Residential delivery area · California
ZIP Code 94523: Pleasant Hill, CA
ZIP code 94523 is in Pleasant Hill, California, entirely in Contra Costa County (Census 2020 ZIP-county file). About 35,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $142,586 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Pleasant Hill · its only residential ZIP
- County
- Contra Costa County
- Census places
- Pleasant Hill
- Metro area
- San Francisco-Oakland-Fremont, CA
- House district
- CA-10 119th Congress
- State
- California
- Time zone
- Pacific
- Land area
- 7.2 sq mi · 4,800 people per sq mi
Where is ZIP code 94523?
94523 centers on 37.954°, -122.076° and covers 7.2 square miles of land plus 0.0 of water. It borders 5 ZIP codes: 94597, 94518, 94520, 94549, 94553.
The map draws ZIP code areas only. For the streets inside 94523, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 94523 compare with the rest of Contra Costa County?
| Measure | 94523 | In Contra Costa County | In CA |
|---|---|---|---|
| People (ACS 2020-2024) | 34,592 | 15th of 48 | 498th of 1,802 |
| Median household income | $143k | 17th of 41 | 194th of 1,189 |
| Median home value | $1.08M | 17th of 43 | 304th of 1,317 |
Its median household income is higher than in 95% of U.S. residential ZIP codes, and it is denser than 93% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 94523?
The 2020 Census counted 35,272 people in 94523; the ACS, which samples households over 2020-2024, estimates 34,592. Between the 2010 and 2020 censuses its population grew 5.1% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 34,592
- 2020 Census count
- 35,272+5.1% since 2010 (33,569)
- Households
- 13,452
- Median age
- 42.0
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 94523?
Of the 34,592 people the ACS estimates in 94523, 20.2% are under 18 and 17.7% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (55.4%), then Asian (not Hispanic) (16.7%).
- Under 1820.2%
- 18 to 6462.0%
- 65 and older17.7%
- White, not Hispanic55.4%
- Asian, not Hispanic16.7%
- Hispanic or Latino14.8%
- Other or two or more9.3%
- Black, not Hispanic3.9%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 94523 earn?
Median household income is $142,586 (ACS 2020-2024), the 17th highest of the 41 ranked ZIP codes in Contra Costa County. It is not measurably different from 2015-2019 ($144,255 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $142,586
- Income per person
- $65,935
- Below the poverty line
- 7.4%
- Unemployed (of the labor force)
- 4.8%
- Adults 25+ with a bachelor's degree
- 55.1%
- Adjusted gross income per tax return, 2022
- $138,18516,940 returns; wages 71% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 94523?
FHFA's house price index for 94523, built from repeat sales and appraisals of the same homes, rose 69% from 2015 to 2025 and rose 33% from 2020 to 2025, and moved +0.6% in 2025.
- Median home value (owners' estimate)
- $1,076,600
- Median gross rent
- $2,501
- Homes owned by their occupants
- 62.3%
- Housing units
- 14,133
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 94523?
1,135 business establishments had a location in this ZIP code in 2023, 3 more than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance187
- Professional, scientific, and technical services154
- Retail trade132
- Accommodation and food services123
- Construction117
- Other services (except public administration)102
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 94523?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 94597 | Walnut Creek | 23,129 | $132k | 2.5 mi |
| 94518 | Concord | 27,345 | $112k | 2.9 mi |
| 94520 | Concord | 37,381 | $83k | 3.5 mi |
| 94549 | Lafayette | 28,420 | $235k | 4.4 mi |
| 94553 | Martinez | 48,643 | $124k | 4.7 mi |
| 94519 | Concord | 19,058 | $122k | 4.2 mi (near) |
| 94598 | Walnut Creek | 27,206 | $186k | 4.2 mi (near) |
| 94596 | Walnut Creek | 23,417 | $136k | 5.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.