ZIP code 91931: Guatay, CA
91931 is a ZIP code in Guatay, California, mainly in San Diego County, part of the San Diego-Chula Vista-Carlsbad, CA metro area. About 494 people live here.
- Population
- 494
- Median household income
- $63,750
- Typical home value
- —
- Median rent
- —gross, per month
- Median age
- 65.2
- Homeowners
- 81.4%of occupied homes
Shaded: ZIP code 91931's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 91931 details
| City | Guatay |
|---|---|
| State | California |
| County | San Diego County |
| Metro area | San Diego-Chula Vista-Carlsbad, CA |
| Time zone | Pacific Time (UTC−8), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 8.2 sq mi |
| Population density | 60 people per sq mi |
| Bachelor's degree or higher | 22.6% of adults 25+ |
| Center coordinates | 32.83760, -116.58030 |
ZIP codes near 91931
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 91962 | Pine Valley, CA | 3.6 mi | 2,574 |
| 91916 | Descanso, CA | 5.9 mi | 1,710 |
| 91948 | Mount Laguna, CA | 6.5 mi | 93 |
| 91901 | Alpine, CA | 8.7 mi | 18,197 |
| 91903 | Alpine, CA | 10.8 mi | — |
| 91963 | Potrero, CA | 13.1 mi | 689 |
| 91906 | Campo, CA | 13.8 mi | 3,325 |
| 91935 | Jamul, CA | 15.1 mi | 9,114 |
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
About ZIP code 91931
What city is ZIP code 91931?
ZIP code 91931 is in Guatay, CA, in San Diego County.
What county is ZIP code 91931 in?
91931 is mainly in San Diego County, California.
What is the population of ZIP code 91931?
About 494 people live in ZIP code 91931, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 91931 in?
91931 is in Pacific Time (UTC−8). It observes daylight saving time.