Data / Rankings / Diagnosed diabetes in adults, local model estimate / Counties in Tennessee

Counties in Tennessee by diagnosed diabetes in adults, local model estimate

Haywood County had the highest diagnosed diabetes in adults, local model estimate of 95 counties in 2021, at 19.6%. Williamson County had the lowest, at 9%. The median was 14.4%. Source: the Centers for Disease Control and Prevention.

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Highest19.6Haywood County
Lowest9Williamson County
Median14.495 counties

Map of counties, 2021

Anderson County: 13.6 %Bedford County: 13.2 %Benton County: 16.2 %Bledsoe County: 14.8 %Blount County: 13 %Bradley County: 12.9 %Campbell County: 15.2 %Cannon County: 13.5 %Carroll County: 14.5 %Carter County: 15.4 %Cheatham County: 12 %Chester County: 13.9 %Claiborne County: 14.3 %Clay County: 17.6 %Cocke County: 16.2 %Coffee County: 13.1 %Crockett County: 15.3 %Cumberland County: 16.7 %Davidson County: 11 %Decatur County: 16 %DeKalb County: 14.6 %Dickson County: 12.1 %Dyer County: 14 %Fayette County: 15.3 %Fentress County: 16.3 %Franklin County: 13.6 %Gibson County: 14.9 %Giles County: 14.5 %Grainger County: 15.2 %Greene County: 14.7 %Grundy County: 15 %Hamblen County: 14.7 %Hamilton County: 12.8 %Hancock County: 18.1 %Hardeman County: 17 %Hardin County: 15.6 %Hawkins County: 15.2 %Haywood County: 19.6 %Henderson County: 14.8 %Henry County: 15.9 %Hickman County: 13.3 %Houston County: 13.8 %Humphreys County: 13.6 %Jackson County: 15.5 %Jefferson County: 13.5 %Johnson County: 16.1 %Knox County: 11.7 %Lake County: 16 %Lauderdale County: 16.3 %Lawrence County: 14.1 %Lewis County: 15.6 %Lincoln County: 13.7 %Loudon County: 14 %McMinn County: 14.1 %McNairy County: 15.4 %Macon County: 14 %Madison County: 15.1 %Marion County: 14.6 %Marshall County: 13.2 %Maury County: 11.8 %Meigs County: 14.3 %Monroe County: 15.3 %Montgomery County: 10.3 %Moore County: 14.2 %Morgan County: 14.5 %Obion County: 15.4 %Overton County: 14.6 %Perry County: 15.6 %Pickett County: 17.4 %Polk County: 14.2 %Putnam County: 12 %Rhea County: 14.1 %Roane County: 13.9 %Robertson County: 12.3 %Rutherford County: 10.1 %Scott County: 15.2 %Sequatchie County: 16 %Sevier County: 13.8 %Shelby County: 15.1 %Smith County: 12.8 %Stewart County: 13.5 %Sullivan County: 14.1 %Sumner County: 11.2 %Tipton County: 13.1 %Trousdale County: 10.7 %Unicoi County: 15.3 %Union County: 14.4 %Van Buren County: 16.9 %Warren County: 14.4 %Washington County: 12.3 %Wayne County: 14.6 %Weakley County: 13.4 %White County: 14.6 %Williamson County: 9 %Wilson County: 11 %
  • Under 13
  • 13 to 14
  • 14 to 15
  • 15 to 16
  • 16 and over
%, 2021. Source: CDC, PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

Haywood County: 19.6 %Haywood County19.6Hancock County: 18.1 %Hancock County18.1Clay County: 17.6 %Clay County17.6Pickett County: 17.4 %Pickett County17.4Hardeman County: 17 %Hardeman County17Van Buren County: 16.9 %Van Buren County16.9Cumberland County: 16.7 %Cumberland County16.7Fentress County: 16.3 %Fentress County16.3Lauderdale County: 16.3 %Lauderdale County16.3Benton County: 16.2 %Benton County16.2Cocke County: 16.2 %Cocke County16.2Johnson County: 16.1 %Johnson County16.1Decatur County: 16 %Decatur County16Lake County: 16 %Lake County16Sequatchie County: 16 %Sequatchie County16Henry County: 15.9 %Henry County15.9Hardin County: 15.6 %Hardin County15.6Lewis County: 15.6 %Lewis County15.6Perry County: 15.6 %Perry County15.6Jackson County: 15.5 %Jackson County15.5Carter County: 15.4 %Carter County15.4McNairy County: 15.4 %McNairy County15.4Obion County: 15.4 %Obion County15.4Crockett County: 15.3 %Crockett County15.3Fayette County: 15.3 %Fayette County15.3Monroe County: 15.3 %Monroe County15.3Unicoi County: 15.3 %Unicoi County15.3Campbell County: 15.2 %Campbell County15.2Grainger County: 15.2 %Grainger County15.2Hawkins County: 15.2 %Hawkins County15.2Scott County: 15.2 %Scott County15.2Madison County: 15.1 %Madison County15.1Shelby County: 15.1 %Shelby County15.1Grundy County: 15 %Grundy County15Gibson County: 14.9 %Gibson County14.9Bledsoe County: 14.8 %Bledsoe County14.8Henderson County: 14.8 %Henderson County14.8Greene County: 14.7 %Greene County14.7Hamblen County: 14.7 %Hamblen County14.7DeKalb County: 14.6 %DeKalb County14.6Haywood County: 19.6 %Haywood County19.6Hancock County: 18.1 %Hancock County18.1Clay County: 17.6 %Clay County17.6Pickett County: 17.4 %Pickett County17.4Hardeman County: 17 %Hardeman County17Van Buren County: 16.9 %Van Buren County16.9Cumberland County: 16.7 %Cumberland County16.7Fentress County: 16.3 %Fentress County16.3Lauderdale County: 16.3 %Lauderdale County16.3Benton County: 16.2 %Benton County16.2Cocke County: 16.2 %Cocke County16.2Johnson County: 16.1 %Johnson County16.1Decatur County: 16 %Decatur County16Lake County: 16 %Lake County16Sequatchie County: 16 %Sequatchie County16Henry County: 15.9 %Henry County15.9Hardin County: 15.6 %Hardin County15.6Lewis County: 15.6 %Lewis County15.6Perry County: 15.6 %Perry County15.6Jackson County: 15.5 %Jackson County15.5Carter County: 15.4 %Carter County15.4McNairy County: 15.4 %McNairy County15.4Obion County: 15.4 %Obion County15.4Crockett County: 15.3 %Crockett County15.3Fayette County: 15.3 %Fayette County15.3Monroe County: 15.3 %Monroe County15.3Unicoi County: 15.3 %Unicoi County15.3Campbell County: 15.2 %Campbell County15.2Grainger County: 15.2 %Grainger County15.2Hawkins County: 15.2 %Hawkins County15.2Scott County: 15.2 %Scott County15.2Madison County: 15.1 %Madison County15.1Shelby County: 15.1 %Shelby County15.1Grundy County: 15 %Grundy County15Gibson County: 14.9 %Gibson County14.9Bledsoe County: 14.8 %Bledsoe County14.8Henderson County: 14.8 %Henderson County14.8Greene County: 14.7 %Greene County14.7Hamblen County: 14.7 %Hamblen County14.7DeKalb County: 14.6 %DeKalb County14.6
%. Source: CDC, PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Haywood County19.6
2Hancock County18.1
3Clay County17.6
4Pickett County17.4
5Hardeman County17
6Van Buren County16.9
7Cumberland County16.7
8Fentress County16.3
8Lauderdale County16.3
10Benton County16.2
10Cocke County16.2
12Johnson County16.1
13Decatur County16
13Lake County16
13Sequatchie County16
16Henry County15.9
17Hardin County15.6
17Lewis County15.6
17Perry County15.6
20Jackson County15.5
21Carter County15.4
21McNairy County15.4
21Obion County15.4
24Crockett County15.3
24Fayette County15.3
24Monroe County15.3
24Unicoi County15.3
28Campbell County15.2
28Grainger County15.2
28Hawkins County15.2
28Scott County15.2
32Madison County15.1
32Shelby County15.1
34Grundy County15
35Gibson County14.9
36Bledsoe County14.8
36Henderson County14.8
38Greene County14.7
38Hamblen County14.7
40DeKalb County14.6
40Marion County14.6
40Overton County14.6
40Wayne County14.6
40White County14.6
45Carroll County14.5
45Giles County14.5
45Morgan County14.5
48Union County14.4
48Warren County14.4
50Claiborne County14.3
50Meigs County14.3
52Moore County14.2
52Polk County14.2
54Lawrence County14.1
54McMinn County14.1
54Rhea County14.1
54Sullivan County14.1
58Dyer County14
58Loudon County14
58Macon County14
61Chester County13.9
61Roane County13.9
63Houston County13.8
63Sevier County13.8
65Lincoln County13.7
66Anderson County13.6
66Franklin County13.6
66Humphreys County13.6
69Cannon County13.5
69Jefferson County13.5
69Stewart County13.5
72Weakley County13.4
73Hickman County13.3
74Bedford County13.2
74Marshall County13.2
76Coffee County13.1
76Tipton County13.1
78Blount County13
79Bradley County12.9
80Hamilton County12.8
80Smith County12.8
82Robertson County12.3
82Washington County12.3
84Dickson County12.1
85Cheatham County12
85Putnam County12
87Maury County11.8
88Knox County11.7
89Sumner County11.2
90Davidson County11
90Wilson County11
92Trousdale County10.7
93Montgomery County10.3
94Rutherford County10.1
95Williamson County9

Other periods

About this ranking

Percentage of adults who report being told by a doctor or other health professional that they have diabetes, other than diabetes only during pregnancy. Model-based estimate for adults aged 18 and over from CDC PLACES. Crude prevalence, not age-adjusted.

US counties and cities (incorporated places of 10,000 or more). CDC PLACES combines Behavioral Risk Factor Surveillance System (BRFSS) answers with local population data through multilevel regression and poststratification, so a county or city value is a model estimate, not a survey count. The year is the BRFSS survey year, not the release year. CDC says the method does not support tracking change in a place over time, and each annual release can change the model, so values for different years are not strictly comparable. A state is missing in a year when its BRFSS data did not meet standards (Kentucky and Pennsylvania in 2023, Florida in 2021). Connecticut counties appear as its nine planning regions from 2022; its eight former counties are not served. City values for 2021 come from the 2023 release, built on 2010 Census place boundaries; later years use 2020 boundaries.

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

Centers for Disease Control and Prevention (CDC). PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence. https://www.cdc.gov/places/. Retrieved 2026-10-12. These data are available free from CDC. Use does not imply endorsement by CDC, ATSDR, HHS or the United States Government.

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

Centers for Disease Control and Prevention. (2025). PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence (Counties in Tennessee by diagnosed diabetes in adults, local model estimate, 2021) [Data set]. Retrieved October 12, 2026, from https://www.cdc.gov/places/

MLA 9

PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence, Counties in Tennessee by diagnosed diabetes in adults, local model estimate, 2021. Centers for Disease Control and Prevention, 4 Dec. 2025, https://www.cdc.gov/places/. Invokely, https://invokely.ai/rankings/adult-diabetes-rate-county-estimate/tennessee-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

Centers for Disease Control and Prevention. 2025. PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence. Counties in Tennessee by diagnosed diabetes in adults, local model estimate, 2021. Dataset. Accessed October 12, 2026. https://www.cdc.gov/places/. Also distributed by Invokely, https://invokely.ai/rankings/adult-diabetes-rate-county-estimate/tennessee-counties?period=2021.

Harvard

Centers for Disease Control and Prevention (2025) PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence, Counties in Tennessee by diagnosed diabetes in adults, local model estimate, 2021 [Dataset]. Available at: https://www.cdc.gov/places/, via Invokely: https://invokely.ai/rankings/adult-diabetes-rate-county-estimate/tennessee-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{centers_counties_in_tennessee_by_2021,
  author = {{Centers for Disease Control and Prevention}},
  title = {{PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence: Counties in Tennessee by diagnosed diabetes in adults, local model estimate, 2021}},
  year = {2025},
  howpublished = {Data set},
  url = {https://www.cdc.gov/places/},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/adult-diabetes-rate-county-estimate/tennessee-counties?period=2021. Publisher attribution: Centers for Disease Control and Prevention (CDC). PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence. https://www.cdc.gov/places/. Retrieved 2026-10-12. These data are available free from CDC. Use does not imply endorsement by CDC, ATSDR, HHS or the United States Government.},
}
RIS
TY  - DATA
AU  - Centers for Disease Control and Prevention
TI  - PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence: Counties in Tennessee by diagnosed diabetes in adults, local model estimate, 2021
PY  - 2025
DA  - 2025/12/04
PB  - Centers for Disease Control and Prevention
DB  - Invokely
UR  - https://www.cdc.gov/places/
L2  - https://invokely.ai/rankings/adult-diabetes-rate-county-estimate/tennessee-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/adult-diabetes-rate-county-estimate/tennessee-counties?period=2021.
N1  - Publisher attribution: Centers for Disease Control and Prevention (CDC). PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence. https://www.cdc.gov/places/. Retrieved 2026-10-12. These data are available free from CDC. Use does not imply endorsement by CDC, ATSDR, HHS or the United States Government.
ER  -
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Questions

Which county has the highest diagnosed diabetes in adults, local model estimate?

Haywood County, with 19.6% in 2021, according to the Centers for Disease Control and Prevention.

Which county has the lowest diagnosed diabetes in adults, local model estimate?

Williamson County, with 9% in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: Centers for Disease Control and Prevention, PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence. Retrieved 2026-10-12.

Diagnosed diabetes in adults, local model estimate: other rankings

Counties in Tennessee: more rankings