94123 ZIP Code, San Francisco, CA

94123 is a ZIP code in San Francisco, California in San Francisco County. It covers 1.1 square miles of land. The closest ZIP codes are 94109, 94115 and 94133. 24,054 people live here in 12,605 households. It is densely built, at about 22,418 people per square mile, and most households rent (30% own). Median household income is $218,603, well above the California median of $99,122; 25% of residents moved in during the past year.

Quick facts

Key figures

MeasureValue
Residents24,054
Households12,605
Median household income$218,603
Income per person$170,097
Median age32.9
Homeowners30.4%
Median home value$2,000,000+
Median rent$3,289
Bachelor's degree or higher83.9%
Average commute (minutes)32
Households with kids under 1813.9%
Moved in the past year25.2%
Below the poverty line4.9%
Broadband internet96.6%
Speak a non-English language at home18.1%

Household income

% of householdsValue
<$10K3.2%
$10–15K1.4%
$15–25K1.1%
$25–35K0.7%
$35–50K3.2%
$50–75K4.7%
$75–100K6.4%
$100–150K11.7%
$150–200K13.1%
$200K+54.5%

Age

% of all residentsValue
<109.4%
10–195.8%
20–245.6%
25–3435.1%
35–4413.0%
45–5410.8%
55–648.7%
65–745.4%
75+6.3%

Tenure

% of housing unitsValue
Owned, with mortgage14.6%
Owned outright10.8%
Rented58.0%
Vacant16.7%

Type of building

% of housing unitsValue
Detached house9.8%
Townhome7.3%
2–4 units27.0%
5–19 units41.5%
20+ units14.5%
Mobile / other0.0%

Businesses in 94123

1,125 business establishments with 9,873 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

94123 has 25 USPS carrier routes with 15,202 residential and 1,118 business mailboxes. Open the EDDM route map.

Carrier routes in 94123

94123 has 25 USPS carrier routes (25 city (C)) with 15,202 residential and 1,118 business mailboxes. Routes range from 342 homes (C005) to 868 homes (C043); the median route has 602 homes. The Census counted 12,605 households in 94123 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4996
500–74912
750–9997
1,000–1,4990
1,500+0

Best routes in 94123 for…

Most businesses

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

  1. Route C034 — USPS business mailboxes 208, 487 homes
  2. Route C023 — USPS business mailboxes 187, 524 homes
  3. Route C009 — USPS business mailboxes 135, 442 homes
  4. Route C026 — USPS business mailboxes 106, 576 homes
  5. Route C019 — USPS business mailboxes 100, 547 homes

Select these 5 routes on the route map

Every carrier route in 94123

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City8107$185,122———
C004City65462$185,122———
C005City3422$200,001+———
C006City60723$200,001+———
C007City76024$171,221———
C008City4434$200,001+———
C009City442135$200,001+———
C010City8191$173,846———
C015City6051$200,001+———
C017City5796$200,001+———
C018City4871$198,608———
C019City547100$200,001+———
C023City524187$200,001+———
C024City63811$189,368———
C025City3662$200,001+———
C026City576106$113,911———
C027City50059$200,001+———
C030City6023$200,001+———
C034City487208$133,301———
C035City7803$171,221———
C037City5319$200,001+———
C039City71059$198,608———
C041City77159$173,846———
C042City75446$200,001+———
C043City8680$198,608———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 94123 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 94123

Where it ranks

Mail every home in 94123

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.

San Francisco EDDM mailing

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 94123, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 94123 in?
94123 is a San Francisco, CA mailing address. By land area, 100% lies inside San Francisco.
What county is 94123 in?
94123 is in San Francisco County.
What is the population of 94123?
About 24,054 people (±1,528), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 26,131.
What is the median household income in 94123?
$218,603 (±$13,532), 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 94123?
25 USPS carrier routes with 15,202 residential and 1,118 business mailboxes (16,321 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 94123?
The closest, measured center to center: 94109 (0.8 mi, San Francisco), 94115 (1.1 mi, San Francisco), 94133 (1.3 mi, San Francisco), 94108 (1.6 mi, San Francisco), 94102 (1.7 mi, San Francisco) and 94129 (1.7 mi, San Francisco).

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