Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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zipcodes.pro — CITY/CO/BASALT

Basalt ZIP code, Colorado

The ZIP code for Basalt, CO is 81621, and its area code is 970.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
4,335
Area code
970

Mail addressed to Basalt uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

Basalt in numbers

About 4,335 people live in Basalt, in 1,963 households. The median household income is $105,855 a year, 11% above the Colorado median of $95,470 (US: $80,734). The median owner-occupied home is valued at $1,180,300 (2.2 times the Colorado median), and median gross rent is $2,257 a month. The median age is 41.2; 57.2% of adults 25 and over hold a bachelor's degree or higher (45.7% across Colorado); the average commute takes 27 minutes.

Population4,335Basalt4,335
Households1,963Basalt1,963
Median age41.2Basalt41.2Colorado37.7US 38.9
Median household income$105,855Basalt$105,855Colorado$95,470US $80,734
Median home value$1,180,300Basalt$1,180,300Colorado$539,400US $332,700
Median gross rent$2,257Basalt$2,257Colorado$1,761US $1,413
Bachelor's degree or higher57.2%Basalt57.2%Colorado45.7%US 35.7%
Mean commute26.7 minBasalt26.7 minColorado25.2 minUS 26.4 min
Population density2,143 / sq miBasalt2,143 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Basalt town. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Basalt

ZIP codes with the USPS city name Basalt
ZIP City Type Population Median income Median home
81621 Basalt , CO Standard 6,550 $104,754 $1,136,600

Other ZIP codes overlapping Basalt

These ZIP codes cover part of Basalt but are addressed as somewhere else.

ZIP codes overlapping Basalt
ZIP City Type Population Median income Median home
81623 Carbondale , CO Standard 15,067 $109,661 $913,300

Map of Basalt ZIP codes

81621

The ZIP codes of Basalt, CO, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Basalt

The nearest larger towns are Carbondale (6,637 people, 9.1 mi), Aspen (6,756 people, 16 mi) and Gypsum (8,941 people, 18 mi).

Towns near Basalt
TownPopulationDistance
El Jebel 2,941 3.6 mi
Carbondale 6,637 9.1 mi
Snowmass Village 2,972 11.9 mi
Aspen 6,756 16.5 mi
Gypsum 8,941 18.1 mi
Glenwood Springs 10,241 19.9 mi
Eagle 7,442 22.5 mi
Edwards 10,785 28.4 mi
New Castle 4,880 29.3 mi

More nearby: every ZIP code in Eagle County · Colorado ZIP codes

Cite this page

zipcodes.pro. “Basalt, CO ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/co/basalt

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