• county
  • FIPS 47179
  • Largest town: Johnson City

Washington County, Tennessee

Washington County had 139,642 residents in the Census Vintage 2024 estimate, on 326.6 square miles of land. It ranks 12th of 95 in Tennessee by population and 68th by land area.

Population
139,642
#12 of 95 in Tennessee · #480 in US
Area
326.6 sq mi
#68 of 95 in Tennessee · #2,749 in US
Density
428 / sq mi
#8 of 95 in Tennessee · #323 in US
Median household income
$62,028
#32 of 95 in Tennessee · #1,639 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Washington County within Tennessee. Pin: Nashville.

Measure from here

Tools and pages that start from Washington County

Washington County population, land area and income

Washington County had 139,642 residents in the Census Vintage 2024 estimate, on 326.6 square miles of land. It ranks 12th of 95 in Tennessee by population and 68th by land area. That works out to 427.6 people per square mile, 4.4 times the US average of 96.3, and in the top quarter nationally.

The median county-equivalent in Tennessee has 32,883 residents, so Washington County is 4.2 times that size.

Its SAIPE 2023 median household income of $62,028 is below the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

139,642

3144th1st

480th of 3,144 (US)

Land area

327 sq mi

3144th1st

2749th of 3,144 (US)

Density

427.6 / sq mi

3144th1st

323rd of 3,144 (US)

Median household income

$62,028

3143rd1st

1639th of 3,143 (US)

Rank within Tennessee (95)

Population

139,642

95th1st

12th of 95 (TN)

Land area

327 sq mi

95th1st

68th of 95 (TN)

Density

427.6 / sq mi

95th1st

8th of 95 (TN)

Median household income

$62,028

95th1st

32nd of 95 (TN)

How Washington County's population changed since 2020

Washington County gained 6,417 residents between the July 2020 and July 2024 estimates, a rise of 4.8%. That ranks 41st of 95 in Tennessee for growth. The median Tennessee county changed by +4.4%, and the state as a whole by +4.3%.

Since the April 2020 estimates base, Washington County recorded 5,299 births and 7,711 deaths, a natural change of -2,412. Net international migration added +920 and net domestic migration, people moving to or from other US counties, came to +7,800. The largest single component was domestic migration, which added 7,800 people.

133.2k2020133.5k2021136.3k2022138.6k2023139.6k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
5,299
Deaths
7,711
Net international migration
+920
Net domestic migration
+7,800
Change, July 2023 to July 2024
+1,014

Where Washington County is

The Census internal point of Washington County is at 36.295700, -82.495000. It sits in UTM zone 17N. The map shades Tennessee's 95 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Washington County outlined. Dots are towns of 1,000+ people with residents in it.

Warren County: +6.2%Bledsoe County: +4.3%Cheatham County: +3.7%Crockett County: +0.5%Putnam County: +6.0%Houston County: +2.8%Macon County: +7.6%Sequatchie County: +11.2%Fayette County: +6.2%Trousdale County: +4.5%Union County: +6.1%Claiborne County: +3.1%Weakley County: +0.8%Coffee County: +5.4%Johnson County: +2.8%Overton County: +4.3%Lake County: -8.1%Moore County: +4.7%Hardeman County: -0.0%Jefferson County: +7.8%Smith County: +4.1%Robertson County: +7.5%Gibson County: +1.9%Henry County: +2.3%Grundy County: +4.4%Decatur County: +3.2%Greene County: +4.3%Hamblen County: +4.9%Humphreys County: +2.9%Knox County: +5.5%Roane County: +5.7%Lewis County: +6.4%Rhea County: +4.4%Rutherford County: +9.8%Montgomery County: +11.2%Lauderdale County: -2.0%Shelby County: -2.1%Tipton County: +1.9%Perry County: +7.2%Stewart County: +4.8%Chester County: +2.8%Washington County: +4.8%Polk County: +4.4%Van Buren County: +8.3%Dyer County: -0.8%Davidson County: +1.9%Cocke County: +4.3%Williamson County: +7.8%Benton County: +2.0%Dickson County: +5.9%Lawrence County: +5.2%Hamilton County: +5.0%McNairy County: +0.9%Meigs County: +8.8%Hawkins County: +4.7%Blount County: +4.8%White County: +6.1%Marshall County: +9.8%Sullivan County: +2.8%Campbell County: +2.4%Haywood County: -4.1%Bradley County: +4.5%Franklin County: +5.4%Sumner County: +7.2%Hardin County: +2.4%Grainger County: +6.4%Hickman County: +3.6%Pickett County: +2.2%Carroll County: +2.4%Henderson County: +1.3%Sevier County: +1.3%Hancock County: +6.2%Scott County: +2.9%McMinn County: +6.4%Morgan County: +4.3%Lincoln County: +4.0%Obion County: -1.7%Unicoi County: -0.0%Wayne County: -1.5%Cannon County: +4.0%Fentress County: +8.6%Loudon County: +12.7%Wilson County: +14.3%Bedford County: +7.6%Monroe County: +5.9%DeKalb County: +7.7%Marion County: +3.2%Carter County: +1.9%Clay County: +3.5%Madison County: +1.6%Cumberland County: +6.9%Anderson County: +5.3%Maury County: +11.4%Giles County: +2.1%Jackson County: +6.4%
Change 2020 to 2024
  1. < +1.9%
  2. < +3.7%
  3. < +4.9%
  4. < +6.4%
  5. ≥ +6.4%
no data

Orange pin: Washington County internal point. Dark pin: Nashville.

Internal point

Decimal
36.295700, -82.495000
DMS
36°17'44.52"N 82°29'42.00"W
UTM
17N 365759.4E 4017783.6N
Geohash
dnmq6z2vz
Plus code
868V7GW4+72

Towns in Washington County

2 incorporated places of 1,000+ people have residents in Washington County, 78,141 people together, or 56% of the county. Each figure counts only the part of the town inside Washington County; towns marked "part" extend into another county. The largest is Johnson City with 71,395.

  1. 01Johnson City (part)71,395
  2. 02Jonesborough6,746
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Washington County

The Census 2024 county adjacency file lists 5 neighbors for Washington County. The most populous is Sullivan County, TN, with 162,703 residents. Distances run between Census internal points in a straight line.

Distance to Nashville and the nearest big city

Nashville is 239.2 miles W of Washington County's internal point in a straight line. The nearest place of 100,000 or more is Knoxville, TN (population 198,722), 84.2 miles away. The nearest place of 10,000 or more is Johnson City, TN (population 73,635), 7.1 miles away.

Washington County FIPS code

The FIPS code of Washington County is 47179: state code 47 for Tennessee plus county code 179. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $62,028.

Questions people ask

What is the population of Washington County, Tennessee?

The Census Vintage 2024 estimate for July 1, 2024 is 139,642. That is up 6,417 people (4.8%) from the July 2020 estimate of 133,225.

What is the FIPS code of Washington County?

47179. The first two digits (47) are Tennessee; the last three (179) identify the county.

What is the largest town in Washington County?

Johnson City, with 71,395 residents inside Washington County in 2024 (73,635 across all 3 counties it spans).

Which counties border Washington County?

5 county-equivalents border it in the Census 2024 adjacency file: Sullivan County, TN; Greene County, TN; Hawkins County, TN; Carter County, TN; Unicoi County, TN.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.