ZIP code 94021
Where is ZIP code 94021?
Loma Mar, California
San Mateo County · Standard ZIP code
ZIP code 94021 belongs to Loma Mar, California in San Mateo County. 94021 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 650 and 831. About 321 people live in the 94021 area, where the median household income is $250,001. The closest ZIP codes are 94020 (La Honda, 1.7 mi east), 94074 (San Gregorio, 5.6 mi northwest) and 94060 (Pescadero, 6.4 mi southwest).
| ZIP code | 94021 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Loma Mar |
| State | California (CA) |
| County | San Mateo County |
| Time zone | Pacific Time · now |
| Area codes | 650, 831 |
| Coordinates | 37.2708, -122.2807 map |
| 3-digit prefix | 940 |
Population and income in 94021
| Population | 321 · lower than 90% of California ZIP codes |
|---|---|
| People per square mile | 29 · lower than 80% of California ZIP codes |
| Median age | 46.8 years · higher than 77% of California ZIP codes |
| Men / women | 54% / 46% |
| Median household income | $250,001 · higher than 99% of California ZIP codes |
| Income per person | $114,055 |
| Below the poverty line | 0.0% |
| Bachelor’s degree or higher | 71% of adults 25+ |
| Median home value | $1,073,100 · higher than 79% of California ZIP codes |
| Housing units | 140 |
| Households | 128 (2.51 people on average) |
| Owners / renters | 72% / 28% |
| Land area | 10.97 sq mi |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 94021. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 94021
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 94020 | La Honda, CA | 1.7 mi E | Standard |
| 94074 | San Gregorio, CA | 5.6 mi NW | Standard |
| 94060 | Pescadero, CA | 6.4 mi SW | Standard |
| 94028 | Portola Valley, CA | 7.7 mi NE | Standard |
| 94026 | Menlo Park, CA | 8.2 mi N | PO Box only |
| 94064 | Redwood City, CA | 8.2 mi N | PO Box only |
| 94062 | Redwood City, CA | 10.7 mi N | Standard |
| 95006 | Boulder Creek, CA | 11.3 mi SE | Standard |
| 94022 | Los Altos, CA | 11.4 mi NE | Standard |
| 94023 | Los Altos, CA | 12.1 mi NE | PO Box only |
| 94024 | Los Altos, CA | 12.2 mi NE | Standard |
| 94305 | Stanford, CA | 12.4 mi NE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 94021 or measure the distance to another ZIP code.
How to address mail to 94021
123 MAIN ST
LOMA MAR CA 94021
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (94021-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 94021?
- 94021 is a Loma Mar, California ZIP code.
- What county is 94021 in?
- ZIP code 94021 is in San Mateo County, California.
- What time zone is ZIP code 94021 in?
- 94021 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 94021?
- Phone numbers in ZIP code 94021 use area codes 650 and 831.
- What is the population of ZIP code 94021?
- About 321 people live in ZIP code 94021, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 94021?
- The median household income in 94021 is $250,001 a year, higher than 99% of California ZIP codes.
- What ZIP codes are near 94021?
- The nearest ZIP codes to 94021 are 94020 (La Honda, 1.7 miles), 94074 (San Gregorio, 5.6 miles), 94060 (Pescadero, 6.4 miles) and 94028 (Portola Valley, 7.7 miles).