Sullivan County, New York Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 33rd-largest in New York
The population of Sullivan County, New York is 79,147 as of the 2023 American Community Survey, making it the 33rd-largest county in New York. The median household income is $69,826, the median home value is $234,800, and the median age is 41.7.
The population of Sullivan County has grown 3.8% since 2010 (77,480 → 80,450), a +0.27% annualized rate.
79,147
Population
+0.27%
Annual growth
82
People / sq mi
$69,826
Median Income
$234,800
Median Home Value
Sullivan County covers 968 sq mi of land at 81.8 people per square mile.
About Sullivan County, NY
Sullivan County is a county in New York with a population of 79,147. It ranks #33 among counties in New York by population. The median age is 41.7, older than the national median. The population is 51.8% male and 48.2% female.
The median household income in Sullivan County is $69,826, below the US median of $74,580. 9.9% of residents live below the federal poverty level. Home values sit at a median of $234,800, with monthly rent averaging $999. The homeownership rate of 69.3% is higher than the national rate of 64.8%.
Educational attainment in Sullivan County reflects 29.7% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 11.8% of workers primarily work from home, similar to the national work-from-home rate of 14.2%. The average commute is 27.8 minutes each way.
Sullivan County Population History (2010-2024)
The county of Sullivan County had a population of 77,480 in 2010 and 80,450 in 2024, a 3.8% growth over 14 years. The peak was 80,450 in 2024. Average annual growth rate: 0.28%.
80,450
Population (2024)
77,480
Population (2010)
80,450
Peak (2024)
0.28%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 77,480 |
| 2011 | 77,061 |
| 2012 | 76,940 |
| 2013 | 76,957 |
| 2014 | 75,651 |
| 2015 | 74,850 |
| 2016 | 74,913 |
| 2017 | 75,000 |
| 2018 | 75,381 |
| 2019 | 75,551 |
| 2020 | 78,465 |
| 2021 | 79,731 |
| 2022 | 79,768 |
| 2023 | 80,190 |
| 2024 | 80,450 |
Race & Ethnicity
| White | 71.6% |
| Black or African American | 8.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.9% |
| Two or More Races | 0.0% |
Age & Sex
41.7
Median Age
48.2%
Female
51.8%
Male
19.0%
Age 65+
Age Distribution
Children (under 15): 17.7% · Seniors (65+): 19.0%
Income & Poverty
| Median household income | $69,826$-14,752 vs state |
| Mean household income | $101,841 |
| Per-capita income | $40,474 |
| Poverty rate | 9.9%+0.1% vs state |
| Unemployment rate | 3.6% |
| Employment-to-population | 55.5% |
Top Industries by Employment
The largest employment sector in Sullivan County is professional & business services, accounting for 29.1% of workers.
How residents commute
1.2%
Drive alone
2.8%
Carpool
73.5%
Public transit
11.8%
Work from home
27.8 min
Avg commute
Housing
$234,800$-168,200 vs state
Median home value
$999
Median rent
69.3%
Homeownership rate
49,667
Total housing units
60.8%
Occupied
39.2%
Vacant
30.7%
Renter-occupied
Social & access
94.6%
With health insurance
92.8%
With broadband internet
15.6%
Foreign-born
6.0%
Veterans (18+)
16.2%
With a disability
79.9%
Speak language other than English at home
Education
87.7%
High School+
29.7%
Bachelor's+
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Other counties in New York
Part of New York
Metro areas in New York
County rankings
Frequently Asked Questions
Sullivan County, New York has a population of 79,147 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 33rd-largest county in New York. Population density is 82 people per square mile.
The population of Sullivan County has grown 3.8% since 2010 (77,480 → 80,450), a +0.27% annualized rate.
The median household income in Sullivan County, New York is $69,826, with mean (average) household income of $101,841 and per-capita income of $40,474. 9.9% of residents live below the federal poverty level.
In Sullivan County, the largest racial and ethnic groups are White (71.6%), Black or African American (8.7%), Hispanic or Latino (2.9%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Sullivan County, New York is 41.7 years. Residents are 48.2% female and 51.8% male.
The median home value in Sullivan County is $234,800 and median monthly rent is $999. 69.3% of occupied housing units are owner-occupied. The county has 49,667 total housing units, 39.2% of which are vacant.
The largest employment sector in Sullivan County, New York is professional, scientific, and management services, employing 29.1% of workers. The unemployment rate is 3.6%.
New York is among the largest cities associated with Sullivan County, New York, with a population of 8,516,202.
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Statewide data for New York
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.