Postal Codes

91784 ZIP Code

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ZIP code 91784 covers Upland, California, with a population of about 26,900 and a median household income of $157,118.

Population
26,9002,943 per square mile
Median age
467.3 points above the US average
Median household income
$157,1181.6× the California median
Poverty rate
5.2%7.2 points below the US average
Typical home value
$982,840up 23.1% in five years
Median rent
$2,7901.4× the California median
Degree or higher
48.7%13.7 points above the US average
Homeownership
86.5%21.5 points above the US average
Time zone
Pacific UTC-08:00observes daylight saving time
Businesses
458

Where 91784 is

Upland, California — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population26,900
Median age46
Family households81.4%
Born outside the US16.3%
Speaks a language other than English at home23.4%
White (non-Hispanic)51.3%
Black (non-Hispanic)3.9%
Asian (non-Hispanic)12.9%
Hispanic or Latino27.1%
Veterans5.6%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$157,118
Income per person$61,309
Poverty rate5.2%
Households on SNAP or cash assistance4.5%

Household income distribution

Under $10k2.1%
$10–15k1.7%
$15–20k0.6%
$20–25k1.5%
$25–30k1.4%
$30–35k1.3%
$35–40k1.3%
$40–45k0.4%
$45–50k2.2%
$50–60k2.9%
$60–75k5.2%
$75–100k8.4%
$100–125k9.5%
$125–150k9.4%
$150–200k16.0%
$200k or more36.2%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed13,810
Mean adjusted gross income$135,396
Returns declaring $200,000 or more18%
Returns, under $25k19.8%
Returns, $25k–$50k14.4%
Returns, $50k–$75k11.9%
Returns, $75k–$100k9.7%
Returns, $100k–$200k26.1%
Returns, $200k or more18.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$853,900
Median gross rent$2,790
Rent as a share of household income28.8%
Owner-occupied86.5%
Vacant homes3.6%
Median year built1983

What the homes are

Detached house88.6%
Attached house6.8%
2 to 4 units1.2%
5 to 19 units1.6%
20 or more units1.2%
Mobile home0.7%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$982,840as of 2026-07
Typical home value, 1 yearup 0.7%
Typical home value, 5 yearsup 23.1%
Typical home value, 10 yearsup 72.3%
Typical asking rent$4,217as of 2026-07
Typical asking rent, 1 yearup 3.3%
Typical home value since 2000
200020132026$982,840$269,093

$269,093 in 2000 to $982,840 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate5.1%
Bachelor's degree or higher48.7%
High school diploma or higher95.6%
Works from home15.1%
Drives to work alone71.5%
Takes public transport1%
Commutes 45 minutes or more23.7%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity27.1% 6.3 pts below the national average of 33.4%
Diagnosed diabetes10.9% 1.1 pts below the national average of 12%
Currently smokes8.1% 5.1 pts below the national average of 13.2%
High blood pressure34.3% same as the national average of 34.1%
Fair or poor general health17.1% 3.2 pts below the national average of 20.3%
No health insurance (18–64)5.9% 5.4 pts below the national average of 11.3%
Depression18.5% 3.4 pts below the national average of 21.9%
No leisure-time physical activity18.1% 7.3 pts below the national average of 25.4%
Arthritis26.1% 1 pts above the national average of 25.1%
Binge drinking14.5% 1.5 pts below the national average of 16%
Taking blood pressure medication75.5% 0.8 pts above the national average of 74.7%
Cancer (non-skin)9.2% 1.5 pts above the national average of 7.7%
Current asthma9.4% 1 pts below the national average of 10.4%
Coronary heart disease6.1% same as the national average of 6.2%
Routine check-up in past year75.8% 0.9 pts below the national average of 76.7%
Cholesterol screening90.3% 4.4 pts above the national average of 85.9%
Cognitive disability10.7% 4.1 pts below the national average of 14.8%
Colorectal screening65.3% 1 pts above the national average of 64.3%
COPD4.7% 1.9 pts below the national average of 6.6%
Visited a dentist69.8% 8.5 pts above the national average of 61.3%
Any disability25.3% 5.4 pts below the national average of 30.7%
Lacks emotional support24.2% 0.6 pts below the national average of 24.8%
Food insecurity9.7% 7.4 pts below the national average of 17.1%
Received food stamps8% 6.3 pts below the national average of 14.3%
Hearing disability6.2% 0.5 pts below the national average of 6.7%
High cholesterol38.4% 2.2 pts above the national average of 36.2%
Housing insecurity8.5% 5.3 pts below the national average of 13.8%
Independent living disability6.1% 2.3 pts below the national average of 8.4%
Lacks transport5.7% 3.5 pts below the national average of 9.2%
Loneliness32.9% 1.5 pts below the national average of 34.4%
Mammography use77.2% 1.3 pts above the national average of 75.9%
Poor mental health (14+ days)13.6% 3.2 pts below the national average of 16.8%
Mobility disability11.8% 2.2 pts below the national average of 14%
Poor physical health (14+ days)11.8% 1.7 pts below the national average of 13.5%
Self-care disability3% 1 pts below the national average of 4%
Utility shut-off threat4.3% 4.5 pts below the national average of 8.8%
Sleeps under 7 hours32.5% 3.9 pts below the national average of 36.4%
Stroke3.1% same as the national average of 3.4%
All natural teeth lost5.6% 7.4 pts below the national average of 13%
Vision disability4% 1.6 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments458
People employed3,547
Annual payroll$130,712,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 91.7% of US census tracts
FEMA ratingRelatively Moderate to Relatively High across the 8 census tracts this ZIP code covers
Expected annual loss94.5 out of 100
Community resilience19.4 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

River flooding97.2Very High at its worst in this ZIP code
Earthquake90.7Relatively High at its worst in this ZIP code
Wildfire69.8Very High at its worst in this ZIP code
Landslide68.7Relatively Low at its worst in this ZIP code
Heat wave43Relatively Moderate at its worst in this ZIP code
Hail36.3Relatively Low at its worst in this ZIP code
Strong wind26.7Relatively Low at its worst in this ZIP code
Lightning17.9Relatively Low at its worst in this ZIP code
Tornado16.1Very Low at its worst in this ZIP code
Winter weather15.5Very Low at its worst in this ZIP code
Cold wave6.2Very Low at its worst in this ZIP code
Compared with California and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPCaliforniaUnited States
Median household income$157,118$96,334$78,538
Income per person$61,309$47,977$43,289
Poverty rate5.2%12%12.4%
Median home value$853,900$695,400$303,400
Median gross rent$2,790$1,956$1,348
Homeownership86.5%55.8%65%
Bachelor's degree or higher48.7%36.5%35%
Unemployment rate5.1%6.4%5.2%
Works from home15.1%15.5%13.5%
Born outside the US16.3%26.7%13.9%
Median age4637.638.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationONTARIO INTL AP, CA US10.8 km away
Rain in a year12 in

Average high and low by month

January67.7°F / 44.6°F2.57 in rain
February68.1°F / 46.2°F3.07 in rain
March71.7°F / 48.7°F1.64 in rain
April75.7°F / 51.1°F0.76 in rain
May79.8°F / 55.6°F0.3 in rain
June86.4°F / 60°F0.02 in rain
July93.8°F / 64.7°F0.05 in rain
August94.9°F / 65.2°F0.03 in rain
September91.3°F / 63.8°F0.1 in rain
October82.6°F / 57.1°F0.41 in rain
November74.7°F / 49°F0.8 in rain
December66.9°F / 43.6°F1.89 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarket38% of this ZIP code's area
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

Upland Unified School District99.1% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability19more vulnerable than 19% of US census tracts
Socioeconomic status19more vulnerable than 19% of US census tracts
Household characteristics38more vulnerable than 38% of US census tracts
Racial and ethnic minority status65more vulnerable than 65% of US census tracts
Housing type and transport17more vulnerable than 17% of US census tracts
Walkability6.9 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

91785 Upland, CA3 km away
91786 Upland, CA3 km away
91701 Rancho Cucamonga, CA5.4 km away
91711 Claremont, CA6.6 km away
91730 Rancho Cucamonga, CA7 km away
91729 Rancho Cucamonga, CA7.1 km away
91737 Rancho Cucamonga, CA7.2 km away
91764 Ontario, CA7.8 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

San Bernardino County100% of this ZIP code's land area
Time zonePacific (UTC-08:00 standard)
Daylight saving timeObserved
Land area9.14 sq mi
Water area0.19 sq mi
Population density2,943 people per sq mi
Latitude, longitude34.1410, -117.6581

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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