Residential delivery area · California
ZIP Code 94551: Livermore, CA
ZIP code 94551 uses the postal name Livermore, California and lies mostly in Alameda County (63% of its land) with the rest in Contra Costa County (Census 2020 ZIP-county file). About 38,000 people live there (Census Bureau, ACS 2020-2024), the less populous of Livermore's 2 residential ZIP codes. Median household income is $145,392 (Census Bureau, ACS 2020-2024). By Census place, 16% of its land lies in Livermore; 84% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Livermore · 2 residential ZIPs
- County
- Alameda County (63%); Contra Costa County (37%)
- Census places
- Livermore
- Metro area
- San Francisco-Oakland-Fremont, CA
- House districts
- CA-14 (63%), CA-10 (37%) 119th Congress, by share of land
- State
- California
- Time zone
- Pacific
- Land area
- 82.7 sq mi · 458 people per sq mi
Where is ZIP code 94551?
94551 centers on 37.751°, -121.749° and covers 82.7 square miles of land plus 0.3 of water. It borders 8 ZIP codes: 94588, 94514, 95391, 94568, 94566, 94517, 94513, 94550.
The map draws ZIP code areas only. For the streets inside 94551, 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 94551 compare with the rest of Livermore?
| Measure | 94551 | In Livermore | In Alameda County | In CA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 37,885 | 2nd of 2 | 19th of 53 | 421st of 1,802 |
| Median household income | $145k | 2nd of 2 | 20th of 48 | 181st of 1,189 |
| Median home value | $979k | 2nd of 2 | 30th of 49 | 371st of 1,317 |
Its median household income is higher than in 96% of U.S. residential ZIP codes, and it is denser than 71% 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 94551?
The 2020 Census counted 40,358 people in 94551; the ACS, which samples households over 2020-2024, estimates 37,885. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 37,885
- 2020 Census count
- 40,358
- Households
- 14,052
- Median age
- 39.7
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 94551?
Of the 37,885 people the ACS estimates in 94551, 22.3% are under 18 and 12.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (44.5%), then Hispanic or Latino (28.1%).
- Under 1822.3%
- 18 to 6465.6%
- 65 and older12.1%
- White, not Hispanic44.5%
- Hispanic or Latino28.1%
- Asian, not Hispanic18.2%
- Other or two or more7.7%
- Black, not Hispanic1.6%
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 94551 earn?
Median household income is $145,392 (ACS 2020-2024), the 20th highest of the 48 ranked ZIP codes in Alameda County.
- Median household income
- $145,392
- Income per person
- $64,072
- Below the poverty line
- 4.8%
- Unemployed (of the labor force)
- 4.2%
- Adults 25+ with a bachelor's degree
- 48.1%
- Adjusted gross income per tax return, 2022
- $129,62719,940 returns; wages 80% 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 94551?
FHFA's house price index for 94551, built from repeat sales and appraisals of the same homes, rose 84% from 2015 to 2025 and rose 41% from 2020 to 2025, and moved −1.2% in 2025.
- Median home value (owners' estimate)
- $978,500
- Median gross rent
- $2,696
- Homes owned by their occupants
- 70.6%
- Housing units
- 14,290
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 94551?
1,362 business establishments had a location in this ZIP code in 2023, 129 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade232
- Construction180
- Professional, scientific, and technical services140
- Accommodation and food services119
- Wholesale trade109
- Other services (except public administration)106
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 94551?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 94588 | Pleasanton | 34,328 | $191k | 6.9 mi |
| 94514 | Byron | 1,953 | $77k | 8.1 mi |
| 95391 | Tracy | 25,574 | $177k | 8.5 mi |
| 94568 | Dublin | 70,803 | $214k | 8.6 mi |
| 94566 | Pleasanton | 44,222 | $191k | 8.9 mi |
| 94517 | Clayton | 12,316 | $169k | 12.5 mi |
| 94513 | Brentwood | 69,755 | $142k | 12.5 mi |
| 94550 | Livermore | 49,873 | $180k | 18.5 mi |
| 94582 | San Ramon | 47,424 | $215k | 9.1 mi (near) |
| 94506 | Danville | 27,055 | $250k+ | 9.2 mi (near) |
| 94505 | Discovery Bay | 14,970 | $147k | 11.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.