Data / Rankings / Uninsured rate, ages 18 to 64 (US model-based estimate) / Counties in Tennessee

Counties in Tennessee by uninsured rate, ages 18 to 64 (US model-based estimate)

Sevier County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 95 counties in 2018, at 21.2%. Williamson County had the lowest, at 7.3%. The median was 15.1% and the figure for Tennessee was 14.6%. Source: the U.S. Census Bureau.

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Highest21.2Sevier County
Lowest7.3Williamson County
Median15.195 counties
Tennessee14.6History

Map of counties, 2018

Anderson County: 14.2 %Bedford County: 18.4 %Benton County: 15.5 %Bledsoe County: 20.7 %Blount County: 13.8 %Bradley County: 16.6 %Campbell County: 16 %Cannon County: 15 %Carroll County: 14.2 %Carter County: 15.8 %Cheatham County: 13.9 %Chester County: 15.5 %Claiborne County: 14.1 %Clay County: 16.1 %Cocke County: 14.6 %Coffee County: 14.3 %Crockett County: 17.7 %Cumberland County: 15.3 %Davidson County: 16.6 %Decatur County: 14.9 %DeKalb County: 18.4 %Dickson County: 15.7 %Dyer County: 13.6 %Fayette County: 11.5 %Fentress County: 16.3 %Franklin County: 13.9 %Gibson County: 13.8 %Giles County: 14.5 %Grainger County: 16.4 %Greene County: 15.1 %Grundy County: 18.6 %Hamblen County: 18.1 %Hamilton County: 14.4 %Hancock County: 14.9 %Hardeman County: 14.9 %Hardin County: 15.3 %Hawkins County: 14.2 %Haywood County: 14.2 %Henderson County: 15.1 %Henry County: 14 %Hickman County: 16.3 %Houston County: 15.5 %Humphreys County: 15.5 %Jackson County: 16.6 %Jefferson County: 14.8 %Johnson County: 15.7 %Knox County: 12.4 %Lake County: 14.1 %Lauderdale County: 15.9 %Lawrence County: 15.4 %Lewis County: 16.2 %Lincoln County: 15 %Loudon County: 15.6 %McMinn County: 15.6 %McNairy County: 15.9 %Macon County: 18 %Madison County: 14 %Marion County: 14 %Marshall County: 13.5 %Maury County: 12.3 %Meigs County: 14.6 %Monroe County: 17.3 %Montgomery County: 11 %Moore County: 11 %Morgan County: 16.1 %Obion County: 14.1 %Overton County: 15.1 %Perry County: 16.6 %Pickett County: 16.3 %Polk County: 16.6 %Putnam County: 14.7 %Rhea County: 15.7 %Roane County: 13.4 %Robertson County: 14.7 %Rutherford County: 12.3 %Scott County: 16.7 %Sequatchie County: 14.2 %Sevier County: 21.2 %Shelby County: 16.9 %Smith County: 14.1 %Stewart County: 14.9 %Sullivan County: 14.4 %Sumner County: 12.2 %Tipton County: 13.7 %Trousdale County: 15.2 %Unicoi County: 14.5 %Union County: 16.4 %Van Buren County: 16.5 %Warren County: 19.1 %Washington County: 12.8 %Wayne County: 15.8 %Weakley County: 15.2 %White County: 15.1 %Williamson County: 7.3 %Wilson County: 11.4 %
  • Under 14
  • 14 to 15
  • 15 to 16
  • 16 to 17
  • 17 and over
%, 2018. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2018

Sevier County: 21.2 %Sevier County21.2Bledsoe County: 20.7 %Bledsoe County20.7Warren County: 19.1 %Warren County19.1Grundy County: 18.6 %Grundy County18.6Bedford County: 18.4 %Bedford County18.4DeKalb County: 18.4 %DeKalb County18.4Hamblen County: 18.1 %Hamblen County18.1Macon County: 18 %Macon County18Crockett County: 17.7 %Crockett County17.7Monroe County: 17.3 %Monroe County17.3Shelby County: 16.9 %Shelby County16.9Scott County: 16.7 %Scott County16.7Bradley County: 16.6 %Bradley County16.6Davidson County: 16.6 %Davidson County16.6Jackson County: 16.6 %Jackson County16.6Perry County: 16.6 %Perry County16.6Polk County: 16.6 %Polk County16.6Van Buren County: 16.5 %Van Buren County16.5Grainger County: 16.4 %Grainger County16.4Union County: 16.4 %Union County16.4Fentress County: 16.3 %Fentress County16.3Hickman County: 16.3 %Hickman County16.3Pickett County: 16.3 %Pickett County16.3Lewis County: 16.2 %Lewis County16.2Clay County: 16.1 %Clay County16.1Morgan County: 16.1 %Morgan County16.1Campbell County: 16 %Campbell County16Lauderdale County: 15.9 %Lauderdale County15.9McNairy County: 15.9 %McNairy County15.9Carter County: 15.8 %Carter County15.8Wayne County: 15.8 %Wayne County15.8Dickson County: 15.7 %Dickson County15.7Johnson County: 15.7 %Johnson County15.7Rhea County: 15.7 %Rhea County15.7Loudon County: 15.6 %Loudon County15.6McMinn County: 15.6 %McMinn County15.6Benton County: 15.5 %Benton County15.5Chester County: 15.5 %Chester County15.5Houston County: 15.5 %Houston County15.5Humphreys County: 15.5 %Humphreys County15.5Sevier County: 21.2 %Sevier County21.2Bledsoe County: 20.7 %Bledsoe County20.7Warren County: 19.1 %Warren County19.1Grundy County: 18.6 %Grundy County18.6Bedford County: 18.4 %Bedford County18.4DeKalb County: 18.4 %DeKalb County18.4Hamblen County: 18.1 %Hamblen County18.1Macon County: 18 %Macon County18Crockett County: 17.7 %Crockett County17.7Monroe County: 17.3 %Monroe County17.3Shelby County: 16.9 %Shelby County16.9Scott County: 16.7 %Scott County16.7Bradley County: 16.6 %Bradley County16.6Davidson County: 16.6 %Davidson County16.6Jackson County: 16.6 %Jackson County16.6Perry County: 16.6 %Perry County16.6Polk County: 16.6 %Polk County16.6Van Buren County: 16.5 %Van Buren County16.5Grainger County: 16.4 %Grainger County16.4Union County: 16.4 %Union County16.4Fentress County: 16.3 %Fentress County16.3Hickman County: 16.3 %Hickman County16.3Pickett County: 16.3 %Pickett County16.3Lewis County: 16.2 %Lewis County16.2Clay County: 16.1 %Clay County16.1Morgan County: 16.1 %Morgan County16.1Campbell County: 16 %Campbell County16Lauderdale County: 15.9 %Lauderdale County15.9McNairy County: 15.9 %McNairy County15.9Carter County: 15.8 %Carter County15.8Wayne County: 15.8 %Wayne County15.8Dickson County: 15.7 %Dickson County15.7Johnson County: 15.7 %Johnson County15.7Rhea County: 15.7 %Rhea County15.7Loudon County: 15.6 %Loudon County15.6McMinn County: 15.6 %McMinn County15.6Benton County: 15.5 %Benton County15.5Chester County: 15.5 %Chester County15.5Houston County: 15.5 %Houston County15.5Humphreys County: 15.5 %Humphreys County15.5
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2018 (%)Change on 2017
1Sevier County21.2+0.6 pts
2Bledsoe County20.7+2.6 pts
3Warren County19.1+0.4 pts
4Grundy County18.6+1.3 pts
5Bedford County18.4+0.1 pts
5DeKalb County18.4+0.8 pts
7Hamblen County18.1+0.4 pts
8Macon County18+1 pts
9Crockett County17.7-0.3 pts
10Monroe County17.3+2.5 pts
11Shelby County16.9+2 pts
12Scott County16.7+2.3 pts
13Bradley County16.60 pts
13Davidson County16.6-0.1 pts
13Jackson County16.6+1.7 pts
13Perry County16.6-1.2 pts
13Polk County16.6+1.6 pts
18Van Buren County16.5+1 pts
19Grainger County16.4+1.3 pts
19Union County16.4+0.5 pts
21Fentress County16.3+1.3 pts
21Hickman County16.3+0.5 pts
21Pickett County16.3+2 pts
24Lewis County16.2+1.1 pts
25Clay County16.1-2 pts
25Morgan County16.1+0.5 pts
27Campbell County16+0.6 pts
28Lauderdale County15.9+0.5 pts
28McNairy County15.9+1.8 pts
30Carter County15.8+1.1 pts
30Wayne County15.8+1.7 pts
32Dickson County15.7+2.1 pts
32Johnson County15.7+0.5 pts
32Rhea County15.7-0.2 pts
35Loudon County15.6+0.2 pts
35McMinn County15.6+0.4 pts
37Benton County15.5+0.5 pts
37Chester County15.5+0.7 pts
37Houston County15.50 pts
37Humphreys County15.5+1.7 pts
41Lawrence County15.4-1.3 pts
42Cumberland County15.3-0.2 pts
42Hardin County15.3+1 pts
44Trousdale County15.2-0.3 pts
44Weakley County15.2+2.8 pts
46Greene County15.1+1.4 pts
46Henderson County15.1+1.3 pts
46Overton County15.1+0.1 pts
46White County15.1+0.9 pts
50Cannon County15+0.5 pts
50Lincoln County15+0.9 pts
52Decatur County14.9+0.2 pts
52Hancock County14.9+0.4 pts
52Hardeman County14.9-0.6 pts
52Stewart County14.9+0.6 pts
56Jefferson County14.8+0.5 pts
57Putnam County14.7-0.5 pts
57Robertson County14.7+2.2 pts
59Cocke County14.6-0.6 pts
59Meigs County14.6-0.6 pts
61Giles County14.5-0.5 pts
61Unicoi County14.5-0.5 pts
63Hamilton County14.4+1.1 pts
63Sullivan County14.4+1.7 pts
65Coffee County14.3+0.5 pts
66Anderson County14.2+1.4 pts
66Carroll County14.2+0.7 pts
66Hawkins County14.2+0.7 pts
66Haywood County14.20 pts
66Sequatchie County14.2+0.3 pts
71Claiborne County14.10 pts
71Lake County14.1-0.4 pts
71Obion County14.1-0.5 pts
71Smith County14.1+1.5 pts
75Henry County14+0.3 pts
75Madison County14+2.1 pts
75Marion County14+0.2 pts
78Cheatham County13.9+1.5 pts
78Franklin County13.9+0.9 pts
80Blount County13.8+1.3 pts
80Gibson County13.8-0.2 pts
82Tipton County13.7+2.4 pts
83Dyer County13.6+1.2 pts
84Marshall County13.5+0.4 pts
85Roane County13.4+0.3 pts
86Washington County12.8-0.7 pts
87Knox County12.4+0.4 pts
88Maury County12.3-0.9 pts
88Rutherford County12.3+0.7 pts
90Sumner County12.2-0.2 pts
91Fayette County11.5-1.7 pts
92Wilson County11.4+0.9 pts
93Montgomery County11-0.3 pts
93Moore County11-0.2 pts
95Williamson County7.3-0.5 pts

Other periods

About this ranking

People aged 18 to 64 without health insurance coverage of any kind, as a percentage of all people aged 18 to 64. United States: Census Bureau Small Area Health Insurance Estimates (SAHIE) for states and counties, all races, both sexes and all income levels.

A model-based single-year estimate that combines the American Community Survey with administrative records and population estimates, so every county gets a figure. Covers states and counties only, because the SAHIE dataset files have no national row. The Census Bureau advises comparing years from 2008 on only; 2013 is the updated release. Working-age adults; the rate for everyone under 65 is uninsured_rate_under_65.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties (Counties in Tennessee by uninsured rate, ages 18 to 64 (US model-based estimate), 2018) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Tennessee by uninsured rate, ages 18 to 64 (US model-based estimate), 2018. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/tennessee-counties?period=2018. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Counties in Tennessee by uninsured rate, ages 18 to 64 (US model-based estimate), 2018. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/tennessee-counties?period=2018.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Tennessee by uninsured rate, ages 18 to 64 (US model-based estimate), 2018 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/tennessee-counties?period=2018 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_tennessee_by_2018,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Tennessee by uninsured rate, ages 18 to 64 (US model-based estimate), 2018}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/tennessee-counties?period=2018. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Tennessee by uninsured rate, ages 18 to 64 (US model-based estimate), 2018
PY  - 2026
DA  - 2026/08/06
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/tennessee-counties?period=2018
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/tennessee-counties?period=2018.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest uninsured rate, ages 18 to 64 (US model-based estimate)?

Sevier County, with 21.2% in 2018, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 18 to 64 (US model-based estimate)?

Williamson County, with 7.3% in 2018.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, ages 18 to 64 (US model-based estimate): other rankings

Counties in Tennessee: more rankings