94080 ZIP Code, South San Francisco, CA

94080 is a ZIP code in South San Francisco, California in San Mateo County. It covers 10 square miles of land. The closest ZIP codes are 94066, 94005 and 94014. 64,761 people live here in 21,966 households, more than in 9 of every 10 California ZIP codes. At about 6,363 people per square mile it is built up to city-neighborhood density, and owners and renters are mixed (59% own). Median household income is $136,733, above the California median of $99,122.

Quick facts

Key figures

MeasureValue
Residents64,761
Households21,966
Median household income$136,733
Income per person$62,585
Median age43.1
Homeowners58.9%
Median home value$1,188,700
Median rent$2,809
Bachelor's degree or higher40.8%
Average commute (minutes)25.6
Households with kids under 1828.9%
Moved in the past year7.9%
Below the poverty line6.7%
Broadband internet95.6%
Speak a non-English language at home53.9%

Household income

% of householdsValue
<$10K3.0%
$10–15K1.6%
$15–25K3.8%
$25–35K3.8%
$35–50K6.5%
$50–75K9.6%
$75–100K10.7%
$100–150K15.4%
$150–200K14.6%
$200K+31.1%

Age

% of all residentsValue
<109.3%
10–1910.2%
20–245.3%
25–3412.5%
35–4415.3%
45–5414.1%
55–6414.2%
65–7411.9%
75+7.1%

Tenure

% of housing unitsValue
Owned, with mortgage36.4%
Owned outright18.8%
Rented37.7%
Vacant7.1%

Type of building

% of housing unitsValue
Detached house58.5%
Townhome9.8%
2–4 units5.9%
5–19 units7.6%
20+ units16.6%
Mobile / other1.5%

Businesses in 94080

2,268 business establishments with 62,055 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

94080 has 48 USPS carrier routes with 22,939 residential and 2,387 business mailboxes. Open the EDDM route map.

Carrier routes in 94080

94080 has 48 USPS carrier routes (48 city (C)) with 22,939 residential and 2,387 business mailboxes. Routes range from 42 homes (C026) to 792 homes (C043); the median route has 515 homes. The Census counted 21,966 households in 94080 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2495
250–49918
500–74924
750–9991
1,000–1,4990
1,500+0

Best routes in 94080 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

  1. Route C026 — USPS business mailboxes 379, 42 homes
  2. Route C021 — USPS business mailboxes 237, 346 homes
  3. Route C028 — USPS business mailboxes 219, 142 homes
  4. Route C027 — USPS business mailboxes 216, 391 homes
  5. Route C043 — USPS business mailboxes 153, 792 homes

Select these 5 routes on the route map

Every carrier route in 94080

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City62713$67,467———
C003City4221$113,082———
C004City4430$145,914———
C005City65458$137,660———
C006City6012$115,083———
C007City5724$175,531———
C009City57351$137,660———
C010City35653$113,082———
C011City56217$113,082———
C012City6240$116,855———
C013City7134$170,070———
C014City56929$170,070———
C015City5211$116,855———
C016City52217$138,492———
C017City5600$195,527———
C018City39459$141,584———
C019City331104$141,584———
C020City52354$124,705———
C021City346237$155,130———
C022City53932$67,467———
C023City187118$155,130———
C024City45212$141,584———
C026City42379$155,130———
C027City391216$155,130———
C028City142219$155,130———
C029City4310$95,833———
C030City3242$129,601———
C031City317107$124,705———
C034City42661$86,452———
C035City183114$155,130———
C036City70923$133,443———
C037City3590$124,705———
C038City6310$137,660———
C039City5090$138,492———
C041City66715$155,130———
C042City62514$96,968———
C043City792153$155,130———
C044City4671$129,381———
C045City7305$137,496———
C046City6001$96,968———
C050City65619$133,443———
C051City5962$89,255———
C052City58327$122,001———
C053City45216$117,669———
C055City3561$189,527———
C056City33016$175,283———
C057City3580$189,527———
C058City172130$155,130———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 94080 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

Areas that include 94080

Mail every home in 94080

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 94080, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 94080 in?
94080 is a South San Francisco, CA mailing address. By land area, 88% lies inside South San Francisco; the rest is outside any Census-defined city or community.
What county is 94080 in?
94080 is in San Mateo County.
What is the population of 94080?
About 64,761 people (±438), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 66,592.
What is the median household income in 94080?
$136,733 (±$8,111), compared with $99,122 for California as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 94080?
48 USPS carrier routes with 22,939 residential and 2,387 business mailboxes (25,327 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 94080?
The closest, measured center to center: 94066 (2.2 mi, San Bruno), 94005 (2.4 mi, Brisbane), 94014 (2.9 mi, Daly City), 94128 (3 mi, South San Francisco), 94015 (3.9 mi, Daly City) and 94030 (3.9 mi, Millbrae).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.