Byron ZIP code, California
The ZIP code for Byron, CA is 94514, and its area codes are 209 and 350.
- USPS city name
- 1 ZIP code
- Overlapping the city
- 1 more
- Population
- 1,837
- County
- Contra Costa County
- State
- California
NANPA lists no telephone rate centre for Byron itself, so these are the area codes of the nearest one, Tracy (3.7 miles). A town on an area-code boundary can differ from its neighbour.
Mail addressed to Byron uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.
Byron in numbers
About 1,837 people live in Byron, in 534 households. The median household income is $76,424 a year, 23% below the California median of $99,122 (US: $80,734). The median owner-occupied home is valued at $750,000 (about the same as the California median), and median gross rent is $2,643 a month. The median age is 45.6; 15.7% of adults 25 and over hold a bachelor's degree or higher (37.1% across California); the average commute takes 38 minutes.
| Population | 1,837 |
|---|---|
| Households | 534 |
| Median age | 45.6 |
| Median household income | $76,424 |
| Median home value | $750,000 |
| Median gross rent | $2,643 |
| Bachelor's degree or higher | 15.7% |
| Mean commute | 38.1 min |
| Population density | 282 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Byron CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.
ZIP codes addressed as Byron
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
94514 | Byron , CA | Standard | 1,953 | $76,511 | $735,600 |
Other ZIP codes overlapping Byron
These ZIP codes cover part of Byron but are addressed as somewhere else.
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
94513 | Brentwood , CA | Standard | 69,755 | $142,223 | $837,800 |
Map of Byron ZIP codes
The ZIP codes of Byron, CA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Byron
The nearest larger towns are Discovery Bay (14,911 people, 3.3 mi), Brentwood (65,208 people, 5.9 mi) and Knightsen (2,264 people, 6.0 mi).
| Town | Population | Distance |
|---|---|---|
| Discovery Bay | 14,911 | 3.3 mi |
| Brentwood | 65,208 | 5.9 mi |
| Oakley | 45,183 | 8.8 mi |
| Mountain House | 25,513 | 9.2 mi |
| Antioch | 116,477 | 11.0 mi |
| Camino Tassajara | 5,831 | 14.5 mi |
| Livermore | 85,522 | 14.5 mi |
| Tracy | 96,966 | 14.6 mi |
| Blackhawk | 10,137 | 15.5 mi |
| Clayton | 10,937 | 16.3 mi |
| Pittsburg | 76,257 | 17.0 mi |
| San Ramon | 85,993 | 17.6 mi |
| Country Club | 10,161 | 17.6 mi |
| Dublin | 70,803 | 17.7 mi |
More nearby: every ZIP code in Contra Costa County · California ZIP codes
Cite this page
zipcodes.pro. “Byron, CA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ca/byron
Underlying data is public domain or openly licensed — sources, vintages and licences.