Residential delivery area · California
ZIP Code 92378: Lake Arrowhead (Rimforest), CA
ZIP code 92378 is in Lake Arrowhead (postal name Rimforest), California, entirely in San Bernardino County (Census 2020 ZIP-county file). About 320 people live there (Census Bureau, ACS 2020-2024). Median household income is $105,294 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Lake Arrowhead (a census-designated place).
- ACS2020-24
- Census2020
- FHFA2024
- ZBP2023
- Town
- Rimforest · its only residential ZIP
- County
- San Bernardino County
- Census places
- Lake Arrowhead census-designated place
- Metro area
- Riverside-San Bernardino-Ontario, CA
- House district
- CA-23 119th Congress
- State
- California
- Time zone
- Pacific
- Land area
- 0.8 sq mi · 393 people per sq mi
Where is ZIP code 92378?
92378 centers on 34.232°, -117.225° and covers 0.8 square miles of land. It borders 3 ZIP codes: 92391, 92317, 92385.
The map draws ZIP code areas only. For the streets inside 92378, 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 92378 compare with the rest of San Bernardino County?
| Measure | 92378 | In San Bernardino County | In CA |
|---|---|---|---|
| People (ACS 2020-2024) | 315 | 88th of 98 | 1,590th of 1,802 |
| Median household income | $105k | not ranked | not ranked |
| Median home value | $462k | not ranked | not ranked |
92378's income and home value are not ranked: it has fewer than 1,000 residents (315). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 70% of 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 92378?
The 2020 Census counted 677 people in 92378; the ACS, which samples households over 2020-2024, estimates 315. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 315±137 (90% margin)
- 2020 Census count
- 677
- Households
- 180
- Median age
- 50.2
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 92378?
Of the 315 people the ACS estimates in 92378, 8.3% are under 18 and 9.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (54.3%), then Hispanic or Latino (45.1%).
- Under 188.3%
- 18 to 6482.2%
- 65 and older9.5%
- White, not Hispanic54.3%
- Hispanic or Latino45.1%
- Asian, not Hispanic0.6%
- Black, not Hispanic0.0%
- Other or two or more0.0%
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 92378 earn?
Median household income is $105,294 (ACS 2020-2024).
- Median household income
- $105,294±$93,984
- Income per person
- $63,322
- Below the poverty line
- 11.4%
- Unemployed (of the labor force)
- 0.0%
- Adults 25+ with a bachelor's degree
- 41.9%
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 92378?
- Median home value (owners' estimate)
- $461,500
- Median gross rent
- –
- Homes owned by their occupants
- 81.7%
- Housing units
- 296
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 92378?
30 business establishments had a location in this ZIP code in 2023, 3 fewer than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction6
- Retail trade5
- Other services (except public administration)5
- Professional, scientific, and technical services4
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 92378?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 92391 | Twin Peaks | 2,254 | $82k | 0.9 mi |
| 92317 | Blue Jay | 916 | $99k | 1.3 mi |
| 92385 | Skyforest | 198 | – | 1.3 mi |
| 92325 | Crestline | 9,065 | $71k | 3.1 mi (near) |
| 92352 | Lake Arrowhead | 6,246 | $106k | 3.3 mi (near) |
| 92404 | San Bernardino | 63,243 | $67k | 3.8 mi (near) |
| 92321 | Cedar Glen | 724 | $124k | 4.6 mi (near) |
| 92322 | Cedarpines Park | 770 | $149k | 5.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.