Postal Codes

91766 ZIP Code

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ZIP code 91766 covers Pomona, California, with a population of about 68,673 and a median household income of $77,699.

Population
68,6736,800 per square mile
Median age
34.93.8 points below the US average
Median household income
$77,69919% below the California median
Poverty rate
12.8%about the US average
Typical home value
$686,070up 20% in five years
Median rent
$1,7769% below the California median
Degree or higher
19.9%15.1 points below the US average
Homeownership
53.4%11.6 points below the US average
Time zone
Pacific UTC-08:00observes daylight saving time
Businesses
1,044

Where 91766 is

Pomona, 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

Population68,673
Median age34.9
Family households78.6%
Born outside the US36.6%
Speaks a language other than English at home68.9%
White (non-Hispanic)7.6%
Black (non-Hispanic)4.8%
Asian (non-Hispanic)13.3%
Hispanic or Latino72%
Veterans2.5%
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$77,699
Income per person$27,518
Poverty rate12.8%
Households on SNAP or cash assistance18.7%

Household income distribution

Under $10k5.8%
$10–15k2.8%
$15–20k2.3%
$20–25k2.5%
$25–30k2.6%
$30–35k2.7%
$35–40k4.4%
$40–45k3.4%
$45–50k3.4%
$50–60k7.8%
$60–75k10.3%
$75–100k15.0%
$100–125k12.6%
$125–150k6.6%
$150–200k9.5%
$200k or more8.4%

Income as declared to the IRS

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

Tax returns filed31,100
Mean adjusted gross income$54,809
Returns declaring $200,000 or more2.3%
Returns, under $25k31.2%
Returns, $25k–$50k31.2%
Returns, $50k–$75k16.5%
Returns, $75k–$100k8.4%
Returns, $100k–$200k10.5%
Returns, $200k or more2.3%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$568,300
Median gross rent$1,776
Rent as a share of household income33.7%
Owner-occupied53.4%
Vacant homes4%
Median year built1973

What the homes are

Detached house62.3%
Attached house7.2%
2 to 4 units8%
5 to 19 units8%
20 or more units9%
Mobile home4.6%
Boat, RV or van0.9%
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$686,070as of 2026-07
Typical home value, 1 yeardown 0.6%
Typical home value, 5 yearsup 20%
Typical home value, 10 yearsup 81.7%
Typical asking rent$2,532as of 2026-07
Typical asking rent, 1 yearup 1.4%
Typical home value since 2000
200020132026$689,871$166,243

$166,243 in 2000 to $686,070 in 2026.

Typical asking rent
202220242026$2,532$2,134

$2,134 in 2022 to $2,532 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate5.5%
Bachelor's degree or higher19.9%
High school diploma or higher70.9%
Works from home8%
Drives to work alone73.8%
Takes public transport1.2%
Commutes 45 minutes or more23%
Health

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

Obesity28.7% 4.7 pts below the national average of 33.4%
Diagnosed diabetes13.1% 1.1 pts above the national average of 12%
Currently smokes12.2% 1 pts below the national average of 13.2%
High blood pressure28.2% 5.9 pts below the national average of 34.1%
Fair or poor general health28.9% 8.6 pts above the national average of 20.3%
No health insurance (18–64)18.5% 7.2 pts above the national average of 11.3%
Depression18.8% 3.1 pts below the national average of 21.9%
No leisure-time physical activity31% 5.6 pts above the national average of 25.4%
Arthritis17.3% 7.8 pts below the national average of 25.1%
Binge drinking15.3% 0.7 pts below the national average of 16%
Taking blood pressure medication68% 6.7 pts below the national average of 74.7%
Cancer (non-skin)4.1% 3.6 pts below the national average of 7.7%
Current asthma8.9% 1.5 pts below the national average of 10.4%
Coronary heart disease4.9% 1.3 pts below the national average of 6.2%
Routine check-up in past year68.5% 8.2 pts below the national average of 76.7%
Cholesterol screening81.2% 4.7 pts below the national average of 85.9%
Cognitive disability18.4% 3.6 pts above the national average of 14.8%
Colorectal screening48.6% 15.7 pts below the national average of 64.3%
COPD4.5% 2.1 pts below the national average of 6.6%
Visited a dentist52.6% 8.7 pts below the national average of 61.3%
Any disability34.7% 4 pts above the national average of 30.7%
Lacks emotional support34.5% 9.7 pts above the national average of 24.8%
Food insecurity29% 11.9 pts above the national average of 17.1%
Received food stamps24.4% 10.1 pts above the national average of 14.3%
Hearing disability5.4% 1.3 pts below the national average of 6.7%
High cholesterol35.3% 0.9 pts below the national average of 36.2%
Housing insecurity23.5% 9.7 pts above the national average of 13.8%
Independent living disability9.8% 1.4 pts above the national average of 8.4%
Lacks transport13.6% 4.4 pts above the national average of 9.2%
Loneliness43.3% 8.9 pts above the national average of 34.4%
Mammography use73.1% 2.8 pts below the national average of 75.9%
Poor mental health (14+ days)17.6% 0.8 pts above the national average of 16.8%
Mobility disability15.4% 1.4 pts above the national average of 14%
Poor physical health (14+ days)15.5% 2 pts above the national average of 13.5%
Self-care disability5.1% 1.1 pts above the national average of 4%
Utility shut-off threat10% 1.2 pts above the national average of 8.8%
Sleeps under 7 hours38.2% 1.8 pts above the national average of 36.4%
Stroke3% same as the national average of 3.4%
All natural teeth lost12.2% 0.8 pts below the national average of 13%
Vision disability8.2% 2.6 pts above the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments1,044
People employed16,850
Annual payroll$1,002,001,000
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 88.6% of US census tracts
FEMA ratingRelatively Low to Very High across the 16 census tracts this ZIP code covers
Expected annual loss89.1 out of 100
Community resilience13 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.

Earthquake94.4Very High at its worst in this ZIP code
River flooding90.8Very High at its worst in this ZIP code
Landslide46.2Relatively Low at its worst in this ZIP code
Wildfire45.7Relatively High at its worst in this ZIP code
Heat wave37.5Relatively Low at its worst in this ZIP code
Hail26.7Relatively Low at its worst in this ZIP code
Tornado23.9Relatively Low at its worst in this ZIP code
Winter weather12.8Very Low at its worst in this ZIP code
Lightning10.5Very Low at its worst in this ZIP code
Strong wind8.8Relatively 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$77,699$96,334$78,538
Income per person$27,518$47,977$43,289
Poverty rate12.8%12%12.4%
Median home value$568,300$695,400$303,400
Median gross rent$1,776$1,956$1,348
Homeownership53.4%55.8%65%
Bachelor's degree or higher19.9%36.5%35%
Unemployment rate5.5%6.4%5.2%
Works from home8%15.5%13.5%
Born outside the US36.6%26.7%13.9%
Median age34.937.638.7
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 stationPOMONA/FAIRPLEX, CA US4.5 km away
Rain in a year14 in

Average high and low by month

January67.9°F / 43.1°F2.91 in rain
February67.3°F / 44.5°F4.15 in rain
March72°F / 47°F2.12 in rain
April75.8°F / 49.6°F0.97 in rain
May78.4°F / 54°F0.22 in rain
June84.3°F / 57.2°F0.06 in rain
July90.3°F / 62.3°F0 in rain
August92.4°F / 62.7°F0.03 in rain
September88.7°F / 60.4°F0.01 in rain
October80.5°F / 53.9°F0.97 in rain
November73.5°F / 47°F0.74 in rain
December66.9°F / 41.5°F2.29 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 supermarket26% of this ZIP code's area
Far from a supermarket49% of this ZIP code's area
No vehicle and far from a supermarket7% of this ZIP code's area
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%.

This ZIP code is served by 3 school districts, so the address decides which one, not the ZIP code.

Pomona Unified School District92.2% of this ZIP code's land area
Chaffey Joint Union High School District3.9% of this ZIP code's land area
Ontario-Montclair School District3.9% 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 vulnerability75more vulnerable than 75% of US census tracts
Socioeconomic status70more vulnerable than 70% of US census tracts
Household characteristics66more vulnerable than 66% of US census tracts
Racial and ethnic minority status92more vulnerable than 92% of US census tracts
Housing type and transport65more vulnerable than 65% of US census tracts
Walkability12.2 out of 20Above average
Nearby ZIP codes

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

91769 Pomona, CA1.6 km away
91768 Pomona, CA3.2 km away
91767 Pomona, CA4.8 km away
91765 Diamond Bar, CA6.3 km away
91763 Montclair, CA6.4 km away
91709 Chino Hills, CA7.3 km away
91710 Chino, CA7.4 km away
91711 Claremont, CA8.3 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.

Los Angeles County95.9% of this ZIP code's land area
San Bernardino County4.1% of this ZIP code's land area
Time zonePacific (UTC-08:00 standard)
Daylight saving timeObserved
Land area10.1 sq mi
Water area0.01 sq mi
Population density6,800 people per sq mi
Latitude, longitude34.0418, -117.7569

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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