ZIP code 94931
Where is ZIP code 94931?
Cotati, California
Sonoma County · Standard ZIP code
ZIP code 94931 belongs to Cotati, California in Sonoma County. 94931 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Pacific Time zone and uses area code 707. About 9,487 people live in the 94931 area, where the median household income is $101,994. The closest ZIP codes are 94926 (Rohnert Park, 1 mi north), 94927 (Rohnert Park, 1 mi north) and 94928 (Rohnert Park, 1.6 mi north).
| ZIP code | 94931 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Cotati |
| State | California (CA) |
| County | Sonoma County |
| Time zone | Pacific Time · now |
| Area code | 707 |
| Coordinates | 38.3259, -122.7048 map |
| 3-digit prefix | 949 |
Population and income in 94931
| Population | 9,487 · lower than 58% of California ZIP codes |
|---|---|
| People per square mile | 1,227 · higher than 54% of California ZIP codes |
| Median age | 39.2 years · lower than 54% of California ZIP codes |
| Men / women | 50% / 50% |
| Median household income | $101,994 · higher than 57% of California ZIP codes |
| Income per person | $55,275 |
| Below the poverty line | 8.6% |
| Bachelor’s degree or higher | 36% of adults 25+ |
| Median home value | $820,000 · higher than 63% of California ZIP codes |
| Median rent | $1,913 a month |
| Housing units | 4,134 |
| Households | 4,072 (2.32 people on average) |
| Owners / renters | 59% / 41% |
| Land area | 7.74 sq mi (plus 0.01 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 94931. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 94931
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 94926 | Rohnert Park, CA | 1 mi N | Unique |
| 94927 | Rohnert Park, CA | 1 mi N | PO Box only |
| 94928 | Rohnert Park, CA | 1.6 mi N | Standard |
| 94951 | Penngrove, CA | 3.1 mi E | Standard |
| 94999 | Petaluma, CA | 4.8 mi SE | Standard |
| 95407 | Santa Rosa, CA | 5.9 mi N | Standard |
| 94952 | Petaluma, CA | 6.1 mi S | Standard |
| 94954 | Petaluma, CA | 7.1 mi SE | Standard |
| 94953 | Petaluma, CA | 7.4 mi SE | PO Box only |
| 94955 | Petaluma, CA | 7.4 mi SE | PO Box only |
| 94975 | Petaluma, CA | 7.4 mi SE | PO Box only |
| 95402 | Santa Rosa, CA | 7.9 mi N | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 94931 or measure the distance to another ZIP code.
How to address mail to 94931
123 MAIN ST
COTATI CA 94931
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (94931-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 94931?
- 94931 is a Cotati, California ZIP code.
- What county is 94931 in?
- ZIP code 94931 is in Sonoma County, California.
- What time zone is ZIP code 94931 in?
- 94931 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 94931?
- Phone numbers in ZIP code 94931 use area code 707.
- What is the population of ZIP code 94931?
- About 9,487 people live in ZIP code 94931, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 94931?
- The median household income in 94931 is $101,994 a year, higher than 57% of California ZIP codes.
- What ZIP codes are near 94931?
- The nearest ZIP codes to 94931 are 94926 (Rohnert Park, 1 miles), 94927 (Rohnert Park, 1 miles), 94928 (Rohnert Park, 1.6 miles) and 94951 (Penngrove, 3.1 miles).