90638 ZIP Code, La Mirada, CA
90638 is a ZIP code in La Mirada, California in Los Angeles County. It covers 7.8 square miles of land. The closest ZIP codes are 90639, 90604 and 90621. 45,933 people live here in 15,421 households. At about 5,927 people per square mile it is built up to city-neighborhood density, and most homes are owner-occupied (76%). Median household income is $109,649, above the California median of $99,122.
Quick facts
- Mailing city: La Mirada, CA
- County: Los Angeles County
- Land area: 7.8 sq mi
- Population: 45,933
- Median household income: $109,649
- Carrier routes: 32 (15,254 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 45,933 |
| Households | 15,421 |
| Median household income | $109,649 |
| Income per person | $44,752 |
| Median age | 44.2 |
| Homeowners | 76.2% |
| Median home value | $827,300 |
| Median rent | $2,217 |
| Bachelor's degree or higher | 40.9% |
| Average commute (minutes) | 32.4 |
| Households with kids under 18 | 30.4% |
| Moved in the past year | 6.6% |
| Below the poverty line | 6.2% |
| Broadband internet | 96.1% |
| Speak a non-English language at home | 44.3% |
Household income
| % of households | Value |
|---|---|
| <$10K | 3.7% |
| $10–15K | 2.4% |
| $15–25K | 6.0% |
| $25–35K | 3.8% |
| $35–50K | 5.0% |
| $50–75K | 14.3% |
| $75–100K | 9.8% |
| $100–150K | 21.2% |
| $150–200K | 14.5% |
| $200K+ | 19.3% |
Age
| % of all residents | Value |
|---|---|
| <10 | 9.7% |
| 10–19 | 12.1% |
| 20–24 | 6.8% |
| 25–34 | 10.1% |
| 35–44 | 12.2% |
| 45–54 | 13.9% |
| 55–64 | 13.4% |
| 65–74 | 11.0% |
| 75+ | 10.8% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 50.5% |
| Owned outright | 24.0% |
| Rented | 23.1% |
| Vacant | 2.5% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 78.5% |
| Townhome | 4.5% |
| 2–4 units | 1.3% |
| 5–19 units | 4.6% |
| 20+ units | 9.8% |
| Mobile / other | 1.3% |
Businesses in 90638
1,099 business establishments with 17,603 employees (ZIP Codes Business Patterns 2023).
- Wholesale Trade: 143
- Health Care and Social Assistance: 123
- Retail Trade: 121
- Accommodation and Food Services: 119
- Other Services (except Public Administration): 91
- Professional, Scientific, and Technical Services: 89
- Construction: 87
- Transportation and Warehousing: 73
EDDM carrier routes
90638 has 32 USPS carrier routes with 15,254 residential and 930 business mailboxes. Open the EDDM route map.
Carrier routes in 90638
90638 has 32 USPS carrier routes (32 city (C)) with 15,254 residential and 930 business mailboxes. Routes range from 144 homes (C018) to 758 homes (C006); the median route has 484 homes. The Census counted 15,421 households in 90638 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 2 |
| 250–499 | 18 |
| 500–749 | 11 |
| 750–999 | 1 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 90638 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C018 — USPS business mailboxes 164, 144 homes
- Route C033 — USPS business mailboxes 151, 245 homes
- Route C024 — USPS business mailboxes 107, 484 homes
- Route C013 — USPS business mailboxes 79, 649 homes
- Route C011 — USPS business mailboxes 71, 562 homes
Select these 5 routes on the route map
Every carrier route in 90638
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C001 | City | 484 | 9 | $117,261 | — | — | — |
| C004 | City | 446 | 1 | $115,264 | — | — | — |
| C006 | City | 758 | 12 | $145,241 | — | — | — |
| C007 | City | 508 | 1 | $69,497 | — | — | — |
| C011 | City | 562 | 71 | $188,504 | — | — | — |
| C012 | City | 551 | 4 | $121,694 | — | — | — |
| C013 | City | 649 | 79 | $60,664 | — | — | — |
| C014 | City | 528 | 1 | $101,112 | — | — | — |
| C015 | City | 420 | 0 | $106,436 | — | — | — |
| C016 | City | 485 | 1 | $151,993 | — | — | — |
| C017 | City | 555 | 2 | $100,000 | — | — | — |
| C018 | City | 144 | 164 | — | — | — | — |
| C019 | City | 407 | 62 | $127,396 | — | — | — |
| C020 | City | 497 | 2 | $111,181 | — | — | — |
| C021 | City | 436 | 0 | $128,478 | — | — | — |
| C022 | City | 428 | 4 | $92,760 | — | — | — |
| C023 | City | 404 | 9 | $69,510 | — | — | — |
| C024 | City | 484 | 107 | $75,500 | — | — | — |
| C025 | City | 532 | 6 | $100,000 | — | — | — |
| C027 | City | 444 | 24 | $94,043 | — | — | — |
| C028 | City | 417 | 1 | $91,993 | — | — | — |
| C029 | City | 523 | 45 | $125,101 | — | — | — |
| C032 | City | 302 | 56 | — | — | — | — |
| C033 | City | 245 | 151 | — | — | — | — |
| C035 | City | 644 | 0 | $69,497 | — | — | — |
| C036 | City | 504 | 2 | $117,261 | — | — | — |
| C037 | City | 645 | 68 | $92,760 | — | — | — |
| C038 | City | 452 | 1 | $69,510 | — | — | — |
| C041 | City | 411 | 43 | $147,027 | — | — | — |
| C043 | City | 449 | 1 | $118,975 | — | — | — |
| C044 | City | 486 | 1 | $126,904 | — | — | — |
| C046 | City | 454 | 2 | $75,500 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 90638 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
- 90639 — La Mirada city, CA (0.4 mi)
- 90604 — South Whittier CDP, CA (1.8 mi)
- 90621 — Buena Park city, CA (2.1 mi)
- 90603 — Whittier city, CA (3.1 mi)
- 92833 — Fullerton city, CA (3.1 mi)
- 90605 — Whittier city, CA (3.6 mi)
- 90670 — Santa Fe Springs city, CA (3.8 mi)
- 90620 — Buena Park city, CA (3.9 mi)
Areas that include 90638
- La Mirada, CA ZIP codes — 2 ZIP codes
- Los Angeles County ZIP codes — 298 ZIP codes
- California ZIP code data
Mail every home in 90638
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) 90638, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 90638 in?
- 90638 is a La Mirada, CA mailing address. By land area, 99% lies inside La Mirada.
- What county is 90638 in?
- 90638 is in Los Angeles County.
- What is the population of 90638?
- About 45,933 people (±319), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 46,967.
- What is the median household income in 90638?
- $109,649 (±$7,134), 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 90638?
- 32 USPS carrier routes with 15,254 residential and 930 business mailboxes (16,184 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 90638?
- The closest, measured center to center: 90639 (0.4 mi, La Mirada), 90604 (1.8 mi, South Whittier), 90621 (2.1 mi, Buena Park), 90603 (3.1 mi, Whittier), 92833 (3.1 mi, Fullerton) and 90605 (3.6 mi, Whittier).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.