81638 ZIP Code — Hamilton, CO

Moffat County, Colorado

ZIP code 81638 is located in Hamilton, Colorado, within Moffat County. It covers approximately 418.12 square miles and serves a population of 65 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 970.

population

418.12

sq mi land

Standard

ZIP type

Mountain (MT)

timezone

81638 ZIP code map

Cities in ZIP code 81638

Below are the cities the US Postal Service accepts for ZIP code 81638. Using any city not on this list may result in mail delivery delays.

City	Status
Hamilton	Acceptable
Hamilton	Preferred

Nearby ZIP codes

81625 Craig (19.8 mi)

Demographics updated 06/2026

Population
Total population	65
Population density	0 / sq mi
State FIPS	08
County FIPS	081

Geography
Land area	418.12 sq mi
Water area	0.12 sq mi
Latitude	40.3376
Longitude	-107.6254
Timezone	Mountain (MT)
Area code	970

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	68.8%	47.0%	32.5%
$50k – $100k	0.0%	28.8%	31.0%
$100k – $200k	31.3%	20.3%	26.9%
Over $200k	0.0%	3.9%	9.6%

Demographics & statistics

Population

45.5

Median age

Median household income

$44,235

Per capita income

$895,800

Median home value

Median monthly rent

80.0%

Home ownership

7.7%

Poverty rate

0.0%

Unemployment

Housing units

45.1%

Bachelor's or higher

Age distribution

Male Female

Under 5

35–44

45–54

55–59

65–74

75–84

← Male

Female →

Age summary

Group	Count	%
Under 18	14	21.5%
18 and over	51	78.5%
65 and over	19	29.2%
Median age	45.5 years

Race & ethnicity

White 100%

Group	Count	%
White	65	100%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	68.8%	47.0%	32.5%
$50k – $100k	0.0%	28.8%	31.0%
$100k – $200k	31.3%	20.3%	26.9%
Over $200k	0.0%	3.9%	9.6%

$15k–$25k 6.7%

$35k–$50k 36.7%

$75k–$100k 16.7%

$100k–$150k 40.0%

Range	% of households
$15k–$25k	6.7%
$35k–$50k	36.7%
$75k–$100k	16.7%
$100k–$150k	40.0%
Median income	$0

Housing

Home values

$100k–$150k 20.8%

$500k–$1M 50.0%

$1M+ 29.2%

Housing overview

Metric	Value
Median home value	$895,800
Median rent / month	$0
Owner occupied	80.0%
Renter occupied	20.0%
Vacant	53.1%
Single-family detached	100.0%
Large apartment buildings	0.0%
Mobile homes	0.0%
Median rooms	5.8
Avg household size (owned)	2.46

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	12.5%
1990–1999	7.8%
1980–1989	20.3%
1970–1979	20.3%
1960–1969	0.0%
1950–1959	18.8%
1940–1949	7.8%
1939 or earlier	12.5%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	0.0%
3 bedrooms	71.9%
4 bedrooms	15.6%
5+ bedrooms	12.5%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	0.0%
2 vehicles	60.0%
3 or more	40.0%

Heating fuel

Fuel type	%
Propane / LP gas	60.0%
Wood	40.0%

Households & families

Household type	Count	%
Married-couple family	19	63.3%
Cohabiting couple	0	0.0%
Male householder, no spouse	5	16.7%
Female householder, no spouse	6	20.0%
Households with children under 18	12	40.0%
Households with seniors (65+)	12	40.0%
Average household size	2.17

Marital status

Status	Male	Female
Never married	19.2%	0.0%
Married	80.8%	76.0%
Separated	0.0%	0.0%
Widowed	0.0%	0.0%
Divorced	0.0%	24.0%

Education

Less than 9th grade 0.0%

Some HS, no diploma 5.9%

HS graduate 3.9%

Some college, no degree 45.1%

Associate's degree 0.0%

Bachelor's degree 21.6%

Graduate / professional 23.5%

Metric	%
HS diploma or higher	94.1%
Bachelor's or higher	45.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	14	100.0%
Kindergarten	0	0.0%
Elementary school	0	0.0%
High school	0	0.0%
College / grad school	0	0.0%

Employment

Industry of employment

Agriculture & mining 73.9%

Education & healthcare 26.1%

Occupation

Category	%
Management, business & arts	87.0%
Service	0.0%
Sales & office	13.0%
Natural resources & construction	0.0%
Production & transportation	0.0%

Employment type

Type	%
Private sector	13.0%
Government	26.1%
Self-employed	60.9%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	0.0%
Carpool	0.0%
Public transit	0.0%
Walk	56.5%
Work from home	43.5%
Other means	0.0%
Avg commute (minutes)	0.0

Poverty

All people 7.7%

Under 18 years 0.0%

18 and over 9.8%

Married-couple families 10.5%

Female-led households 0.0%

Income support

Source	% of households
Social Security	23.3%
Retirement income	33.3%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
Obesity	29.5%
High blood pressure	37.3%
High cholesterol	36.7%
Diabetes	12.6%
Heart disease	9.0%
Stroke	4.4%
Asthma	11.0%
Arthritis	32.0%
Kidney disease	3.9%
Pulmonary disease	10.8%
Cancer	8.1%

Behavior / access	%
Smoking	21.6%
Binge drinking	15.1%
No physical activity	25.1%
Less than 7 hrs sleep	30.5%
Depression	21.2%
Fair or poor health	18.3%
Poor mental health	14.8%
Poor physical health	14.5%
No health insurance	14.5%
Visited doctor (checkup)	71.0%
Visited dentist	56.0%
Cholesterol screening	91.1%
Teeth loss	18.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	0	0.0%

Disability	%
Any disability	21.5%
Under 18	100.0%
18–64 years	0.0%
65 and over	0.0%

Health insurance coverage

Type	%
Private insurance	76.9%
Public insurance	29.2%
No insurance	9.2%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	51	78.5%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	65	100.0%
Born in same state	65	100.0%
Born in different state	29	44.6%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
French	16	24.6%

Ancestry	Count	%
Italian	8	12.3%

Technology access

Metric	% of households
Computer access	46.2%
Internet access	100.0%

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

Frequently asked questions about ZIP code 81638

What city is ZIP code 81638 in?

ZIP code 81638 is primarily assigned to Hamilton, Colorado.

What county is ZIP code 81638 in?

ZIP code 81638 falls within Moffat County, Colorado.

Does ZIP code 81638 have an older population?

29% of residents in ZIP code 81638 are 65 or older, above the national average of ~17%.

How educated is the population of ZIP code 81638?

45% 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 81638?

The median home value in ZIP code 81638 is $895,800.

What is the population of ZIP code 81638?

ZIP code 81638 has an estimated population of 65 residents.

What timezone is ZIP code 81638 in?

ZIP code 81638 observes the MST timezone.