ZIP code 91901
Where is ZIP code 91901?
Alpine, California
San Diego County · Standard ZIP code
ZIP code 91901 belongs to Alpine, California in San Diego County. 91901 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 codes 619 and 858. About 18,197 people live in the 91901 area, where the median household income is $114,167. The closest ZIP codes are 91903 (Alpine, 0.8 mi northwest), 91935 (Jamul, 9 mi southwest) and 91916 (Descanso, 9.3 mi east).
| ZIP code | 91901 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Alpine |
| State | California (CA) |
| County | San Diego County |
| Time zone | Pacific Time · now |
| Area codes | 619, 858 |
| Coordinates | 32.8282, -116.7543 map |
| 3-digit prefix | 919 |
Population and income in 91901
| Population | 18,197 · higher than 52% of California ZIP codes |
|---|---|
| People per square mile | 234 · lower than 62% of California ZIP codes |
| Median age | 42.2 years · higher than 59% of California ZIP codes |
| Men / women | 50% / 50% |
| Median household income | $114,167 · higher than 69% of California ZIP codes |
| Income per person | $50,579 |
| Below the poverty line | 12% |
| Bachelor’s degree or higher | 31% of adults 25+ |
| Median home value | $852,000 · higher than 67% of California ZIP codes |
| Median rent | $2,055 a month |
| Housing units | 6,591 |
| Households | 6,344 (2.83 people on average) |
| Owners / renters | 75% / 25% |
| Land area | 77.87 sq mi (plus 0.69 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 91901. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 91901
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 91903 | Alpine, CA | 0.8 mi NW | PO Box only |
| 91935 | Jamul, CA | 9 mi SW | Standard |
| 91916 | Descanso, CA | 9.3 mi E | Standard |
| 92021 | El Cajon, CA | 9.8 mi W | Standard |
| 92040 | Lakeside, CA | 9.8 mi W | Standard |
| 92019 | El Cajon, CA | 10.2 mi W | Standard |
| 91931 | Guatay, CA | 11.5 mi E | PO Box only |
| 92022 | El Cajon, CA | 12.3 mi W | PO Box only |
| 92020 | El Cajon, CA | 12.6 mi W | Standard |
| 92072 | Santee, CA | 12.8 mi W | PO Box only |
| 92071 | Santee, CA | 13.5 mi W | Standard |
| 91978 | Spring Valley, CA | 13.6 mi SW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 91901 or measure the distance to another ZIP code.
How to address mail to 91901
123 MAIN ST
ALPINE CA 91901
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (91901-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Alpine, CA
All Alpine ZIP codes with population and income →
Questions
- What city is ZIP code 91901?
- 91901 is a Alpine, California ZIP code.
- What county is 91901 in?
- ZIP code 91901 is in San Diego County, California.
- What time zone is ZIP code 91901 in?
- 91901 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 91901?
- Phone numbers in ZIP code 91901 use area codes 619 and 858.
- What is the population of ZIP code 91901?
- About 18,197 people live in ZIP code 91901, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 91901?
- The median household income in 91901 is $114,167 a year, higher than 69% of California ZIP codes.
- What ZIP codes are near 91901?
- The nearest ZIP codes to 91901 are 91903 (Alpine, 0.8 miles), 91935 (Jamul, 9 miles), 91916 (Descanso, 9.3 miles) and 92021 (El Cajon, 9.8 miles).