Residential delivery area · California
ZIP Code 91766: Pomona, CA
ZIP code 91766 is in Pomona, California, mostly in Los Angeles County (96% of its land) with the rest in San Bernardino County (Census 2020 ZIP-county file). About 69,000 people live there (Census Bureau, ACS 2020-2024), the most populous of Pomona's 3 residential ZIP codes. Median household income is $81,991 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Pomona · 3 residential ZIPs
- County
- Los Angeles County (96%); San Bernardino County (4%)
- Census places
- Pomona
- Neighborhood
- Spadra GeoNames
- Metro area
- Los Angeles-Long Beach-Anaheim, CA
- House districts
- CA-35 (95%), CA-38 (5%) 119th Congress, by share of land
- State
- California
- Time zone
- Pacific
- Land area
- 10.1 sq mi · 6,865 people per sq mi
- PO Box ZIPs
- 91769 also use the name Pomona
Where is ZIP code 91766?
91766 centers on 34.042°, -117.756° and covers 10.1 square miles of land plus 0.0 of water. It borders 6 ZIP codes: 91768, 91767, 91763, 91710, 91765, 91709.
The map draws ZIP code areas only. For the streets inside 91766, 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); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 91766 compare with the rest of Pomona?
| Measure | 91766 | In Pomona | In Los Angeles County | In CA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 69,327 | 1st of 3 | 19th of 301 | 67th of 1,802 |
| Median household income | $82k | 1st of 3 | 177th of 265 | 810th of 1,189 |
| Median home value | $599k | 2nd of 3 | 243rd of 273 | 831st of 1,317 |
Its median household income is higher than in 64% of U.S. residential ZIP codes, and it is denser than 96% of all 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 91766?
The 2020 Census counted 70,701 people in 91766; the ACS, which samples households over 2020-2024, estimates 69,327. Between the 2010 and 2020 censuses its population fell 1.3% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 69,327
- 2020 Census count
- 70,701−1.3% since 2010 (71,599)
- Households
- 19,723
- Median age
- 35.4
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 91766?
Of the 69,327 people the ACS estimates in 91766, 23.0% are under 18 and 13.2% are 65 or older. The largest group by race and Hispanic origin is Hispanic or Latino (71.8%), then Asian (not Hispanic) (12.8%).
- Under 1823.0%
- 18 to 6463.8%
- 65 and older13.2%
- Hispanic or Latino71.8%
- Asian, not Hispanic12.8%
- White, not Hispanic7.6%
- Black, not Hispanic4.9%
- Other or two or more2.9%
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 91766 earn?
Median household income is $81,991 (ACS 2020-2024), the 177th highest of the 265 ranked ZIP codes in Los Angeles County. It rose from $73,397 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $81,991
- Income per person
- $29,196
- Below the poverty line
- 14.1%
- Unemployed (of the labor force)
- 5.7%
- Adults 25+ with a bachelor's degree
- 20.3%
- Adjusted gross income per tax return, 2022
- $54,80931,100 returns; wages 83% of AGI (IRS)
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 91766?
FHFA's house price index for 91766, built from repeat sales and appraisals of the same homes, rose 95% from 2015 to 2025 and rose 49% from 2020 to 2025, and moved +4.5% in 2025.
- Median home value (owners' estimate)
- $599,000
- Median gross rent
- $1,842
- Homes owned by their occupants
- 54.4%
- Housing units
- 20,445
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 91766?
1,067 business establishments had a location in this ZIP code in 2023, 90 more than in 2018; the most are in wholesale trade (ZIP Code Business Patterns).
- Wholesale trade127
- Retail trade116
- Transportation and warehousing113
- Other services (except public administration)110
- Accommodation and food services109
- Construction99
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 91766?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 91768 | Pomona | 34,200 | $76k | 2.5 mi |
| 91767 | Pomona | 49,152 | $79k | 3.0 mi |
| 91763 | Montclair | 37,700 | $79k | 3.9 mi |
| 91710 | Chino | 78,754 | $103k | 4.9 mi |
| 91765 | Diamond Bar | 44,502 | $106k | 5.1 mi |
| 91709 | Chino Hills | 78,006 | $126k | 7.1 mi |
| 91762 | Ontario | 64,235 | $84k | 5.1 mi (near) |
| 91773 | San Dimas | 33,598 | $105k | 5.4 mi (near) |
| 91789 | Walnut | 40,298 | $126k | 5.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.