St. Louis city, Missouri Age & Gender Statistics (2024)

Total Population

288,512

Median Age

36.8

Male Median

36.3

Female Median

37.3

St. Louis city, Missouri Population Growth

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

St. Louis city, Missouri Demographic Trend

Since 2010, the population of has changed by -9.5%%.

-9.5%% Growth

St. Louis city, Missouri Age & Gender Pyramid

Population pyramid for

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


St. Louis city, Missouri Historical Population Data

YearMedian AgePopulation
202436.8288,512
202336.6293,109
202236.5298,018
202136.3302,787
202036.0304,709
201935.8308,174
201835.5311,273
201735.2314,867
201634.8316,030
201534.6317,850
201434.4318,727
201334.2318,955
201234.0318,527
201133.9318,367
201034.0318,809

St. Louis city, Missouri Age Group Breakdown (2024)

Age CohortPercentage
Under 55.7%
5–1712.6%
18–248.7%
25–3419.7%
35–5425.6%
55–6412.3%
65+15.5%

Dependency Ratios for St. Louis city, Missouri

Total Dependency Ratio:
51.1
Youth Dependency:
27.7
Old-Age Dependency:
23.4

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



Age & Gender FAQs for St. Louis city, Missouri

The median age in St. Louis city, Missouri is 36.8 years.

According to latest Census data, the total population of St. Louis city, Missouri is 288,512.

In St. Louis city, Missouri, seniors (ages 65+) make up 15.5% of the population, while children under 18 represent 12.6%.

Based on historical data since 2010, the population in St. Louis city, Missouri is aging.
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