Sullivan County, New York Age & Gender Statistics (2024)

Total Population

79,721

Median Age

41.7

Male Median

41.4

Female Median

41.9

Sullivan County, New York Population Growth

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

Sullivan County, New York Demographic Trend

Since 2010, the population of has changed by +2.7%%.

+2.7%% Growth

Sullivan County, New York Age & Gender Pyramid

Population pyramid for

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


Sullivan County, New York Historical Population Data

YearMedian AgePopulation
202441.779,721
202341.779,147
202241.978,725
202142.378,230
202042.875,329
201942.875,116
201842.975,211
201742.675,783
201642.575,818
201542.276,330
201441.876,892
201341.777,134
201241.877,340
201141.577,553
201041.277,625

Sullivan County, New York Age Group Breakdown (2024)

Age CohortPercentage
Under 56.0%
5–1715.4%
18–248.1%
25–3412.0%
35–5424.7%
55–6414.5%
65+19.3%

Dependency Ratios for Sullivan County, New York

Total Dependency Ratio:
68.6
Youth Dependency:
36.2
Old-Age Dependency:
32.5

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



Age & Gender FAQs for Sullivan County, New York

The median age in Sullivan County, New York is 41.7 years.

According to latest Census data, the total population of Sullivan County, New York is 79,721.

In Sullivan County, New York, seniors (ages 65+) make up 19.3% of the population, while children under 18 represent 15.4%.

Based on historical data since 2010, the population in Sullivan County, New York has remained stable.
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