Postal Codes

80104 ZIP Code

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ZIP code 80104 covers Castle Rock, Colorado, with a population of about 36,461 and a median household income of $131,359.

Population
36,461516 per square mile
Median age
371.7 points below the US average
Median household income
$131,3591.4× the Colorado median
Poverty rate
4.2%8.2 points below the US average
Typical home value
$610,075up 9.4% in five years
Median rent
$1,8161.1× the Colorado median
Degree or higher
54.2%19.2 points above the US average
Homeownership
80.2%15.2 points above the US average
Time zone
Mountain UTC-07:00observes daylight saving time
Businesses
1,118

Where 80104 is

Castle Rock, 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

Population36,461
Median age37
Family households75%
Born outside the US4.7%
Speaks a language other than English at home6.3%
White (non-Hispanic)80.6%
Black (non-Hispanic)0.5%
Asian (non-Hispanic)1.6%
Hispanic or Latino9.5%
Veterans8.9%
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$131,359
Income per person$56,713
Poverty rate4.2%
Households on SNAP or cash assistance4.1%

Household income distribution

Under $10k2.8%
$10–15k0.8%
$15–20k1.0%
$20–25k1.6%
$25–30k0.9%
$30–35k1.9%
$35–40k3.6%
$40–45k1.0%
$45–50k2.0%
$50–60k3.1%
$60–75k6.3%
$75–100k11.8%
$100–125k11.4%
$125–150k9.8%
$150–200k17.5%
$200k or more24.6%

Income as declared to the IRS

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

Tax returns filed19,430
Mean adjusted gross income$119,973
Returns declaring $200,000 or more13.6%
Returns, under $25k18.9%
Returns, $25k–$50k15.7%
Returns, $50k–$75k12.9%
Returns, $75k–$100k10.9%
Returns, $100k–$200k27.9%
Returns, $200k or more13.6%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$586,800
Median gross rent$1,816
Rent as a share of household income34.6%
Owner-occupied80.2%
Vacant homes3.3%
Median year built2002

What the homes are

Detached house74.5%
Attached house7%
2 to 4 units1.6%
5 to 19 units9%
20 or more units7.4%
Mobile home0.3%
Boat, RV or van0.2%
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$610,075as of 2026-07
Typical home value, 1 yeardown 1.2%
Typical home value, 5 yearsup 9.4%
Typical home value, 10 yearsup 61.9%
Typical asking rent$2,411as of 2026-07
Typical asking rent, 1 yearup 1%
Typical asking rent, 5 yearsup 15%
Typical home value since 2000
200020132026$654,161$206,949

$206,949 in 2000 to $610,075 in 2026.

Typical asking rent
201720212026$2,411$1,699

$1,699 in 2017 to $2,411 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate4.1%
Bachelor's degree or higher54.2%
High school diploma or higher97.1%
Works from home24.7%
Drives to work alone65.1%
Takes public transport0.1%
Commutes 45 minutes or more25.2%
Health

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

Obesity26.6% 6.8 pts below the national average of 33.4%
Diagnosed diabetes6.9% 5.1 pts below the national average of 12%
Currently smokes8.9% 4.3 pts below the national average of 13.2%
High blood pressure25.8% 8.3 pts below the national average of 34.1%
Fair or poor general health12% 8.3 pts below the national average of 20.3%
No health insurance (18–64)7% 4.3 pts below the national average of 11.3%
Depression22.6% 0.7 pts above the national average of 21.9%
No leisure-time physical activity14.4% 11 pts below the national average of 25.4%
Arthritis22.7% 2.4 pts below the national average of 25.1%
Binge drinking19.1% 3.1 pts above the national average of 16%
Taking blood pressure medication69.3% 5.4 pts below the national average of 74.7%
Cancer (non-skin)8.3% 0.6 pts above the national average of 7.7%
Current asthma11.1% 0.7 pts above the national average of 10.4%
Coronary heart disease4.3% 1.9 pts below the national average of 6.2%
Routine check-up in past year73.8% 2.9 pts below the national average of 76.7%
Cholesterol screening87.5% 1.6 pts above the national average of 85.9%
Cognitive disability11.8% 3 pts below the national average of 14.8%
Colorectal screening66% 1.7 pts above the national average of 64.3%
COPD4.4% 2.2 pts below the national average of 6.6%
Visited a dentist73.2% 11.9 pts above the national average of 61.3%
Any disability22.5% 8.2 pts below the national average of 30.7%
Hearing disability5.5% 1.2 pts below the national average of 6.7%
High cholesterol31% 5.2 pts below the national average of 36.2%
Independent living disability5.5% 2.9 pts below the national average of 8.4%
Mammography use74.6% 1.3 pts below the national average of 75.9%
Poor mental health (14+ days)15.5% 1.3 pts below the national average of 16.8%
Mobility disability8.2% 5.8 pts below the national average of 14%
Poor physical health (14+ days)10.3% 3.2 pts below the national average of 13.5%
Self-care disability2.3% 1.7 pts below the national average of 4%
Sleeps under 7 hours28% 8.4 pts below the national average of 36.4%
Stroke2.3% 1.1 pts below the national average of 3.4%
All natural teeth lost6.3% 6.7 pts below the national average of 13%
Vision disability3% 2.6 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments1,118
People employed8,903
Annual payroll$434,764,000
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 67.7% of US census tracts
FEMA ratingRelatively Low to Relatively High across the 6 census tracts this ZIP code covers
Expected annual loss80 out of 100
Community resilience64.7 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.

Wildfire98.4Very High at its worst in this ZIP code
Lightning97.7Very High at its worst in this ZIP code
Hail93.6Relatively High at its worst in this ZIP code
Winter weather91Relatively High at its worst in this ZIP code
Landslide79.9Relatively Low at its worst in this ZIP code
Strong wind74Relatively Moderate at its worst in this ZIP code
Tornado68.1Relatively Moderate at its worst in this ZIP code
Volcanic activity61.9Very Low at its worst in this ZIP code
Drought61.4Relatively Low at its worst in this ZIP code
River flooding40.4Relatively Moderate at its worst in this ZIP code
Cold wave39.5Relatively Low at its worst in this ZIP code
Earthquake23.4Very Low at its worst in this ZIP code
Ice storm14Very Low at its worst in this ZIP code
Heat wave4.6Very 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$131,359$92,470$78,538
Income per person$56,713$50,489$43,289
Poverty rate4.2%9.4%12.4%
Median home value$586,800$502,200$303,400
Median gross rent$1,816$1,693$1,348
Homeownership80.2%66.3%65%
Bachelor's degree or higher54.2%44.7%35%
Unemployment rate4.1%4.5%5.2%
Works from home24.7%18.8%13.5%
Born outside the US4.7%9.6%13.9%
Median age3737.538.7
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 stationCASTLE ROCK, CO US6 km away
Rain in a year18 in
Snow in a year58 in

Average high and low by month

January45.6°F / 18°F0.55 in rain, 8 in snow
February46.7°F / 19.9°F0.7 in rain, 10.7 in snow
March53.8°F / 26.5°F1.54 in rain, 10.7 in snow
April59.1°F / 32.5°F2.08 in rain, 8.3 in snow
May68.4°F / 41.6°F1.97 in rain, 1.1 in snow
June80.2°F / 50.5°F2.2 in rain
July85.7°F / 56.4°F2.32 in rain
August83.6°F / 54.7°F2.52 in rain
September76.7°F / 46.6°F1.39 in rain, 0.4 in snow
October64.8°F / 34.6°F0.85 in rain, 2.7 in snow
November53.9°F / 25.7°F0.79 in rain, 6.7 in snow
December45.7°F / 18°F0.69 in rain, 8.9 in snow
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 supermarket19% 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%.

Douglas County School District RE-1100% 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 vulnerability6more vulnerable than 6% of US census tracts
Socioeconomic status8more vulnerable than 8% of US census tracts
Household characteristics9more vulnerable than 9% of US census tracts
Racial and ethnic minority status26more vulnerable than 26% of US census tracts
Housing type and transport12more vulnerable than 12% of US census tracts
Walkability5.2 out of 20Least walkable
Nearby ZIP codes

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

80109 Castle Rock, CO4 km away
80108 Castle Rock, CO8.2 km away
80116 Franktown, CO11.2 km away
80163 Littleton, CO12.2 km away
80134 Parker, CO13.1 km away
80131 Louviers, CO17.4 km away
80118 Larkspur, CO19 km away
80138 Parker, CO19.2 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.

Douglas County100% of this ZIP code's land area
Time zoneMountain (UTC-07:00 standard)
Daylight saving timeObserved
Land area70.67 sq mi
Population density516 people per sq mi
Latitude, longitude39.3722, -104.8561

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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