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 distinguished by its share of foreign-born residents, 15.6% of the population. With 79,147 residents, Sullivan County is a county in New York. It ranks #33 among counties in New York by population.
Median household income is $69,826, below the US median of $78,538. Poverty runs at 9.9%, below the national 12.4%. A typical home is worth $234,800, with typical rent around $999.
College attainment is above the local norm at 29.7%, below the national 35.0%. About 11.8% of workers primarily work from home, below the national 14.0%, and the average commute runs about 28 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.