81621 ZIP Code Profile, Map, Data & Demographics

ZIP Code Type: STANDARD
County: Eagle County
Centroid: Latitude 39.376, Longitude -106.993
Time Zone: Mountain Time Zone (UTC -7 hours)
Observes DST: Yes

ZIP Code 81621 has segments in 2 Counties (Eagle, Pitkin).

Businesses Addresses: 718
PO Box Addresses: 1,242
Residential Addresses: 2,501

Multi-Family Addresses: 0
Single Family Addresses: 2,501

The ZIP Code maps and database are updated 4 times per year.
Database updated: June 1, 2025, Maps updated: May 1, 2024.

Basalt, CO 81621 Data & Demographics (As of July 1, 2025)

POPULATION
Total Population	6,768 (100%)
Population in Households	6,768 (100.0%)
Population in Families	4,758 (70.3%)
Population in Group Quarters¹	0
Population Density	17
Diversity Index²	70


INCOME
Median Household Income	$112,604
Average Household Income	$159,405
% of Income for Mortgage⁴	67%
Per Capita Income	$66,301
Wealth Index⁵	148
Socioeconomic Status Index⁶	Moderate (56.0)

HOUSING
Total HU (Housing Units)	3,423 (100%)
Owner Occupied HU	1,761 (51.4%)
Renter Occupied HU	1,054 (30.8%)
Vacant Housing Units	608 (17.8%)
Median Home Value	$1,198,736
Average Home Value	$1,284,723
Housing Affordability Index³	38

HOUSEHOLDS
Total Households	2,815
Average Household Size	2.40
Family Households	1,682
Average Family Size	3.00

NOTES

Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

Basalt, CO 81621 - Peer Comparisons by Rank and Percentile

The table below compares 81621 to the other 524 ZIP Codes in Colorado by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

GROWTH RATE / YEAR	2020-2025	2025-2030
Population	0.21%	-0.01%
Households	0.19%	0.08%
Families		0.42%
Median Household Income		2.22%
Per Capita Income		3.13%
Owner Occupied HU		-0.07%

Variable Description	Rank	Percentile
Total Population	# 205	61st
Population Density	# 301	43rd
Median Household Income	# 105	80th
Housing Affordability Index	# 71	14th
Per Capita Income	# 71	87th
Diversity Index	# 123	77th

81621 ZIP Code Profile, Map, Data & Demographics

ZIP Code 81621: Basic Data & USPS Preferred City Name

Basalt, CO 81621 Data & Demographics (As of July 1, 2025)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Basalt, CO 81621 - Peer Comparisons by Rank and Percentile

Popular Places Near ZIP Code 81621

Use HTL Address Research for a Colorado Address and get...

Quick & Easy Ways to...

Colorado Census Data Comparison Tool

More Tools and Resources:

Eagle County