ZIP code 94027
Where is ZIP code 94027?
Atherton, California
San Mateo County · Standard ZIP code
ZIP code 94027 belongs to Atherton, California in San Mateo County. 94027 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 650. About 7,002 people live in the 94027 area, where the median household income is $250,001. The closest ZIP codes are 94025 (Menlo Park, 1.4 mi southeast), 94061 (Redwood City, 1.8 mi west) and 94063 (Redwood City, 1.8 mi north).
| ZIP code | 94027 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Atherton |
| Also accepted | Menlo Park |
| State | California (CA) |
| County | San Mateo County |
| Time zone | Pacific Time · now |
| Area code | 650 |
| Coordinates | 37.4563, -122.2002 map |
| 3-digit prefix | 940 |
Population and income in 94027
| Population | 7,002 · lower than 61% of California ZIP codes |
|---|---|
| People per square mile | 1,393 · higher than 55% of California ZIP codes |
| Median age | 49.1 years · higher than 80% of California ZIP codes |
| Men / women | 51% / 49% |
| Median household income | $250,001 · higher than 99% of California ZIP codes |
| Income per person | $188,761 |
| Below the poverty line | 5.3% |
| Bachelor’s degree or higher | 83% of adults 25+ |
| Median home value | $2,000,001 · higher than 98% of California ZIP codes |
| Median rent | $3,501 a month |
| Housing units | 2,676 |
| Households | 2,236 (2.84 people on average) |
| Owners / renters | 88% / 12% |
| Land area | 5.03 sq mi (plus 0.03 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 94027. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 94027
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 94025 | Menlo Park, CA | 1.4 mi SE | Standard |
| 94061 | Redwood City, CA | 1.8 mi W | Standard |
| 94063 | Redwood City, CA | 1.8 mi N | Standard |
| 94304 | Palo Alto, CA | 1.8 mi SE | Standard |
| 94301 | Palo Alto, CA | 2.9 mi E | Standard |
| 94305 | Stanford, CA | 3.1 mi SE | Standard |
| 94302 | Palo Alto, CA | 3.3 mi E | PO Box only |
| 94309 | Palo Alto, CA | 3.3 mi E | PO Box only |
| 94303 | Palo Alto, CA | 3.5 mi E | Standard |
| 94070 | San Carlos, CA | 4.6 mi NW | Standard |
| 94306 | Palo Alto, CA | 4.8 mi SE | Standard |
| 94062 | Redwood City, CA | 5.7 mi SW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 94027 or measure the distance to another ZIP code.
How to address mail to 94027
123 MAIN ST
ATHERTON CA 94027
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts MENLO PARK as the city name for 94027. Adding the 4-digit ZIP+4 code (94027-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 94027?
- 94027 is a Atherton, California ZIP code. Menlo Park is also accepted as the city name.
- What county is 94027 in?
- ZIP code 94027 is in San Mateo County, California.
- What time zone is ZIP code 94027 in?
- 94027 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 94027?
- Phone numbers in ZIP code 94027 use area code 650.
- What is the population of ZIP code 94027?
- About 7,002 people live in ZIP code 94027, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 94027?
- The median household income in 94027 is $250,001 a year, higher than 99% of California ZIP codes.
- What ZIP codes are near 94027?
- The nearest ZIP codes to 94027 are 94025 (Menlo Park, 1.4 miles), 94061 (Redwood City, 1.8 miles), 94063 (Redwood City, 1.8 miles) and 94304 (Palo Alto, 1.8 miles).