Postal Codes

80503 ZIP Code

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ZIP code 80503 covers Longmont, Colorado, with a population of about 36,206 and a median household income of $118,465.

Population
36,206395 per square mile
Median age
43.95.2 points above the US average
Median household income
$118,4651.3× the Colorado median
Poverty rate
5.1%7.3 points below the US average
Typical home value
$739,082up 9.8% in five years
Median rent
$1,8431.1× the Colorado median
Degree or higher
60.2%25.2 points above the US average
Homeownership
68.5%3.5 points above the US average
Time zone
Mountain UTC-07:00observes daylight saving time
Businesses
769

Where 80503 is

Longmont, Colorado — 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

Population36,206
Median age43.9
Family households63.7%
Born outside the US8.8%
Speaks a language other than English at home9.3%
White (non-Hispanic)81.5%
Black (non-Hispanic)0.3%
Asian (non-Hispanic)4.9%
Hispanic or Latino9.5%
Veterans5.9%
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$118,465
Income per person$64,140
Poverty rate5.1%
Households on SNAP or cash assistance5.2%

Household income distribution

Under $10k2.5%
$10–15k0.8%
$15–20k1.2%
$20–25k2.9%
$25–30k1.6%
$30–35k1.4%
$35–40k2.2%
$40–45k3.2%
$45–50k3.5%
$50–60k3.6%
$60–75k8.0%
$75–100k10.9%
$100–125k10.4%
$125–150k8.7%
$150–200k13.6%
$200k or more25.4%

Income as declared to the IRS

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

Tax returns filed17,690
Mean adjusted gross income$147,340
Returns declaring $200,000 or more18.1%
Returns, under $25k21.9%
Returns, $25k–$50k17.2%
Returns, $50k–$75k12.5%
Returns, $75k–$100k9.1%
Returns, $100k–$200k21.2%
Returns, $200k or more18.1%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$704,800
Median gross rent$1,843
Rent as a share of household income33.4%
Owner-occupied68.5%
Vacant homes3.2%
Median year built1993

What the homes are

Detached house67.7%
Attached house6.5%
2 to 4 units2.7%
5 to 19 units14.9%
20 or more units7.5%
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$739,082as of 2026-07
Typical home value, 1 yeardown 0.7%
Typical home value, 5 yearsup 9.8%
Typical home value, 10 yearsup 58.7%
Typical asking rent$1,932as of 2026-07
Typical asking rent, 1 yearup 1.8%
Typical asking rent, 5 yearsup 17%
Typical home value since 2000
200020132026$800,115$269,755

$269,755 in 2000 to $739,082 in 2026.

Typical asking rent
202120232026$1,932$1,652

$1,652 in 2021 to $1,932 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate2.9%
Bachelor's degree or higher60.2%
High school diploma or higher96.9%
Works from home26.4%
Drives to work alone63.2%
Takes public transport0.7%
Commutes 45 minutes or more13.3%
Health

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

Obesity16.7% 16.7 pts below the national average of 33.4%
Diagnosed diabetes7.6% 4.4 pts below the national average of 12%
Currently smokes8.6% 4.6 pts below the national average of 13.2%
High blood pressure24% 10.1 pts below the national average of 34.1%
Fair or poor general health12.1% 8.2 pts below the national average of 20.3%
No health insurance (18–64)6.7% 4.6 pts below the national average of 11.3%
Depression22.3% same as the national average of 21.9%
No leisure-time physical activity11.7% 13.7 pts below the national average of 25.4%
Arthritis23.7% 1.4 pts below the national average of 25.1%
Binge drinking17.5% 1.5 pts above the national average of 16%
Taking blood pressure medication71.4% 3.3 pts below the national average of 74.7%
Cancer (non-skin)9.9% 2.2 pts above the national average of 7.7%
Current asthma10.2% same as the national average of 10.4%
Coronary heart disease5.2% 1 pts below the national average of 6.2%
Routine check-up in past year72% 4.7 pts below the national average of 76.7%
Cholesterol screening88.7% 2.8 pts above the national average of 85.9%
Cognitive disability11.1% 3.7 pts below the national average of 14.8%
Colorectal screening67.8% 3.5 pts above the national average of 64.3%
COPD4.9% 1.7 pts below the national average of 6.6%
Visited a dentist72.1% 10.8 pts above the national average of 61.3%
Any disability21.9% 8.8 pts below the national average of 30.7%
Hearing disability6.3% same as the national average of 6.7%
High cholesterol32.6% 3.6 pts below the national average of 36.2%
Independent living disability5.4% 3 pts below the national average of 8.4%
Mammography use74.7% 1.2 pts below the national average of 75.9%
Poor mental health (14+ days)13.8% 3 pts below the national average of 16.8%
Mobility disability8.9% 5.1 pts below the national average of 14%
Poor physical health (14+ days)10.7% 2.8 pts below the national average of 13.5%
Self-care disability2.5% 1.5 pts below the national average of 4%
Sleeps under 7 hours23.9% 12.5 pts below the national average of 36.4%
Stroke2.7% 0.7 pts below the national average of 3.4%
All natural teeth lost5.6% 7.4 pts below the national average of 13%
Vision disability3.3% 2.3 pts below the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments769
People employed7,858
Annual payroll$731,028,000
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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 66.7% of US census tracts
FEMA ratingRelatively Low to Relatively High across the 12 census tracts this ZIP code covers
Expected annual loss72.9 out of 100
Community resilience85.4 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.

Wildfire96.2Very High at its worst in this ZIP code
Hail91.7Relatively High at its worst in this ZIP code
Lightning87.9Very High at its worst in this ZIP code
Avalanche81.1Relatively Moderate at its worst in this ZIP code
Winter weather80.2Relatively High at its worst in this ZIP code
Drought78.3Relatively Low at its worst in this ZIP code
River flooding69.6Relatively High at its worst in this ZIP code
Tornado63.5Relatively High at its worst in this ZIP code
Landslide61.7Relatively Moderate at its worst in this ZIP code
Strong wind55.2Relatively Moderate at its worst in this ZIP code
Volcanic activity51.2Very Low at its worst in this ZIP code
Earthquake40.3Relatively Low at its worst in this ZIP code
Cold wave36.3Relatively Moderate at its worst in this ZIP code
Ice storm34.9Relatively Low at its worst in this ZIP code
Heat wave9.2Relatively Low at its worst in this ZIP code
Compared with Colorado 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 ZIPColoradoUnited States
Median household income$118,465$92,470$78,538
Income per person$64,140$50,489$43,289
Poverty rate5.1%9.4%12.4%
Median home value$704,800$502,200$303,400
Median gross rent$1,843$1,693$1,348
Homeownership68.5%66.3%65%
Bachelor's degree or higher60.2%44.7%35%
Unemployment rate2.9%4.5%5.2%
Works from home26.4%18.8%13.5%
Born outside the US8.8%9.6%13.9%
Median age43.937.538.7
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 stationLONGMONT 2 ESE, CO US7.4 km away
Rain in a year15 in

Average high and low by month

January44.5°F / 14.4°F0.56 in rain
February46.8°F / 17.1°F0.57 in rain
March56.8°F / 26.1°F1.17 in rain
April63.2°F / 32.3°F2.04 in rain
May72.7°F / 41.4°F1.97 in rain
June83.9°F / 50.5°F1.75 in rain
July90.8°F / 55.4°F1.69 in rain
August87.8°F / 53.7°F1.95 in rain
September80.3°F / 45.8°F1.26 in rain
October66.2°F / 32.9°F1.04 in rain
November53.5°F / 23.5°F0.75 in rain
December44.8°F / 14.5°F0.46 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 supermarket24% 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%.

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

St. Vrain Valley School District RE 1J95.2% of this ZIP code's land area
Thompson School District R-2J3.3% of this ZIP code's land area
Boulder Valley School District RE-21.5% 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 vulnerability15more vulnerable than 15% of US census tracts
Socioeconomic status16more vulnerable than 16% of US census tracts
Household characteristics15more vulnerable than 15% of US census tracts
Racial and ethnic minority status19more vulnerable than 19% of US census tracts
Housing type and transport31more vulnerable than 31% of US census tracts
Walkability7.7 out of 20Below average
Nearby ZIP codes

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

80502 Longmont, CO5.3 km away
80501 Longmont, CO5.8 km away
80544 Niwot, CO5.8 km away
80533 Hygiene, CO6.6 km away
80301 Boulder, CO12.6 km away
80516 Erie, CO13.3 km away
80540 Lyons, CO16.3 km away
80542 Mead, CO16.4 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.

Boulder County97.9% of this ZIP code's land area
Larimer County2.1% of this ZIP code's land area
Time zoneMountain (UTC-07:00 standard)
Daylight saving timeObserved
Land area91.75 sq mi
Water area3 sq mi
Population density395 people per sq mi
Latitude, longitude40.1559, -105.1624

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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