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

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

East Carroll Parish had the highest diagnosed diabetes in adults, local model estimate of 64 counties in 2021, at 23.2%. Livingston Parish had the lowest, at 10.7%. The median was 15.1%. Source: the Centers for Disease Control and Prevention.

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Highest23.2East Carroll Parish
Lowest10.7Livingston Parish
Median15.164 counties

Map of counties, 2021

Acadia Parish: 14.4 %Allen Parish: 13.5 %Ascension Parish: 11 %Assumption Parish: 15.9 %Avoyelles Parish: 16.3 %Beauregard Parish: 12.3 %Bienville Parish: 19.9 %Bossier Parish: 12.4 %Caddo Parish: 16.3 %Calcasieu Parish: 12.2 %Caldwell Parish: 15.4 %Cameron Parish: 12.8 %Catahoula Parish: 16 %Claiborne Parish: 19.9 %Concordia Parish: 18.6 %De Soto Parish: 16.1 %East Baton Rouge Parish: 12.4 %East Carroll Parish: 23.2 %East Feliciana Parish: 15 %Evangeline Parish: 16.3 %Franklin Parish: 16.8 %Grant Parish: 12.7 %Iberia Parish: 15.2 %Iberville Parish: 15.2 %Jackson Parish: 15.2 %Jefferson Parish: 13.5 %Jefferson Davis Parish: 13.1 %Lafayette Parish: 11.9 %Lafourche Parish: 13 %LaSalle Parish: 12.2 %Lincoln Parish: 11.9 %Livingston Parish: 10.7 %Madison Parish: 18.7 %Morehouse Parish: 19.1 %Natchitoches Parish: 15.1 %Orleans Parish: 14.9 %Ouachita Parish: 13.7 %Plaquemines Parish: 13.4 %Pointe Coupee Parish: 16.2 %Rapides Parish: 14.8 %Red River Parish: 16.5 %Richland Parish: 17 %Sabine Parish: 16.1 %St. Bernard Parish: 13.6 %St. Charles Parish: 11.6 %St. Helena Parish: 18.3 %St. James Parish: 15.4 %St. John the Baptist Parish: 15.3 %St. Landry Parish: 16.3 %St. Martin Parish: 14.3 %St. Mary Parish: 16.6 %St. Tammany Parish: 11.5 %Tangipahoa Parish: 13.3 %Tensas Parish: 23 %Terrebonne Parish: 13.5 %Union Parish: 16.1 %Vermilion Parish: 13.3 %Vernon Parish: 10.9 %Washington Parish: 17 %Webster Parish: 18.6 %West Baton Rouge Parish: 12.7 %West Carroll Parish: 15.1 %West Feliciana Parish: 13.7 %Winn Parish: 15.3 %
  • Under 12
  • 12 to 14
  • 14 to 15
  • 15 to 16
  • 16 to 17
  • 17 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

East Carroll Parish: 23.2 %East Carroll Parish23.2Tensas Parish: 23 %Tensas Parish23Bienville Parish: 19.9 %Bienville Parish19.9Claiborne Parish: 19.9 %Claiborne Parish19.9Morehouse Parish: 19.1 %Morehouse Parish19.1Madison Parish: 18.7 %Madison Parish18.7Concordia Parish: 18.6 %Concordia Parish18.6Webster Parish: 18.6 %Webster Parish18.6St. Helena Parish: 18.3 %St. Helena Parish18.3Richland Parish: 17 %Richland Parish17Washington Parish: 17 %Washington Parish17Franklin Parish: 16.8 %Franklin Parish16.8St. Mary Parish: 16.6 %St. Mary Parish16.6Red River Parish: 16.5 %Red River Parish16.5Avoyelles Parish: 16.3 %Avoyelles Parish16.3Caddo Parish: 16.3 %Caddo Parish16.3Evangeline Parish: 16.3 %Evangeline Parish16.3St. Landry Parish: 16.3 %St. Landry Parish16.3Pointe Coupee Parish: 16.2 %Pointe Coupee Parish16.2De Soto Parish: 16.1 %De Soto Parish16.1Sabine Parish: 16.1 %Sabine Parish16.1Union Parish: 16.1 %Union Parish16.1Catahoula Parish: 16 %Catahoula Parish16Assumption Parish: 15.9 %Assumption Parish15.9Caldwell Parish: 15.4 %Caldwell Parish15.4St. James Parish: 15.4 %St. James Parish15.4St. John the Baptist Parish: 15.3 %St. John the Baptist Parish15.3Winn Parish: 15.3 %Winn Parish15.3Iberia Parish: 15.2 %Iberia Parish15.2Iberville Parish: 15.2 %Iberville Parish15.2Jackson Parish: 15.2 %Jackson Parish15.2Natchitoches Parish: 15.1 %Natchitoches Parish15.1West Carroll Parish: 15.1 %West Carroll Parish15.1East Feliciana Parish: 15 %East Feliciana Parish15Orleans Parish: 14.9 %Orleans Parish14.9Rapides Parish: 14.8 %Rapides Parish14.8Acadia Parish: 14.4 %Acadia Parish14.4St. Martin Parish: 14.3 %St. Martin Parish14.3Ouachita Parish: 13.7 %Ouachita Parish13.7West Feliciana Parish: 13.7 %West Feliciana Parish13.7East Carroll Parish: 23.2 %East Carroll Parish23.2Tensas Parish: 23 %Tensas Parish23Bienville Parish: 19.9 %Bienville Parish19.9Claiborne Parish: 19.9 %Claiborne Parish19.9Morehouse Parish: 19.1 %Morehouse Parish19.1Madison Parish: 18.7 %Madison Parish18.7Concordia Parish: 18.6 %Concordia Parish18.6Webster Parish: 18.6 %Webster Parish18.6St. Helena Parish: 18.3 %St. Helena Parish18.3Richland Parish: 17 %Richland Parish17Washington Parish: 17 %Washington Parish17Franklin Parish: 16.8 %Franklin Parish16.8St. Mary Parish: 16.6 %St. Mary Parish16.6Red River Parish: 16.5 %Red River Parish16.5Avoyelles Parish: 16.3 %Avoyelles Parish16.3Caddo Parish: 16.3 %Caddo Parish16.3Evangeline Parish: 16.3 %Evangeline Parish16.3St. Landry Parish: 16.3 %St. Landry Parish16.3Pointe Coupee Parish: 16.2 %Pointe Coupee Parish16.2De Soto Parish: 16.1 %De Soto Parish16.1Sabine Parish: 16.1 %Sabine Parish16.1Union Parish: 16.1 %Union Parish16.1Catahoula Parish: 16 %Catahoula Parish16Assumption Parish: 15.9 %Assumption Parish15.9Caldwell Parish: 15.4 %Caldwell Parish15.4St. James Parish: 15.4 %St. James Parish15.4St. John the Baptist Parish: 15.3 %St. John the Baptist Parish15.3Winn Parish: 15.3 %Winn Parish15.3Iberia Parish: 15.2 %Iberia Parish15.2Iberville Parish: 15.2 %Iberville Parish15.2Jackson Parish: 15.2 %Jackson Parish15.2Natchitoches Parish: 15.1 %Natchitoches Parish15.1West Carroll Parish: 15.1 %West Carroll Parish15.1East Feliciana Parish: 15 %East Feliciana Parish15Orleans Parish: 14.9 %Orleans Parish14.9Rapides Parish: 14.8 %Rapides Parish14.8Acadia Parish: 14.4 %Acadia Parish14.4St. Martin Parish: 14.3 %St. Martin Parish14.3Ouachita Parish: 13.7 %Ouachita Parish13.7West Feliciana Parish: 13.7 %West Feliciana Parish13.7
%. 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 (%)
1East Carroll Parish23.2
2Tensas Parish23
3Bienville Parish19.9
3Claiborne Parish19.9
5Morehouse Parish19.1
6Madison Parish18.7
7Concordia Parish18.6
7Webster Parish18.6
9St. Helena Parish18.3
10Richland Parish17
10Washington Parish17
12Franklin Parish16.8
13St. Mary Parish16.6
14Red River Parish16.5
15Avoyelles Parish16.3
15Caddo Parish16.3
15Evangeline Parish16.3
15St. Landry Parish16.3
19Pointe Coupee Parish16.2
20De Soto Parish16.1
20Sabine Parish16.1
20Union Parish16.1
23Catahoula Parish16
24Assumption Parish15.9
25Caldwell Parish15.4
25St. James Parish15.4
27St. John the Baptist Parish15.3
27Winn Parish15.3
29Iberia Parish15.2
29Iberville Parish15.2
29Jackson Parish15.2
32Natchitoches Parish15.1
32West Carroll Parish15.1
34East Feliciana Parish15
35Orleans Parish14.9
36Rapides Parish14.8
37Acadia Parish14.4
38St. Martin Parish14.3
39Ouachita Parish13.7
39West Feliciana Parish13.7
41St. Bernard Parish13.6
42Allen Parish13.5
42Jefferson Parish13.5
42Terrebonne Parish13.5
45Plaquemines Parish13.4
46Tangipahoa Parish13.3
46Vermilion Parish13.3
48Jefferson Davis Parish13.1
49Lafourche Parish13
50Cameron Parish12.8
51Grant Parish12.7
51West Baton Rouge Parish12.7
53Bossier Parish12.4
53East Baton Rouge Parish12.4
55Beauregard Parish12.3
56Calcasieu Parish12.2
56LaSalle Parish12.2
58Lafayette Parish11.9
58Lincoln Parish11.9
60St. Charles Parish11.6
61St. Tammany Parish11.5
62Ascension Parish11
63Vernon Parish10.9
64Livingston Parish10.7

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 Louisiana 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 Louisiana 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/louisiana-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 Louisiana 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/louisiana-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 Louisiana 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/louisiana-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{centers_counties_in_louisiana_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 Louisiana 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/louisiana-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 Louisiana 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/louisiana-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/adult-diabetes-rate-county-estimate/louisiana-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?

East Carroll Parish, with 23.2% in 2021, according to the Centers for Disease Control and Prevention.

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

Livingston Parish, with 10.7% 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 Louisiana: more rankings