Residential delivery area · California
ZIP Code 94030: Millbrae, CA
ZIP code 94030 is in Millbrae, California, entirely in San Mateo County (Census 2020 ZIP-county file). About 23,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $163,476 (Census Bureau, ACS 2020-2024). By Census place, 95% of its land lies in Millbrae, and 2% in smaller places; 4% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Millbrae · its only residential ZIP
- County
- San Mateo County
- Census places
- Millbrae
- Metro area
- San Francisco-Oakland-Fremont, CA
- House district
- CA-15 119th Congress
- State
- California
- Time zone
- Pacific
- Land area
- 3.4 sq mi · 6,725 people per sq mi
Where is ZIP code 94030?
94030 centers on 37.600°, -122.403° and covers 3.4 square miles of land. It borders 3 ZIP codes: 94128, 94066, 94010.
The map draws ZIP code areas only. For the streets inside 94030, 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 94030 compare with the rest of San Mateo County?
| Measure | 94030 | In San Mateo County | In CA |
|---|---|---|---|
| People (ACS 2020-2024) | 22,689 | 18th of 31 | 770th of 1,802 |
| Median household income | $164k | 13th of 23 | 116th of 1,189 |
| Median home value | $1.93M | 9th of 27 | 67th of 1,317 |
Its median household income is higher than in 97% of U.S. residential ZIP codes, and it is denser than 96% 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 94030?
The 2020 Census counted 23,212 people in 94030; the ACS, which samples households over 2020-2024, estimates 22,689. Between the 2010 and 2020 censuses its population grew 7.8% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 22,689
- 2020 Census count
- 23,212+7.8% since 2010 (21,536)
- Households
- 8,121
- Median age
- 43.7
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 94030?
Of the 22,689 people the ACS estimates in 94030, 19.0% are under 18 and 20.3% are 65 or older. The largest group by race and Hispanic origin is Asian (not Hispanic) (48.1%), then White (not Hispanic) (29.4%).
- Under 1819.0%
- 18 to 6460.7%
- 65 and older20.3%
- Asian, not Hispanic48.1%
- White, not Hispanic29.4%
- Hispanic or Latino13.9%
- Other or two or more7.7%
- Black, not Hispanic0.8%
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 94030 earn?
Median household income is $163,476 (ACS 2020-2024), the 13th highest of the 23 ranked ZIP codes in San Mateo County. It is not measurably different from 2015-2019 ($157,661 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $163,476
- Income per person
- $78,551
- Below the poverty line
- 6.0%
- Unemployed (of the labor force)
- 5.7%
- Adults 25+ with a bachelor's degree
- 52.7%
- Adjusted gross income per tax return, 2022
- $173,61011,560 returns; wages 67% 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 94030?
FHFA's house price index for 94030, built from repeat sales and appraisals of the same homes, rose 28% from 2015 to 2025 and rose 42% from 2020 to 2025, and moved −1.0% in 2025.
- Median home value (owners' estimate)
- $1,934,900
- Median gross rent
- $3,272
- Homes owned by their occupants
- 60.8%
- Housing units
- 8,705
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 94030?
539 business establishments had a location in this ZIP code in 2023, 24 fewer than in 2018; the most are in accommodation and food services (ZIP Code Business Patterns).
- Accommodation and food services98
- Professional, scientific, and technical services67
- Health care and social assistance66
- Construction57
- Other services (except public administration)47
- Retail trade41
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 94030?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 94128 | San Francisco | 0 | – | 1.9 mi |
| 94066 | San Bruno | 42,728 | $141k | 2.4 mi |
| 94010 | Burlingame | 43,025 | $197k | 2.5 mi |
| 94080 | South San Francisco | 64,761 | $137k | 3.9 mi (near) |
| 94044 | Pacifica | 37,274 | $160k | 4.1 mi (near) |
| 94401 | San Mateo | 35,295 | $122k | 4.9 mi (near) |
| 94402 | San Mateo | 25,475 | $173k | 5.7 mi (near) |
| 94038 | Moss Beach | 2,683 | $100k | 5.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.