County Maps US

Sullivan County, Tennessee

A county in Tennessee, ranked 10 of 95 by population.

CountyFIPS 47163

Within Tennessee
Sullivan County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Blountville, the county seat, located via the 2025 Census Gazetteer.

Download SVGFull Tennessee map downloads

Population
163,759
+5,521 (+3.5%) since 2020
Land area
413.5
square miles. A further 3.8% of the total area is water
Population density
396
people per square mile, computed rather than published
County seat
Blountville
Seat of county government.
Established
1779
246 years ago
Largest city
Kingsport city
Population 54,660 for the whole place, which extends beyond this county.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Sullivan County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Sullivan County, Tennessee from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 800 by 313 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Sullivan County ranks

Position among the 95 counties of Tennessee, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn TennesseeNationally
Population163,75910th of 95429th of 3,144
Land area413.5 sq mi56th of 952,445th of 3,144
Population density396 per sq mi11th of 95347th of 3,144
Median household income$58,80751st of 952,192nd of 3,143

Full data for Sullivan County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population163,759Vintage 2025 Population Estimates
Population in 2020158,238Vintage 2025 Population Estimates
2020 estimates base?158,146Vintage 2025 Population Estimates
Land area413.5 sq mi2025 Gazetteer Files
Water area16.2 sq mi2025 Gazetteer Files
Total area429.7 sq mi2025 Gazetteer Files
Population density?396 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$58,807American Community Survey 2020-2024 5-Year Estimates
Median home value$213,300American Community Survey 2020-2024 5-Year Estimates
Median age45.0American Community Survey 2020-2024 5-Year Estimates
Households68,907American Community Survey 2020-2024 5-Year Estimates
Housing units76,324American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
-873
1,529 births, 2,402 deaths
Net migration
+1,939
More people moved in than moved out.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 7 areas bordering Sullivan County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Washington CountyTennessee30 mi141,199
Carter CountyTennessee24 mi57,361
Washington CountyVirginia22 mi53,898
Hawkins CountyTennessee18 mi59,559
Scott CountyVirginia18 mi21,200
Johnson CountyTennessee14 mi18,718
Bristol cityVirginia5.5 mi16,418

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 95 counties of Tennessee

Open the interactive Tennessee county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.