Pierce County, Washington Age & Gender Statistics (2024)

Total Population

930,319

Median Age

37.0

Male Median

35.9

Female Median

38.1

Pierce County, Washington Population Growth

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

Pierce County, Washington Demographic Trend

Since 2010, the population of has changed by +18.9%%.

+18.9%% Growth

Pierce County, Washington Age & Gender Pyramid

Population pyramid for

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


Pierce County, Washington Historical Population Data

YearMedian AgePopulation
202437.0930,319
202336.8924,106
202236.5918,993
202136.4910,225
202036.2891,862
201936.1877,013
201836.1859,840
201736.0845,193
201636.0832,896
201535.8821,952
201435.8812,689
201335.8805,434
201235.7798,528
201135.7791,528
201035.6782,681

Pierce County, Washington Age Group Breakdown (2024)

Age CohortPercentage
Under 56.0%
5–1717.0%
18–248.7%
25–3415.4%
35–5426.4%
55–6411.8%
65+14.8%

Dependency Ratios for Pierce County, Washington

Total Dependency Ratio:
60.7
Youth Dependency:
37.0
Old-Age Dependency:
23.8

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



Age & Gender FAQs for Pierce County, Washington

The median age in Pierce County, Washington is 37.0 years.

According to latest Census data, the total population of Pierce County, Washington is 930,319.

In Pierce County, Washington, seniors (ages 65+) make up 14.8% of the population, while children under 18 represent 17.0%.

Based on historical data since 2010, the population in Pierce County, Washington has remained stable.
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