81621 ZIP Code — Basalt, CO

Eagle County, Colorado

ZIP code 81621 is located in Basalt, Colorado, within Eagle County. It covers approximately 258.70 square miles and serves a population of 5,869 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 970.

About ZIP code 81621

The housing stock consists of a mix of housing types. Most homes were built in the 1990s, giving the area an established character. Median home value is $1,106,700. Owner-occupancy sits near the national average at 70%.

The gap between median ($101,786) and mean household income suggests income inequality — a small number of higher earners pull the average up.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 28 minutes is near the national average.

Educational attainment is high — 56% of residents hold a bachelor's degree or higher, well above the national average of 33%.

5,869

population

258.70

sq mi land

Standard

ZIP type

Mountain (MT)

timezone

81621 ZIP code map

Cities in ZIP code 81621

Below are the cities the US Postal Service accepts for ZIP code 81621. Using any city not on this list may result in mail delivery delays.

City	Status
Basalt	Acceptable
Basalt	Preferred

Nearby ZIP codes

81642 Meredith (13 mi) 81654 Snowmass (13.7 mi) 81611 Aspen (14.3 mi)

Demographics updated 05/2026

Population
Total population	5,869
Population density	23 / sq mi
State FIPS	08
County FIPS	037

Geography
Land area	258.70 sq mi
Water area	2.10 sq mi
Latitude	39.3432
Longitude	-106.8207
Timezone	Mountain (MT)
Area code	970

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	19.3%	28.6%	32.5%
$50k – $100k	26.9%	29.6%	31.0%
$100k – $200k	33.6%	28.2%	26.9%
Over $200k	20.2%	13.7%	9.6%

Demographics & statistics

5,869

Population

People per sq mi

47.3

Median age

$101,786

Median household income

$58,433

Per capita income

$1,106,700

Median home value

$2,150

Median monthly rent

69.5%

Home ownership

8.5%

Poverty rate

2.5%

Unemployment

2,324

Housing units

56.2%

Bachelor's or higher

Age distribution

Male Female

114

Under 5

103

243

5–9

222

139

10–14

126

15–19

20–24

361

25–34

329

458

35–44

417

496

45–54

452

278

55–59

254

192

60–64

175

440

65–74

401

192

75–84

174

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,052	17.9%
18 and over	4,817	82.1%
65 and over	1,258	21.4%
Median age	47.3 years

Race & ethnicity

White 79.1%

Two or more races 10.5%

Hispanic or Latino 9.7%

Asian 0.3%

Black or African American 0.2%

Other race 0.2%

Group	Count	%
White	5,142	79.1%
Two or more races	686	10.5%
Hispanic or Latino	634	9.7%
Asian	21	0.3%
Black or African American	10	0.2%
Other race	10	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	19.3%	28.6%	32.5%
$50k – $100k	26.9%	29.6%	31.0%
$100k – $200k	33.6%	28.2%	26.9%
Over $200k	20.2%	13.7%	9.6%

Under $10k 1.5%

$10k–$15k 3.3%

$15k–$25k 5.1%

$25k–$35k 2.8%

$35k–$50k 6.3%

$50k–$75k 13.8%

$75k–$100k 17.2%

$100k–$150k 20.0%

$150k–$200k 12.0%

$200k+ 18.2%

Range	% of households
Under $10k	1.5%
$10k–$15k	3.3%
$15k–$25k	5.1%
$25k–$35k	2.8%
$35k–$50k	6.3%
$50k–$75k	13.8%
$75k–$100k	17.2%
$100k–$150k	20.0%
$150k–$200k	12.0%
$200k+	18.2%
Median income	$101,786

Housing

Home values

Under $50k 1.0%

$50k–$100k 4.8%

$100k–$150k 0.4%

$200k–$300k 4.6%

$300k–$500k 1.9%

$500k–$1M 25.5%

$1M+ 61.9%

Housing overview

Metric	Value
Median home value	$1,106,700
Median rent / month	$2,150
Owner occupied	69.5%
Renter occupied	30.5%
Vacant	21.6%
Single-family detached	62.5%
Large apartment buildings	7.5%
Mobile homes	3.6%
Median rooms	6.0
Avg household size (owned)	2.49

Year built

Era	%
2020 or later	0.0%
2010–2019	8.6%
2000–2009	19.1%
1990–1999	35.6%
1980–1989	14.0%
1970–1979	8.4%
1960–1969	5.1%
1950–1959	1.8%
1940–1949	2.5%
1939 or earlier	4.9%

Bedrooms

Size	% of units
No bedroom (studio)	1.5%
1 bedroom	8.8%
2 bedrooms	21.7%
3 bedrooms	36.1%
4 bedrooms	30.2%
5+ bedrooms	1.6%

Vehicles per household

Vehicles	% of households
No vehicle	1.3%
1 vehicle	24.4%
2 vehicles	46.5%
3 or more	27.8%

Heating fuel

Fuel type	%
Utility gas	60.9%
Electricity	23.8%
Propane / LP gas	10.6%
Wood	3.5%
Solar	1.2%

Households & families

Household type	Count	%
Married-couple family	1,529	63.8%
Cohabiting couple	117	4.9%
Male householder, no spouse	492	20.5%
Female householder, no spouse	258	10.8%
Households with children under 18	656	27.4%
Households with seniors (65+)	912	38.1%
Average household size	2.45

Marital status

Status	Male	Female
Never married	24.8%	13.5%
Married	56.8%	67.6%
Separated	0.9%	0.0%
Widowed	0.9%	4.3%
Divorced	16.7%	14.6%

Education

Less than 9th grade 0.2%

Some HS, no diploma 1.5%

HS graduate 13.2%

Some college, no degree 21.5%

Associate's degree 7.3%

Bachelor's degree 39.2%

Graduate / professional 17.0%

Metric	%
HS diploma or higher	98.3%
Bachelor's or higher	56.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	74	7.4%
Kindergarten	34	3.4%
Elementary school	523	52.0%
High school	131	13.0%
College / grad school	243	24.2%

Employment

Industry of employment

Education & healthcare 23.9%

Retail trade 14.3%

Arts, food & hospitality 13.3%

Professional & management 11.1%

Finance & real estate 8.9%

Construction 8.1%

Transportation & utilities 5.2%

Public administration 4.8%

Other services 4.5%

Agriculture & mining 2.8%

Wholesale trade 2.0%

Information 0.6%

Manufacturing 0.5%

Occupation

Category	%
Management, business & arts	47.9%
Service	17.0%
Sales & office	29.3%
Natural resources & construction	4.5%
Production & transportation	1.3%

Employment type

Type	%
Private sector	79.6%
Government	11.3%
Self-employed	9.0%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	70.0%
Carpool	7.9%
Public transit	5.7%
Walk	4.1%
Work from home	9.0%
Other means	3.2%
Avg commute (minutes)	28.4

Poverty

All people 8.5%

Under 18 years 0.0%

18 and over 10.3%

Married-couple families 2.7%

Female-led households 0.0%

Income support

Source	% of households
Social Security	27.3%
Retirement income	14.9%
Supplemental Security	0.3%
Cash public assistance	1.3%
Food stamps / SNAP	3.0%

Health indicators

Condition	%
Obesity	22.7%
High blood pressure	22.7%
High cholesterol	27.2%
Diabetes	6.7%
Heart disease	4.1%
Stroke	2.0%
Asthma	9.6%
Arthritis	18.2%
Kidney disease	2.1%
Pulmonary disease	4.7%
Cancer	5.1%

Behavior / access	%
Smoking	13.6%
Binge drinking	20.4%
No physical activity	15.6%
Less than 7 hrs sleep	27.3%
Depression	19.2%
Fair or poor health	9.8%
Poor mental health	13.4%
Poor physical health	8.2%
No health insurance	13.8%
Visited doctor (checkup)	64.0%
Visited dentist	66.0%
Cholesterol screening	90.0%
Teeth loss	9.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	200	4.2%

Disability	%
Any disability	5.7%
Under 18	3.1%
18–64 years	1.8%
65 and over	18.7%

Health insurance coverage

Type	%
Private insurance	77.3%
Public insurance	25.8%
No insurance	3.4%
Uninsured under 19	3.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	5,652	96.3%
Spanish	287	5.1%
Other Indo-European	234	4.1%
Asian & Pacific Islander	53	0.9%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	5,329	90.8%
Born in same state	5,109	87.1%
Born in different state	1,489	25.4%
Foreign born	220	3.7%
Naturalized citizen	540	9.2%
Not a US citizen	226	41.9%

Ancestry

Ancestry	Count	%
French	768	13.1%
Italian	421	7.2%
Arab	351	6%
Polish	175	3%

Ancestry	Count	%
English	51	0.9%
German	22	0.4%
Norwegian	14	0.2%
Dutch	13	0.2%

Technology access

Metric	% of households
Computer access	40.8%
Internet access	97.7%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 81621

What city is ZIP code 81621 in?

ZIP code 81621 is primarily assigned to Basalt, Colorado.

What county is ZIP code 81621 in?

ZIP code 81621 falls within Eagle County, Colorado.

How educated is the population of ZIP code 81621?

56% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What is the typical home value in ZIP code 81621?

The median home value in ZIP code 81621 is $1,106,700.

What is the population of ZIP code 81621?

ZIP code 81621 has an estimated population of 5,869 residents, with a density of 23 people per square mile.

What is the median household income in ZIP code 81621?

The median household income in ZIP code 81621 is $101,786, above the national median of ~$75,000.

What timezone is ZIP code 81621 in?

ZIP code 81621 observes the MST timezone.