Demographics of Sullivan County, New York

Sullivan County, New York had 80,586 people on July 1, 2025, by the Census Bureau’s estimate: +2,125 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Sullivan County, in four figures

80,586
Population: July 1, 2025, Vintage 2025 estimate.; +2.7%
Change since July 2020: +2,125 people.; 41.7 ±0.3
Median age: ACS 2020–⁠2024.; $72,382 ±$5,140
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Sullivan County, New York's population grew 2.7% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Sullivan County, New York's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Sullivan County, New York's population grew 2.7% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Sullivan County, New York's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	78,461	100.0	100.0
2021	79,745	101.6	100.2
2022	79,868	101.8	100.7
2023	80,413	102.5	101.6
2024	80,901	103.1	102.5
2025	80,586	102.7	103.1

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Population of Sullivan County, New York on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	78,461	−157	−61	+2	−94
2021	79,745	+1,284	+27	+47	+1,255
2022	79,868	+123	+76	+284	−179
2023	80,413	+545	+195	+447	−86
2024	80,901	+488	+170	+737	−420
2025	80,586	−315	+156	+281	−753

Age, 2020–2024

The median age is 41.7 ±0.3: for men 41.4 ±0.5 and for women 41.9 ±0.5. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Sullivan County by age, ACS 2020–2024
Age	People	Share	New York	United States
Under 5	4,785 ±189	6.0% ±0.2	5.4% ±<0.1	5.6% ±<0.1
5 to 17	12,312 ±631	15.4% ±0.8	15.0% ±<0.1	16.3% ±<0.1
18 to 24	6,495 ±726	8.1% ±0.9	8.9% ±<0.1	9.1% ±<0.1
25 to 44	19,560 ±621	24.5% ±0.8	27.1% ±<0.1	26.9% ±<0.1
45 to 64	21,220 ±667	26.6% ±0.8	25.6% ±0.1	24.8% ±<0.1
65 and over	15,349 ±733	19.3% ±0.9	17.9% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $72,382 ±$5,140, and income per person $42,334 ±$1,923, in 2024 dollars. The median is $85,974 ±$402 in New York and $80,734 ±$166 in the United States.

Households by income

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Households in Sullivan County by income, ACS 2020–2024
Household income	Households	Share	New York	United States
Under $25,000	4,925 ±569	15.7% ±1.8	16.0% ±0.1	14.6% ±<0.1
$25,000 to $49,999	5,962 ±592	19.0% ±1.8	15.1% ±0.1	16.7% ±<0.1
$50,000 to $74,999	5,212 ±513	16.6% ±1.6	13.6% ±0.1	15.5% ±<0.1
$75,000 to $99,999	4,041 ±447	12.9% ±1.4	11.4% ±0.1	12.6% ±<0.1
$100,000 to $149,999	5,060 ±482	16.1% ±1.5	16.7% ±0.1	17.5% ±<0.1
$150,000 to $199,999	2,746 ±393	8.7% ±1.2	10.1% ±0.1	9.6% ±<0.1
$200,000 or more	3,488 ±397	11.1% ±1.2	17.1% ±0.1	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Sullivan County by age, ACS 2020–2024
Age	Below poverty	Rate	New York	United States
All ages	12,173 ±1,428	15.9% ±1.9	14.0% ±0.2	12.5% ±0.1
Under 18	3,918 ±618	23.5% ±3.5	18.3% ±0.2	16.1% ±0.1
18 to 59	5,770 ±877	14.7% ±2.2	12.8% ±0.1	11.6% ±0.1
60 and over	2,485 ±440	11.9% ±2.1	13.1% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Sullivan County, ACS 2020–2024
Measure	Sullivan County	New York	United States
Housing units	49,994 ±173	8,585,241 ±652	143,775,355 ±10,234
Occupied	62.9% ±1.7	90.0% ±0.1	89.9% ±0.1
Vacant	37.1% ±1.6	10.0% ±0.1	10.1% ±0.1
Owner occupied	67.4% ±1.7	54.3% ±0.2	65.2% ±0.3
Renter occupied	32.6% ±2.4	45.7% ±0.1	34.8% ±0.1
Median home value	$249,000 ±$8,949	$423,800 ±$1,627	$332,700 ±$236
Median gross rent	$1,106 ±$52	$1,621 ±$7	$1,413 ±$2
Median year built	1974 ±2	1959 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Sullivan County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	New York	United States
Hispanic or Latino	15,158 ±0	19.0% ±<0.1	19.8% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	52,633 ±360	66.0% ±0.5	52.8% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	6,685 ±362	8.4% ±0.5	13.4% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	1,683 ±97	2.1% ±0.1	9.0% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	121 ±46	0.2% ±0.1	0.2% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 155	0% to 0.2%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	586 ±235	0.7% ±0.3	1.0% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	2,834 ±432	3.6% ±0.5	3.8% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Sullivan County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	New York	United States
Born in the state	55,005 ±1,198	69.0% ±1.5	62.4% ±0.1	57.3% ±<0.1
Born in another state	12,026 ±949	15.1% ±1.2	12.3% ±0.1	26.9% ±<0.1
Born a citizen outside the states	2,355 ±494	3.0% ±0.6	2.5% ±<0.1	1.7% ±<0.1
Born abroad	10,335 ±855	13.0% ±1.1	22.8% ±0.1	14.1% ±<0.1
Naturalized citizens	5,175 ±677	6.5% ±0.8	13.6% ±0.1	7.4% ±<0.1
Not citizens	5,160 ±773	6.5% ±1.0	9.2% ±0.1	6.8% ±<0.1

Sullivan County among the counties of New York

32nd of 62 by population, July 2025. Every one is listed on the New York page.

Counties of New York near Sullivan County in population, July 2025
County	July 2025	Change since 2020
St. Lawrence County	105,488	−2.5%
Tompkins County	104,047	−1.4%
Putnam County	99,028	+1.4%
Steuben County	91,855	−1.6%
Wayne County	91,250	+0.1%
Sullivan County	80,586	+2.7%
Chemung County	80,415	−3.9%
Clinton County	78,138	−2.0%
Cattaraugus County	75,390	−2.1%
Cayuga County	74,365	−2.3%
Madison County	67,120	−1.2%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026