average. Renters can expect to pay around $1,780 per month in median rent. Homeownership is strong here — 60.2% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 42% since 2019.
The population of 94931 is majority White (69.84%). Residents are well-educated — 49.6% hold a bachelor's degree or higher, which is above the national average. Poverty affects a relatively small share of residents at 7.6%. Household income has grown by 29% since 2019.
The unemployment rate in 94931 stands at 3.2%, which is below the national average. About 16% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 70%.
Overall, ZIP code 94931 in Cotati, CA is characterized as upper-middle-income, well-educated, a middle-aged community, and predominantly owner-occupied. With 9,320 residents, a median household income of $103,105, and a median home value of $788,200, it offers a clear picture of life in this part of California.