Postal Codes

81621 ZIP Code

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ZIP code 81621 covers Basalt, Colorado, with a population of about 6,349 and a median household income of $103,721.

Population
6,34925 per square mile
Median age
44.15.4 points above the US average
Median household income
$103,7211.1× the Colorado median
Poverty rate
6.1%6.3 points below the US average
Typical home value
$1,441,289up 49.3% in five years
Median rent
$2,2201.3× the Colorado median
Degree or higher
59%24 points above the US average
Homeownership
67.5%2.5 points above the US average
Time zone
Mountain UTC-07:00observes daylight saving time
Businesses
548

Where 81621 is

Basalt, 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

Population6,349
Median age44.1
Family households63.1%
Born outside the US10.2%
Speaks a language other than English at home21.3%
White (non-Hispanic)77.4%
Black (non-Hispanic)0.3%
Asian (non-Hispanic)0.7%
Hispanic or Latino17.9%
Veterans4.6%
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$103,721
Income per person$64,337
Poverty rate6.1%
Households on SNAP or cash assistance3.8%

Household income distribution

Under $10k2.3%
$10–15k1.8%
$15–20k2.1%
$20–25k1.4%
$25–30k0.7%
$30–35k2.6%
$35–40k1.4%
$40–45k2.1%
$45–50k1.8%
$50–60k2.7%
$60–75k11.5%
$75–100k15.6%
$100–125k15.4%
$125–150k5.0%
$150–200k12.8%
$200k or more20.8%

Income as declared to the IRS

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

Tax returns filed3,840
Mean adjusted gross income$147,368
Returns declaring $200,000 or more13.5%
Returns, under $25k20.3%
Returns, $25k–$50k20.8%
Returns, $50k–$75k17.2%
Returns, $75k–$100k10.4%
Returns, $100k–$200k17.7%
Returns, $200k or more13.5%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$1,138,500
Median gross rent$2,220
Rent as a share of household income21.3%
Owner-occupied67.5%
Vacant homes14%
Median year built1994

What the homes are

Detached house61.9%
Attached house8.5%
2 to 4 units6.4%
5 to 19 units9.3%
20 or more units8.1%
Mobile home5.8%
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$1,441,289as of 2026-07
Typical home value, 1 yearup 6.4%
Typical home value, 5 yearsup 49.3%
Typical home value, 10 yearsup 132.1%
Typical asking rent$4,825as of 2026-07
Typical home value since 2000
200020132026$1,441,289$293,997

$293,997 in 2000 to $1,441,289 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate2.5%
Bachelor's degree or higher59%
High school diploma or higher96.3%
Works from home8.5%
Drives to work alone71.3%
Takes public transport6.1%
Commutes 45 minutes or more15.2%
Health

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

Obesity22.8% 10.6 pts below the national average of 33.4%
Diagnosed diabetes7.9% 4.1 pts below the national average of 12%
Currently smokes9.5% 3.7 pts below the national average of 13.2%
High blood pressure25% 9.1 pts below the national average of 34.1%
Fair or poor general health13.3% 7 pts below the national average of 20.3%
No health insurance (18–64)9.4% 1.9 pts below the national average of 11.3%
Depression21.1% 0.8 pts below the national average of 21.9%
No leisure-time physical activity14.7% 10.7 pts below the national average of 25.4%
Arthritis22.9% 2.2 pts below the national average of 25.1%
Binge drinking19.5% 3.5 pts above the national average of 16%
Taking blood pressure medication70% 4.7 pts below the national average of 74.7%
Cancer (non-skin)8.4% 0.7 pts above the national average of 7.7%
Current asthma10.5% same as 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 year71.8% 4.9 pts below the national average of 76.7%
Cholesterol screening87.3% 1.4 pts above the national average of 85.9%
Cognitive disability12.1% 2.7 pts below the national average of 14.8%
Colorectal screening65.6% 1.3 pts above the national average of 64.3%
COPD4.8% 1.8 pts below the national average of 6.6%
Visited a dentist66.4% 5.1 pts above the national average of 61.3%
Any disability24% 6.7 pts below the national average of 30.7%
Hearing disability5.9% 0.8 pts below the national average of 6.7%
High cholesterol31.6% 4.6 pts below the national average of 36.2%
Independent living disability5.7% 2.7 pts below the national average of 8.4%
Mammography use74.2% 1.7 pts below the national average of 75.9%
Poor mental health (14+ days)14.5% 2.3 pts below the national average of 16.8%
Mobility disability9.1% 4.9 pts below the national average of 14%
Poor physical health (14+ days)11% 2.5 pts below the national average of 13.5%
Self-care disability2.6% 1.4 pts below the national average of 4%
Sleeps under 7 hours28.3% 8.1 pts below the national average of 36.4%
Stroke2.5% 0.9 pts below the national average of 3.4%
All natural teeth lost6.7% 6.3 pts below the national average of 13%
Vision disability3.5% 2.1 pts below the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments548
People employed2,974
Annual payroll$176,264,000
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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 99.1% of US census tracts
FEMA ratingVery High
Expected annual loss99.2 out of 100
Community resilience36.3 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.

Landslide99.3Relatively High at its worst in this ZIP code
Avalanche97.3Very High at its worst in this ZIP code
Lightning96.2Very High at its worst in this ZIP code
Wildfire94.9Relatively Moderate at its worst in this ZIP code
River flooding94.6Very High at its worst in this ZIP code
Drought80.4Relatively Low at its worst in this ZIP code
Winter weather80.2Relatively High at its worst in this ZIP code
Volcanic activity48.8Very Low at its worst in this ZIP code
Earthquake42.5Relatively Low at its worst in this ZIP code
Hail29.7Very Low at its worst in this ZIP code
Strong wind23.9Relatively Low at its worst in this ZIP code
Ice storm19.8Relatively Low at its worst in this ZIP code
Cold wave16Very Low at its worst in this ZIP code
Tornado10.2Very 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$103,721$92,470$78,538
Income per person$64,337$50,489$43,289
Poverty rate6.1%9.4%12.4%
Median home value$1,138,500$502,200$303,400
Median gross rent$2,220$1,693$1,348
Homeownership67.5%66.3%65%
Bachelor's degree or higher59%44.7%35%
Unemployment rate2.5%4.5%5.2%
Works from home8.5%18.8%13.5%
Born outside the US10.2%9.6%13.9%
Median age44.137.538.7
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 stationASPEN PITKIN CO AP, CO US18.3 km away
Rain in a year15 in

Average high and low by month

January34.6°F / 8.7°F1.05 in rain
February38°F / 12.4°F0.9 in rain
March46.3°F / 20.7°F1.03 in rain
April54.7°F / 28°F1.8 in rain
May65°F / 35.1°F1.52 in rain
June77.1°F / 42.1°F0.88 in rain
July82.2°F / 48.3°F1.64 in rain
August79.5°F / 47.2°F1.48 in rain
September72.3°F / 39.9°F1.43 in rain
October59.7°F / 29°F1.33 in rain
November45.2°F / 18.7°F1.04 in rain
December34.3°F / 9.2°F0.82 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 supermarketNone of this ZIP code
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 2 school districts, so the address decides which one, not the ZIP code.

Roaring Fork School District RE-193.9% of this ZIP code's land area
Eagle County School District RE 506.1% 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 status24more vulnerable than 24% of US census tracts
Household characteristics15more vulnerable than 15% of US census tracts
Racial and ethnic minority status32more vulnerable than 32% of US census tracts
Housing type and transport37more vulnerable than 37% of US census tracts
Walkability8.5 out of 20Below average
Nearby ZIP codes

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

81656 Woody Creek, CO11.7 km away
81654 Snowmass, CO14.5 km away
81615 Snowmass Village, CO15.8 km away
81612 Aspen, CO17.6 km away
81623 Carbondale, CO21 km away
81611 Aspen, CO23.2 km away
81642 Meredith, CO29.4 km away
81601 Glenwood Springs, CO34.2 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.

Eagle County64.9% of this ZIP code's land area
Pitkin County35.1% of this ZIP code's land area
Time zoneMountain (UTC-07:00 standard)
Daylight saving timeObserved
Land area258.7 sq mi
Water area2.1 sq mi
Population density25 people per sq mi
Latitude, longitude39.3535, -106.9988

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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