ZIP code 94511
Where is ZIP code 94511?
Bethel Island, California
Contra Costa County · PO Box only ZIP code
ZIP code 94511 belongs to Bethel Island, California in Contra Costa County. 94511 is a PO Box only ZIP code: it is used for post office boxes at the Bethel Island post office, not for street addresses. It is in the Pacific Time zone and uses area code 925. About 1,864 people live in the 94511 area, where the median household income is $74,972. The closest ZIP codes are 94548 (Knightsen, 3.9 mi south), 94561 (Oakley, 4 mi southwest) and 94513 (Brentwood, 7 mi south).
| ZIP code | 94511 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Bethel Island |
| State | California (CA) |
| County | Contra Costa County |
| Time zone | Pacific Time · now |
| Area code | 925 |
| Coordinates | 38.0266, -121.6425 map |
| 3-digit prefix | 945 |
Population and income in 94511
| Population | 1,864 · lower than 74% of California ZIP codes |
|---|---|
| People per square mile | 355 · lower than 58% of California ZIP codes |
| Median age | 56.6 years · higher than 90% of California ZIP codes |
| Men / women | 48% / 52% |
| Median household income | $74,972 · lower than 70% of California ZIP codes |
| Income per person | $39,932 |
| Below the poverty line | 35% |
| Bachelor’s degree or higher | 19% of adults 25+ |
| Median home value | $682,700 · higher than 52% of California ZIP codes |
| Median rent | $1,606 a month |
| Housing units | 1,038 |
| Households | 863 (2.16 people on average) |
| Owners / renters | 64% / 36% |
| Land area | 5.25 sq mi (plus 0.58 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 94511. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 94511
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 94548 | Knightsen, CA | 3.9 mi S | PO Box only |
| 94561 | Oakley, CA | 4 mi SW | Standard |
| 94513 | Brentwood, CA | 7 mi S | Standard |
| 94531 | Antioch, CA | 8.4 mi SW | Standard |
| 94505 | Discovery Bay, CA | 9.1 mi S | Standard |
| 95641 | Isleton, CA | 9.2 mi N | Standard |
| 94509 | Antioch, CA | 9.3 mi W | Standard |
| 94571 | Rio Vista, CA | 10 mi N | Standard |
| 95208 | Stockton, CA | 13.1 mi SE | PO Box only |
| 95234 | Holt, CA | 13.4 mi SE | PO Box only |
| 94512 | Birds Landing, CA | 13.9 mi NW | Standard |
| 94514 | Byron, CA | 13.9 mi S | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 94511 or measure the distance to another ZIP code.
How to address mail to 94511
PO BOX 123
BETHEL ISLAND CA 94511
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (94511-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 94511?
- 94511 is a Bethel Island, California ZIP code.
- What county is 94511 in?
- ZIP code 94511 is in Contra Costa County, California.
- What time zone is ZIP code 94511 in?
- 94511 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 94511?
- Phone numbers in ZIP code 94511 use area code 925.
- What is the population of ZIP code 94511?
- About 1,864 people live in ZIP code 94511, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 94511?
- The median household income in 94511 is $74,972 a year, lower than 70% of California ZIP codes.
- Can I use 94511 for a street address?
- No. 94511 is only for PO Boxes. Street addresses in Bethel Island use another ZIP code.
- What ZIP codes are near 94511?
- The nearest ZIP codes to 94511 are 94548 (Knightsen, 3.9 miles), 94561 (Oakley, 4 miles), 94513 (Brentwood, 7 miles) and 94531 (Antioch, 8.4 miles).