Residential delivery area · California
ZIP Code 91784: Upland, CA
ZIP code 91784 is in Upland, California, entirely in San Bernardino County (Census 2020 ZIP-county file). About 27,000 people live there (Census Bureau, ACS 2020-2024), the less populous of Upland's 2 residential ZIP codes. Median household income is $154,349 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Upland (73%) and San Antonio Heights (27%).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Upland · 2 residential ZIPs
- County
- San Bernardino County
- Census places
- Upland (73%); San Antonio Heights (27%) census-designated place
- Metro area
- Riverside-San Bernardino-Ontario, CA
- House district
- CA-28 119th Congress
- State
- California
- Time zone
- Pacific
- Land area
- 9.1 sq mi · 2,942 people per sq mi
- PO Box ZIPs
- 91785 also use the name Upland
Where is ZIP code 91784?
91784 centers on 34.141°, -117.656° and covers 9.1 square miles of land plus 0.2 of water. It borders 6 ZIP codes: 91786, 91701, 91711, 91730, 91759, 92358.
The map draws ZIP code areas only. For the streets inside 91784, 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 91784 compare with the rest of Upland?
| Measure | 91784 | In Upland | In San Bernardino County | In CA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 26,886 | 2nd of 2 | 37th of 98 | 680th of 1,802 |
| Median household income | $154k | 1st of 2 | 1st of 62 | 142nd of 1,189 |
| Median home value | $892k | 1st of 2 | 2nd of 65 | 445th of 1,317 |
Its median household income is higher than in 97% of U.S. residential ZIP codes, and it is denser than 88% 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 91784?
The 2020 Census counted 26,718 people in 91784; the ACS, which samples households over 2020-2024, estimates 26,886. Between the 2010 and 2020 censuses its population grew 3.0% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 26,886
- 2020 Census count
- 26,718+3.0% since 2010 (25,938)
- Households
- 8,993
- Median age
- 46.6
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 91784?
Of the 26,886 people the ACS estimates in 91784, 20.1% are under 18 and 21.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (49.5%), then Hispanic or Latino (27.6%).
- Under 1820.1%
- 18 to 6458.7%
- 65 and older21.2%
- White, not Hispanic49.5%
- Hispanic or Latino27.6%
- Asian, not Hispanic14.4%
- Other or two or more4.9%
- Black, not Hispanic3.6%
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 91784 earn?
Median household income is $154,349 (ACS 2020-2024), the highest of the 62 ranked ZIP codes in San Bernardino County. It is not measurably different from 2015-2019 ($160,025 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $154,349
- Income per person
- $60,591
- Below the poverty line
- 6.5%
- Unemployed (of the labor force)
- 5.5%
- Adults 25+ with a bachelor's degree
- 46.8%
- Adjusted gross income per tax return, 2022
- $135,39613,810 returns; wages 59% 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 91784?
FHFA's house price index for 91784, built from repeat sales and appraisals of the same homes, rose 74% from 2015 to 2025 and rose 44% from 2020 to 2025, and moved +0.5% in 2025.
- Median home value (owners' estimate)
- $891,600
- Median gross rent
- $2,945
- Homes owned by their occupants
- 85.3%
- Housing units
- 9,303
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 91784?
498 business establishments had a location in this ZIP code in 2023, 94 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services75
- Health care and social assistance70
- Construction49
- Retail trade48
- Accommodation and food services45
- Finance and insurance35
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 91784?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 91786 | Upland | 55,829 | $93k | 2.5 mi |
| 91701 | Rancho Cucamonga | 39,287 | $114k | 3.2 mi |
| 91711 | Claremont | 37,529 | $126k | 3.5 mi |
| 91730 | Rancho Cucamonga | 71,613 | $92k | 5.1 mi |
| 91759 | Mt Baldy | 341 | $123k | 8.8 mi |
| 92358 | Lytle Creek | 672 | $86k | 8.8 mi |
| 91737 | Rancho Cucamonga | 22,958 | $122k | 4.5 mi (near) |
| 91763 | Montclair | 37,700 | $79k | 5.4 mi (near) |
| 91764 | Ontario | 56,270 | $82k | 5.4 mi (near) |
| 91762 | Ontario | 64,235 | $84k | 5.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.