Washington County, Colorado

County in CO, US

By Neilsberg Research

Last updated May 1, 2026

Key Indicators

A quick look at key numbers

Population

4,831

Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates

Median Age

41.3

years ∙ half population younger than 41.3, half older

Diversity Index

29.1%

chance two random people differ in race and ethnicity

Nativity

foreign-born population

96%Native

4% Foreign-born

Geographic Context

Location, size, and surroundings

About

Washington County is a county in Colorado, United States.

Location

County in CO, US

Co-ordinates

DEC39.965790° N, 103.209744° W

DMS39° 57′ 56.84″ N, 103° 12′ 35.08″ W

Population Density & area

1.92/sq mi (0.741/km²)

Total Area

2,524 sq mi (6,537 km²)

Land Area

2,518 sq mi (6,522 km²) · 99.77%

Water Area

6 sq mi (15 km²) · 0.23%

Demographics & Living

Who lives here, how households are formed, and community composition

Population Composition

Key characteristics of the population

Sex Distribution

52% male

Male 52%

Female 48%

males per 100 females

Washington County 108.3

Colorado 102.6

United States 98

Nativity

foreign-born population

96%Native

4% Foreign-born

% Foreign-born

Washington County 4%

Colorado 9.8%

United States 14.1%

Age Distribution

How the population is spread across age groups

Median Age

41.3

years ∙ half population younger than 41.3, half older

Washington County

41.3

Colorado

37.7

United States

38.9

Dependency ratio

80.7

dependents per 100 working-age adults

Washington County 80.7

Colorado 57.7

United States 64.4

AGE DISTRIBUTION

Distribution of age group

Median age

	Washington County	Colorado	United States
Age Group
Children (Under 18)	22.2%	21%	22%
Working age (18-64)	55.3%	63.4%	60.8%
Senior (65+)	22.5%	15.6%	17.2%
Dependency ratio
Total dependency ratio	80.7	57.7	64.4
Child dependency ratio	40.1	33.1	36.1
Old-age dependency ratio	40.6	24.6	28.3

Racial & Ethnic Composition

Racial and ethnic makeup and how it compares

Race & Ethnicity

White

83.3%

Black

1.1%

Asian

0.6%

Hispanic

11.8%

Other

3.2%

Note: White, Black, and Asian refer to individuals belonging to a single race and not of Hispanic origin. Hispanics may be of any race.

Diversity Index

29.1%

chance two random people differ in race and ethnicity

Washington County 29.1%

Colorado 52.5%

United States 61.4%

Note: The Diversity Index (DI), based on the Blau Index, measures the probability that two randomly selected individuals differ in race and ethnicity. Values range from 0 (no diversity) to 1 (high diversity) and are shown as percentages.

RACIAL & ETHNIC COMPOSITION

Race & Ethnicity

Percentage of Washington County population

Racial and ethnic composition — Washington County vs Colorado vs United States. Source: ACS 2020-2024 5-Year Estimates.
	Washington County	Colorado	United States
Hispanic or Latino	11.8%	22.5%	19.3%
Mexican	9.7%	15.8%	11.3%
Puerto Rican	0.3%	0.7%	1.8%
Cuban	0.1%	0.3%	0.8%
Other Hispanic / Latino	1.7%	5.7%	5.5%
Not Hispanic or Latino	88.2%	77.5%	80.7%
One race	85.6%	72.9%	76.4%
White	83.3%	64.8%	57.4%
Black or African American	1.1%	3.8%	11.9%
American Indian and Alaska Native	0%	0.4%	0.5%
Asian	0.6%	3.2%	5.9%
Native Hawaiian and Other Pacific Islander	0%	0.1%	0.2%
Some Other Race	0.7%	0.5%	0.6%
Two or more races (Multiracial)	2.6%	4.6%	4.3%

Household & Families Composition

Household size, type, and family structure

Household structure

63.4% family

Family 63.4%

Non family 36.6%

% family households

Washington County 63.4%

Colorado 61.7%

United States 64.2%

Average household size

2.24

persons per household

Washington County

2.24

Colorado

2.42

United States

2.53

Household & Family COMPOSITION

Households

Percentage of Washington County population

	Washington County	Colorado	United States
Total households	2,070	2,374,218	129,227,496
Average houshold size	2.24	2.42	2.53
Family households	1,312	1,465,097	82,990,528
Average family size	2.9	3.01	3.14
Married couple family	1,126	1,147,437	60,637,388
Other families	186	317,660	22,353,140
Male householder	86	106,780	6,572,819
Female householder	100	210,880	15,780,321
Non-family households	758	909,121	46,236,968
One-person households	690	679,604	37,140,836
Male householder	358	330,797	16,871,444
Senior (65+) living alone	105	88,830	5,225,110
Female householder	332	348,807	20,269,392
Senior (65+) living alone	203	157,958	10,089,070
Other living arrangements	68	229,517	9,096,132

Housing Profile

Housing stock, ownership, rentals, and cost burdens

Total housing units

2,287

housing units

Washington County 2,287

Colorado 2,589,053

United States 143,775,355

Occupancy status

90.5% occupied

Occupied 90.5%

Vacant 9.5%

vacancy rate

Washington County 9.5%

Colorado 8.3%

United States 10.1%

Housing Characteristics

How the housing supply is structured and used

Types of Housing unit

84.7%

Single family houses

84.7%

Apartments in multi-unit structures

3.9%

Mobile homes

10.7%

Boat, RV, van, etc

0.6%

Median Year Built

1960

Half of houses were built before 1960, and half after.

Historic ∙ 1939 or earlier

31.1%

Postwar & mid-century ∙ 1940 - 1969

29.5%

Late 20th century ∙ 1970 - 1999

27.8%

Modern ∙ 2000 or later

11.5%

Note: Median year built reflects occupied units only; distribution includes all units.

Housing Characteristics

Units, rooms & bedrooms

Physical characteristics of housing units

	Washington County	Colorado	United States
Rooms per unit
Median rooms	6.2	5.7	5.5
1–3 rooms	5.2%	17.3%	15.1%
4–6 rooms	49.4%	43.7%	51.6%
7+ rooms	45.4%	39.1%	33.4%
Bedrooms
No bedroom / studio	0.1%	2.7%	2.9%
1 bedroom	6.8%	11.7%	10.9%
2 bedrooms	27.1%	24.1%	25%
3 bedrooms	38%	32.3%	38.7%
4+ bedrooms	28%	29.2%	22.4%
At a glance
Median year built	1960	1988	1981
Total housing units	2,287	2,589,053	143,775,355

Occupancy Profile

Who is inside and how they use it

Homeownership

73.6% owners

Renter-occupied 26.4%

Owner-occupied 73.6%

homeownership rate

Washington County 73.6%

Colorado 66.2%

United States 65.2%

Average household size

2.33

Owner-occupied

2.01

Renter-occupied

owner-occupied average size

Washington County 2.33

Colorado 2.56

United States 2.64

Housing Characteristics

Occupied unit characteristics

Tenure, crowding, and utilities

	Washington County	Colorado	United States
Total occupied units	2,070	2,374,218	129,227,496
Year moved in
2020 or later	20.4%	30.5%	24.8%
2010 to 2019	38.6%	41%	39.6%
2000 to 2009	16.9%	14.8%	16.4%
1999 or earlier	24.1%	13.8%	19.1%
Occupants per room
1.00 or fewer	99.7%	97.6%	96.6%
1.01 to 1.50	0.2%	1.6%	2.2%
1.51 or more	0.1%	0.8%	1.2%
Vehicles availability
No vehicles	5.2%	5.2%	8.4%
1 vehicle	24.2%	30.7%	33.1%
2 vehicles	29.5%	38.8%	36.6%
3 or more vehicles	41.2%	25.4%	21.9%
House heating fuel used
Gas	76.1%	71.3%	51.4%
Electricity	19%	25.6%	41.3%
Solar	0.1%	0.5%	0.3%
Fuel oil, kerosene etc	1.9%	0.1%	3.9%
All other fuels	2.9%	2%	2%
No fuel used	0%	0.5%	1.2%
Selected characteristics
Lacking complete plumbing	0.3%	0.3%	0.4%
Lacking complete kitchen	0%	0.7%	0.8%
No telephone service available	2.3%	0.7%	0.9%

Housing Value

What owner-occupied units are worth

Median home value

$226,200

owner-occupied units

Median value(USD)

Washington County

$226,200

Colorado

$539,400

United States

$332,700

Housing Cost Burden

31.9%

of homeowners with a mortgage are cost-burdened

% Cost-Burdened Households

Owners with a mortgage

31.9%

Owners without a mortgage

10.2%

Renters

36%

Note: Households spending 30% or more of their income on housing costs are considered cost-burdened.

Financial characteristics

Property value and housing costs

Tenure, crowding, and utilities

	Washington County	Colorado	United States
Property value
Median Value	$226,200	$539,400	$332,700
Under $100,000	18.5%	4.8%	11.4%
$100,000 - $200,000	21.7%	3.6%	15.8%
$200,000 - $300,000	27.4%	6.8%	17.8%
$300,000 - $500,000	25.1%	30%	26.9%
$500,000 - $1,000,000	5.9%	43.6%	20.9%
$1,000,000 and more	1.4%	11.1%	7.1%
Owner-occupied households
With a mortgage	45.5%	69.4%	60.6%
Without a mortgage	54.5%	30.6%	39.4%
Median monthly owner costs
With a mortgage	$1,553	$2,326	$1,963
Without a mortgage	$539	$663	$638
Gross rent
Median rent	$947	$1,761	$1,413

Education Profile

How educated is the community and how education pays off

Adults with a college degree

24.9%

of adults 25+ with a bachelor's degree or higher

Washington County 24.9%

Colorado 45.7%

United States 35.7%

Adults without a high school diploma

10%

of adults (25+) without a high school diploma

Washington County 10%

Colorado 7.1%

United States 10.4%

School Enrollment

Who is enrolled in school and at what level

School enrollment

954

population (age 3+) enrolled in school

Nursery / Preschool

6.2%

K–12

82.9%

College / Undergraduate

9.5%

Graduate / Professional

1.4%

College-going rate (18-24 yr olds)

18.6%

of 18-24-year-olds in college or graduate school

Washington County

18.6%

Colorado

38%

United States

40.9%

Enrollment & school type

Enrollment levels, college-going rate, and public vs private school split

Population 3+ currently enrolled in a school

	Washington County	Colorado	United States
Total enrolled (age 3+)	954	1,369,681	80,089,790
Nursery / preschool	6.2%	5.9%	5.7%
K–12	82.9%	66.5%	67.6%
Kindergarten	6.9%	4.5%	5%
Elementary: Grades 1–4	30%	19.4%	19.8%
Elementary: Grades 5–8	24.1%	20.9%	21%
High School: Grades 9–12	21.9%	21.7%	21.7%
College or graduate school	10.9%	27.6%	26.7%
College, undergraduate	9.5%	21%	21%
Graduate, professional school	1.4%	6.6%	5.8%
College-going rate · 18-24 yr olds	18.6%	38%	40.9%
School type
Public school	92.2%	86%	82%
Private school	7.8%	14%	18%

Education Attainment by Level & Gender

What is the highest level of education completed among adults

Education attainment

3,438

population 25 years and over

Total adults (25+)

Less than 9th grade

3.1%

9th-12th, no diploma

6.9%

HS graduate

28%

Some college no degree

20.9%

Associates degree

16.1%

Bachelors degree

17.6%

Graduate or professional degree

7.3%

Attainment by gender

Male vs Female

Adults (25+) · Share within each education level

% male · % female

Less than 9th grade

49.1% · 50.9%

9th-12th, no diploma

62.6% · 37.4%

HS graduate

61.7% · 38.3%

Some college no degree

48.5% · 51.5%

Associates degree

39.8% · 60.2%

Bachelors degree

42.9% · 57.1%

Graduate or professional degree

59.8% · 40.2%

Educational Attainment Overview

Distribution and key education attainment rates for adults (25+)

Highest credential completed · adults 25+

	Washington County	Colorado	United States
Population (25+)	3,438	4,095,727	230,807,303
Less than 9th grade	3.1%	3.1%	4.7%
9th–12th, no diploma	6.9%	4%	5.7%
High school diploma or GED	28%	19.7%	26%
Some college, no degree	20.9%	19.2%	19.1%
Associate's degree	16.1%	8.3%	8.8%
Bachelor's degree or higher	24.9%	45.7%	35.7%
Bachelor's degree	17.6%	28.1%	21.6%
Graduate or professional	7.3%	17.6%	14.1%
High School or higher	89.9%	92.9%	89.6%

Earnings by education level

percentage as applicable

Median Earnings

$46,377

Median earnings for adults 25+, by level

Less than HS graduate

$57,778

HS graduate

$41,276

Some college or associates

$36,650

Bachelors degree

$65,592

Graduate or professional degree

$54,375

Poverty Rate

1.1%

for ages 25+, with bachelors degree or higher

Less than HS graduate

20.2%

HS graduate

10.4%

Some college or associates

7.1%

Bachelors degree or higher

1.1%

Outcomes by Education Level

Earnings and poverty rates across education levels (25+)

Adults 25+

	Washington County	Colorado	United States
Median earnings
Population 25+, with earnings	$46,377	$60,455	$52,696
Less than high school graduate	$57,778	$37,820	$32,485
High school graduate (includes equivalency)	$41,276	$45,140	$40,153
Some college or associate's degree	$36,650	$50,210	$47,260
Bachelor's degree	$65,592	$73,999	$70,044
Graduate or professional degree	$54,375	$90,992	$90,720
Poverty rates
Less than high school graduate	20.2%	19.9%	24.2%
High school graduate (includes equivalency)	10.4%	11.5%	14.4%
Some college or associate's degree	7.1%	8.8%	9.8%
Bachelor's degree or higher	1.1%	3.9%	4.5%

Insights for Washington County, by topic

Income By year By race By age By gender

Population By year By race By age By gender

About Neilsberg Research

Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.

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