ZIP code 94587
Where is ZIP code 94587?
Union City, California
Alameda County · Standard ZIP code
ZIP code 94587 belongs to Union City, California in Alameda County. 94587 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 341 and 510. About 67,464 people live in the 94587 area, where the median household income is $133,715. The closest ZIP codes are 94555 (Fremont, 1.1 mi south), 94536 (Fremont, 3.4 mi southeast) and 94544 (Hayward, 3.4 mi north).
| ZIP code | 94587 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Union City |
| State | California (CA) |
| County | Alameda County |
| Time zone | Pacific Time · now |
| Area codes | 341, 510 |
| Coordinates | 37.5895, -122.0497 map |
| 3-digit prefix | 945 |
Population and income in 94587
| Population | 67,464 · higher than 96% of California ZIP codes |
|---|---|
| People per square mile | 3,437 · higher than 67% of California ZIP codes |
| Median age | 43 years · higher than 63% of California ZIP codes |
| Men / women | 50% / 50% |
| Median household income | $133,715 · higher than 80% of California ZIP codes |
| Income per person | $57,977 |
| Below the poverty line | 7.2% |
| Bachelor’s degree or higher | 45% of adults 25+ |
| Median home value | $1,104,900 · higher than 81% of California ZIP codes |
| Median rent | $2,713 a month |
| Housing units | 21,901 |
| Households | 21,240 (3.13 people on average) |
| Owners / renters | 65% / 35% |
| Land area | 19.63 sq mi (plus 1.12 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 94587. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 94587
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 94555 | Fremont, CA | 1.1 mi S | Standard |
| 94536 | Fremont, CA | 3.4 mi SE | Standard |
| 94544 | Hayward, CA | 3.4 mi N | Standard |
| 94560 | Newark, CA | 3.8 mi S | Standard |
| 94545 | Hayward, CA | 4 mi NW | Standard |
| 94542 | Hayward, CA | 4.8 mi N | Standard |
| 94543 | Hayward, CA | 5.7 mi N | PO Box only |
| 94538 | Fremont, CA | 5.9 mi SE | Standard |
| 94541 | Hayward, CA | 6.2 mi N | Standard |
| 94580 | San Lorenzo, CA | 7.6 mi NW | Standard |
| 94546 | Castro Valley, CA | 7.9 mi N | Standard |
| 94539 | Fremont, CA | 8.3 mi SE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 94587 or measure the distance to another ZIP code.
How to address mail to 94587
123 MAIN ST
UNION CITY CA 94587
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (94587-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 94587?
- 94587 is a Union City, California ZIP code.
- What county is 94587 in?
- ZIP code 94587 is in Alameda County, California.
- What time zone is ZIP code 94587 in?
- 94587 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 94587?
- Phone numbers in ZIP code 94587 use area codes 341 and 510.
- What is the population of ZIP code 94587?
- About 67,464 people live in ZIP code 94587, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 94587?
- The median household income in 94587 is $133,715 a year, higher than 80% of California ZIP codes.
- What ZIP codes are near 94587?
- The nearest ZIP codes to 94587 are 94555 (Fremont, 1.1 miles), 94536 (Fremont, 3.4 miles), 94544 (Hayward, 3.4 miles) and 94560 (Newark, 3.8 miles).