Washington County, Colorado Age & Gender Statistics (2024)

Total Population

4,831

Median Age

41.3

Male Median

39.4

Female Median

43.1

Washington County, Colorado Population Growth

Population trends in
Figure 1: Annual population growth trend for (2010–2024).

Washington County, Colorado Demographic Trend

Since 2010, the population of has changed by +1.2%%.

+1.2%% Growth

Washington County, Colorado Age & Gender Pyramid

Population pyramid for

Figure 2: Population distribution by age and gender for 2024.


Washington County, Colorado Historical Population Data

YearMedian AgePopulation
202441.34,831
202341.24,839
202240.24,817
202141.04,834
202041.34,869
201941.64,868
201841.64,840
201742.24,809
201642.84,814
201544.44,795
201444.14,781
201344.24,796
201244.24,796
201144.24,709
201043.14,773

Washington County, Colorado Age Group Breakdown (2024)

Age CohortPercentage
Under 55.2%
5–1717.0%
18–246.7%
25–3411.6%
35–5423.8%
55–6413.3%
65+22.5%

Dependency Ratios for Washington County, Colorado

Total Dependency Ratio:
80.7
Youth Dependency:
40.1
Old-Age Dependency:
40.6

The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).



Age & Gender FAQs for Washington County, Colorado

The median age in Washington County, Colorado is 41.3 years.

According to latest Census data, the total population of Washington County, Colorado is 4,831.

In Washington County, Colorado, seniors (ages 65+) make up 22.5% of the population, while children under 18 represent 17.0%.

Based on historical data since 2010, the population in Washington County, Colorado is becoming younger.
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