ZIP Code 94523 — Pleasant Hill, California
📍 ZIP code 94523 is in Pleasant Hill, Contra Costa County, California.
ZIP code 94523 is located in Pleasant Hill, Contra Costa County, California. It is a standard zip code in the Pacific Time Zone with an estimated population of 34,964. The area code for zip code 94523 is 925.
ZIP Code 94523 Map
Coordinates: 37.9541°N, 122.0761°W
ZIP Code 94523 Demographics
Population
Income & Economy
Housing
Education
Population and demographic data sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code routing data sourced from the United States Postal Service (USPS).
Affordability & Profile: ZIP 94523 in Context
The median home in 94523 is valued at $959,200 against a median household income of $136,787, a price-to-income ratio of 7.0. That is above the 6.7 median across the 1,558 California ZIP codes with published housing data, and well past the 3.0 ratio that marks an attainable market nationally, so buying here on a local median income requires substantial savings or a second income. Within Contra Costa County, 94523 ranks 26 of 40 ZIPs on affordability (1 = lowest ratio); the county median ratio is 6.8. Renting takes 21.1% of median household income (median rent $2,400 a month), under the 30% cost-burden threshold.
94523 ranks 217 of 1,558 statewide on median household income and 347 of 1,558 on median home value; its income is above the $120,565 Contra Costa County median. 63% of households own their home, in line with the 64% statewide ZIP median, making this a majority-owner ZIP. 56% of adults hold a bachelor's degree or higher, far above the 31% median, and the poverty rate is 6.4%, below the 10.8% statewide ZIP median. Unemployment stands at 3.7%.
With 4,856 residents per square mile across 7.2 square miles of land, 94523 is far denser than the statewide ZIP median of 1,120 (rank 456 of 1,558). This is predominantly single-family residential with suburban street patterns.
Ratios and ranks are computed from the ACS figures above across the 1,558 California ZIP codes with published housing data. See the 2026 California affordability report for the statewide analysis and the methodology for definitions.
Nearby Zip Codes
Cities & Places Served
ZIP code 94523 primarily serves Pleasant Hill in Contra Costa County, California.