Sullivan County, Pennsylvania Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 66th-largest in Pennsylvania
The population of Sullivan County, Pennsylvania is 5,849 as of the 2023 American Community Survey, making it the 66th-largest county in Pennsylvania. The median household income is $64,758, the median home value is $186,400, and the median age is 56.1.
The population of Sullivan County has declined 7.5% since 2010 (6,410 → 5,927), a -0.56% annualized rate.
5,849
Population
-0.56%
Annual growth
13
People / sq mi
$64,758
Median Income
$186,400
Median Home Value
Sullivan County covers 450 sq mi of land at 13.0 people per square mile.
About Sullivan County, PA
Sullivan County is a county in Pennsylvania with a population of 5,849. It ranks #66 among counties in Pennsylvania by population. The median age is 56.1, older than the national median. The population is 52.2% male and 47.8% female.
The median household income in Sullivan County is $64,758, below the US median of $74,580. 6.6% of residents live below the federal poverty level. Home values sit at a median of $186,400, with monthly rent averaging $781. The homeownership rate of 83.2% is higher than the national rate of 64.8%.
Educational attainment in Sullivan County reflects 19.7% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 6.2% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 30.6 minutes each way.
Sullivan County Population History (2010-2024)
The county of Sullivan County had a population of 6,410 in 2010 and 5,927 in 2024, a -7.5% growth over 14 years. The peak was 6,417 in 2011. Average annual growth rate: -0.55%.
5,927
Population (2024)
6,410
Population (2010)
6,417
Peak (2011)
-0.55%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 6,410 |
| 2011 | 6,417 |
| 2012 | 6,405 |
| 2013 | 6,303 |
| 2014 | 6,280 |
| 2015 | 6,266 |
| 2016 | 6,123 |
| 2017 | 6,136 |
| 2018 | 6,057 |
| 2019 | 5,959 |
| 2020 | 5,831 |
| 2021 | 5,864 |
| 2022 | 5,892 |
| 2023 | 5,925 |
| 2024 | 5,927 |
Race & Ethnicity
| White | 94.6% |
| Black or African American | 2.3% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.1% |
| Two or More Races | 0.0% |
Age & Sex
56.1
Median Age
47.8%
Female
52.2%
Male
30.4%
Age 65+
Age Distribution
Children (under 15): 8.3% · Seniors (65+): 30.4%
Income & Poverty
| Median household income | $64,758$-11,323 vs state |
| Mean household income | $81,442 |
| Per-capita income | $38,338 |
| Poverty rate | 6.6%-1.5% vs state |
| Unemployment rate | 3.3% |
| Employment-to-population | 48.9% |
Top Industries by Employment
The largest employment sector in Sullivan County is professional & business services, accounting for 22.4% of workers.
How residents commute
0.1%
Drive alone
3.8%
Carpool
80.8%
Public transit
6.2%
Work from home
30.6 min
Avg commute
Housing
$186,400$-54,100 vs state
Median home value
$781
Median rent
83.2%
Homeownership rate
5,601
Total housing units
45.3%
Occupied
54.7%
Vacant
16.8%
Renter-occupied
Social & access
95.4%
With health insurance
91.8%
With broadband internet
17.0%
Foreign-born
9.5%
Veterans (18+)
15.7%
With a disability
97.2%
Speak language other than English at home
Education
91.8%
High School+
19.7%
Bachelor's+
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County rankings
Frequently Asked Questions
Sullivan County, Pennsylvania has a population of 5,849 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 66th-largest county in Pennsylvania. Population density is 13 people per square mile.
The population of Sullivan County has declined 7.5% since 2010 (6,410 → 5,927), a -0.56% annualized rate.
The median household income in Sullivan County, Pennsylvania is $64,758, with mean (average) household income of $81,442 and per-capita income of $38,338. 6.6% of residents live below the federal poverty level.
In Sullivan County, the largest racial and ethnic groups are White (94.6%), Black or African American (2.3%), Hispanic or Latino (1.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Sullivan County, Pennsylvania is 56.1 years. Residents are 47.8% female and 52.2% male.
The median home value in Sullivan County is $186,400 and median monthly rent is $781. 83.2% of occupied housing units are owner-occupied. The county has 5,601 total housing units, 54.7% of which are vacant.
The largest employment sector in Sullivan County, Pennsylvania is professional, scientific, and management services, employing 22.4% of workers. The unemployment rate is 3.3%.
Philadelphia is among the largest cities associated with Sullivan County, Pennsylvania, with a population of 1,582,432.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.