Checked
ZIP Code 94505
Byron, CA, Contra Costa County
Population
14,970
Land area
16.7sq mi
People per sq mi
898
City
Byron
ZIP 94505 and nearby ZIP codes
ZIP 94505 at a glance
- ZIP 94505 (Byron) is about 3.6 times as dense as California as a whole.
- Households here earn a median of $146,480 a year, 48% more than the California figure of $99,122.
- A typical owner-occupied home is valued at $830,500 (13% above California) and median rent is $3,029 a month.
Local data for ZIP 94505
Counts from official public data
Housing and community stats
ZIP 94505, American Community Survey 2020-2024
Median household income
$146,480
Poverty rate
7.4%
Median home value
$830,500
Prices -4.5% in a year
Median rent
$3,029/mo
Homeownership
90.2%
Bachelor's or higher
32.6%
Median age
45.8
Average commute
44.1 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
199
ZIP Business Patterns 2023
Employees
1,170
$66.92M annual payroll
PPP loans
$14.51M
321 loans
Campaign donations
$54.92K
26% D, 26% R, 2026 cycle
Environment and hazard risk
ZIP 94505, from FEMA, NOAA and EPA
Natural hazard risk
Very High
Top: earthquake
Storm events since 1996
472
Countywide, mostly strong wind
Flood insurance policies
2,681
0.9% of homes, county
July high / Jan low
93° / 41°F
12.4 inches of rain a year
Health statistics
Share of adults in ZIP 94505, CDC PLACES estimates
Obesity
29.8%
U.S. 33.3% -3.5 pts
Diabetes
10.4%
U.S. 12.1% -1.7 pts
Smoking
10.3%
U.S. 12.8% -2.5 pts
Uninsured (18-64)
6.0%
U.S. 11.1% -5.1 pts
Cities in ZIP 94505
ZIP codes near 94505
| Name | Distance | Land area (sq mi) |
|---|---|---|
| 94514Byron | 3.9 mi | 30 |
| 94513Knightsen | 5.8 mi | 78.9 |
| 95391Mountain House | 6.4 mi | 26.9 |
| 94548Knightsen | 8.3 mi | 2.3 |
| 94561Oakley | 10 mi | 17.3 |
| 94551Livermore | 11 mi | 82.7 |
| 94511Bethel Island | 12 mi | 5.3 |
| 95219Terminous | 12 mi | 116.9 |
| 95206Country Club | 12 mi | 133.2 |
| 94531Antioch | 12 mi | 14 |
| 95376Tracy | 12 mi | 7.6 |
Frequently asked questions
- What city is ZIP code 94505?
- ZIP code 94505 is in Byron, CA (Contra Costa County).
- What county is ZIP code 94505 in?
- ZIP code 94505 is mostly in Contra Costa County, California.
- How many people live in ZIP code 94505?
- About 14,970 people live in the 94505 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.