Buffalo County, South Dakota Age & Gender Statistics (2024)

Total Population

1,808

Median Age

22.8

Male Median

21.4

Female Median

25.9

Buffalo County, South Dakota Population Growth

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

Buffalo County, South Dakota Demographic Trend

Since 2010, the population of has changed by -6.4%%.

-6.4%% Growth

Buffalo County, South Dakota Age & Gender Pyramid

Population pyramid for

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


Buffalo County, South Dakota Historical Population Data

YearMedian AgePopulation
202422.81,808
202326.21,757
202224.01,859
202125.41,974
202026.12,005
201925.82,026
201825.82,053
201725.32,048
201625.12,052
201525.92,038
201425.92,013
201324.81,966
201226.41,950
201125.31,936
201023.41,932

Buffalo County, South Dakota Age Group Breakdown (2024)

Age CohortPercentage
Under 513.0%
5–1726.2%
18–2413.9%
25–3410.0%
35–5418.4%
55–649.3%
65+9.2%

Dependency Ratios for Buffalo County, South Dakota

Total Dependency Ratio:
93.6
Youth Dependency:
75.8
Old-Age Dependency:
17.8

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



Age & Gender FAQs for Buffalo County, South Dakota

The median age in Buffalo County, South Dakota is 22.8 years.

According to latest Census data, the total population of Buffalo County, South Dakota is 1,808.

In Buffalo County, South Dakota, seniors (ages 65+) make up 9.2% of the population, while children under 18 represent 26.2%.

Based on historical data since 2010, the population in Buffalo County, South Dakota has remained stable.
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