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
Age is the most distinctive thing about Sullivan County: a median age of 56.1, older than the national median. With 5,849 residents, Sullivan County is a county in Pennsylvania.
The typical household here earns about $64,758, below the US median of $78,538. Only 6.6% of residents live in poverty, below the national 12.4%. Median home value is $186,400, with typical rent around $781.
Roughly 19.7% of adults have a bachelor’s, below the national 35.0%. About 6.2% of the workforce is home-based, below the national 14.0%, and the average commute runs about 31 minutes each way.
The age structure shapes everything downstream in Sullivan County — from housing demand to the mix of working-age earners reflected in the income figures above.
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.