90405 ZIP Code, Santa Monica, CA

90405 is a ZIP code in Santa Monica, California in Los Angeles County. It covers 2.8 square miles of land. The closest ZIP codes are 90404, 90401 and 90291. 27,298 people live here in 14,312 households. At about 9,816 people per square mile it is built up to city-neighborhood density, and most households rent (31% own). Median household income is $121,241, above the California median of $99,122.

Quick facts

Key figures

MeasureValue
Residents27,298
Households14,312
Median household income$121,241
Income per person$100,986
Median age43.1
Homeowners31.4%
Median home value$1,929,900
Median rent$2,417
Bachelor's degree or higher70.0%
Average commute (minutes)26.8
Households with kids under 1816.4%
Moved in the past year11.3%
Below the poverty line7.8%
Broadband internet95.9%
Speak a non-English language at home25.5%

Household income

% of householdsValue
<$10K7.0%
$10–15K1.9%
$15–25K4.2%
$25–35K5.8%
$35–50K6.4%
$50–75K8.5%
$75–100K8.0%
$100–150K13.6%
$150–200K12.6%
$200K+32.0%

Age

% of all residentsValue
<109.2%
10–198.0%
20–243.0%
25–3416.6%
35–4416.1%
45–5412.8%
55–6415.1%
65–7410.4%
75+8.8%

Tenure

% of housing unitsValue
Owned, with mortgage17.2%
Owned outright11.1%
Rented61.8%
Vacant9.9%

Type of building

% of housing unitsValue
Detached house27.2%
Townhome5.0%
2–4 units13.0%
5–19 units29.8%
20+ units24.9%
Mobile / other0.1%

Businesses in 90405

1,839 business establishments with 19,145 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

90405 has 27 USPS carrier routes with 15,435 residential and 1,429 business mailboxes. Open the EDDM route map.

Carrier routes in 90405

90405 has 27 USPS carrier routes (27 city (C)) with 15,435 residential and 1,429 business mailboxes. Routes range from 299 homes (C008) to 960 homes (C020); the median route has 603 homes. The Census counted 14,312 households in 90405 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4998
500–74917
750–9992
1,000–1,4990
1,500+0

Best routes in 90405 for…

Most businesses

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

  1. Route C011 — USPS business mailboxes 192, 446 homes
  2. Route C008 — USPS business mailboxes 175, 299 homes
  3. Route C029 — USPS business mailboxes 146, 463 homes
  4. Route C025 — USPS business mailboxes 125, 370 homes
  5. Route C020 — USPS business mailboxes 120, 960 homes

Select these 5 routes on the route map

Every carrier route in 90405

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City83135$38,290———
C004City60350$94,252———
C008City299175$155,137———
C009City53133$106,970———
C010City52639$152,765———
C011City446192$98,652———
C012City7134$98,790———
C013City60364$158,417———
C014City52143$87,010———
C016City6763$144,090———
C018City52365$134,625———
C020City960120$127,274———
C021City7363$84,189———
C024City4900$125,624———
C025City370125$98,652———
C029City463146$144,090———
C030City67286$118,329———
C031City63912$84,189———
C032City61580$113,853———
C036City6364$97,325———
C037City3131$87,010———
C038City5963$125,624———
C039City62385$155,137———
C041City60417$94,252———
C042City3917$154,446———
C043City4012$98,652———
C044City65435$93,211———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 90405 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 90405

Where it ranks

Mail every home in 90405

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) 90405, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 90405 in?
90405 is a Santa Monica, CA mailing address. By land area, 100% lies inside Santa Monica.
What county is 90405 in?
90405 is in Los Angeles County.
What is the population of 90405?
About 27,298 people (±1,162), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 27,966.
What is the median household income in 90405?
$121,241 (±$17,403), 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 90405?
27 USPS carrier routes with 15,435 residential and 1,429 business mailboxes (16,864 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 90405?
The closest, measured center to center: 90404 (1.1 mi, Santa Monica), 90401 (1.2 mi, Santa Monica), 90291 (1.3 mi, Los Angeles), 90403 (1.8 mi, Santa Monica), 90402 (2.4 mi, Santa Monica) and 90066 (2.5 mi, Los Angeles).

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