Franklin County, Washington Age & Gender Statistics (2024)

Total Population

98,902

Median Age

30.9

Male Median

31.0

Female Median

30.7

Franklin County, Washington Population Growth

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

Franklin County, Washington Demographic Trend

Since 2010, the population of has changed by +38.7%%.

+38.7%% Growth

Franklin County, Washington Age & Gender Pyramid

Population pyramid for

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


Franklin County, Washington Historical Population Data

YearMedian AgePopulation
202430.998,902
202330.897,676
202230.696,692
202130.595,313
202030.493,681
201930.392,009
201830.090,660
201729.989,124
201629.387,810
201529.186,443
201428.984,508
201328.781,835
201228.478,680
201128.575,102
201028.471,329

Franklin County, Washington Age Group Breakdown (2024)

Age CohortPercentage
Under 57.9%
5–1723.0%
18–2410.4%
25–3414.6%
35–5425.1%
55–648.6%
65+10.4%

Dependency Ratios for Franklin County, Washington

Total Dependency Ratio:
70.3
Youth Dependency:
52.6
Old-Age Dependency:
17.7

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



Age & Gender FAQs for Franklin County, Washington

The median age in Franklin County, Washington is 30.9 years.

According to latest Census data, the total population of Franklin County, Washington is 98,902.

In Franklin County, Washington, seniors (ages 65+) make up 10.4% of the population, while children under 18 represent 23.0%.

Based on historical data since 2010, the population in Franklin County, Washington is aging.
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