Residential delivery area · California
ZIP Code 94588: Pleasanton, CA
ZIP code 94588 uses the postal name Pleasanton, California and lies mostly in Alameda County (51% of its land) with the rest in Contra Costa County (Census 2020 ZIP-county file). About 34,000 people live there (Census Bureau, ACS 2020-2024), the less populous of Pleasanton's 2 residential ZIP codes. Median household income is $191,073 (Census Bureau, ACS 2020-2024). By Census place, 32% of its land lies in Pleasanton, and 5% in smaller places; 63% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Pleasanton · 2 residential ZIPs
- County
- Alameda County (51%); Contra Costa County (49%)
- Census places
- Pleasanton
- Metro area
- San Francisco-Oakland-Fremont, CA
- House districts
- CA-14 (51%), CA-10 (49%) 119th Congress, by share of land
- State
- California
- Time zone
- Pacific
- Land area
- 32.7 sq mi · 1,049 people per sq mi
Where is ZIP code 94588?
94588 centers on 37.793°, -121.863° and covers 32.7 square miles of land plus 0.4 of water. It borders 9 ZIP codes: 94506, 94582, 94568, 94551, 94517, 94552, 94566, 94598, 94586.
The map draws ZIP code areas only. For the streets inside 94588, 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 94588 compare with the rest of Pleasanton?
| Measure | 94588 | In Pleasanton | In Alameda County | In CA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 34,328 | 2nd of 2 | 24th of 53 | 504th of 1,802 |
| Median household income | $191k | 2nd of 2 | 9th of 48 | 64th of 1,189 |
| Median home value | $1.38M | 2nd of 2 | 9th of 49 | 168th of 1,317 |
Its median household income is higher than in 99% of U.S. residential ZIP codes, and it is denser than 79% 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 94588?
The 2020 Census counted 36,398 people in 94588; the ACS, which samples households over 2020-2024, estimates 34,328. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 34,328
- 2020 Census count
- 36,398
- Households
- 12,465
- Median age
- 41.3
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 94588?
Of the 34,328 people the ACS estimates in 94588, 22.6% are under 18 and 15.8% are 65 or older. The largest group by race and Hispanic origin is Asian (not Hispanic) (48.3%), then White (not Hispanic) (32.0%).
- Under 1822.6%
- 18 to 6461.5%
- 65 and older15.8%
- Asian, not Hispanic48.3%
- White, not Hispanic32.0%
- Hispanic or Latino12.6%
- Other or two or more4.6%
- Black, not Hispanic2.5%
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 94588 earn?
Median household income is $191,073 (ACS 2020-2024), the 9th highest of the 48 ranked ZIP codes in Alameda County.
- Median household income
- $191,073
- Income per person
- $84,148
- Below the poverty line
- 6.1%
- Unemployed (of the labor force)
- 5.9%
- Adults 25+ with a bachelor's degree
- 70.9%
- Adjusted gross income per tax return, 2022
- $217,89815,840 returns; wages 73% 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 94588?
FHFA's house price index for 94588, built from repeat sales and appraisals of the same homes, rose 77% from 2015 to 2025 and rose 45% from 2020 to 2025, and moved −2.6% in 2025.
- Median home value (owners' estimate)
- $1,384,300
- Median gross rent
- $3,317
- Homes owned by their occupants
- 63.1%
- Housing units
- 12,797
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 94588?
1,806 business establishments had a location in this ZIP code in 2023, 39 fewer than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services401
- Health care and social assistance221
- Retail trade170
- Accommodation and food services145
- Administrative and support and waste management and remediation services138
- Finance and insurance117
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 94588?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 94506 | Danville | 27,055 | $250k+ | 2.4 mi |
| 94582 | San Ramon | 47,424 | $215k | 3.4 mi |
| 94568 | Dublin | 70,803 | $214k | 5.7 mi |
| 94551 | Livermore | 37,885 | $145k | 6.9 mi |
| 94517 | Clayton | 12,316 | $169k | 7.0 mi |
| 94552 | Castro Valley | 14,506 | $213k | 9.9 mi |
| 94566 | Pleasanton | 44,222 | $191k | 10.0 mi |
| 94598 | Walnut Creek | 27,206 | $186k | 11.9 mi |
| 94586 | Sunol | 971 | $205k | 15.6 mi |
| 94528 | Diablo | 1,049 | $208k | 6.2 mi (near) |
| 94526 | Danville | 32,584 | $225k | 6.8 mi (near) |
| 94583 | San Ramon | 39,583 | $185k | 7.1 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.