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

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

Terrebonne Parish had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 64 counties in 2021, at 13.9%. St. Charles Parish had the lowest, at 7.2%. The median was 11.5% and the figure for Louisiana was 11.2%. Source: the U.S. Census Bureau.

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Highest13.9Terrebonne Parish
Lowest7.2St. Charles Parish
Median11.564 counties
Louisiana11.2History

Map of counties, 2021

Acadia Parish: 12.3 %Allen Parish: 11.1 %Ascension Parish: 8.6 %Assumption Parish: 12.8 %Avoyelles Parish: 12.7 %Beauregard Parish: 11.5 %Bienville Parish: 11.3 %Bossier Parish: 11 %Caddo Parish: 11.1 %Calcasieu Parish: 10.7 %Caldwell Parish: 12.9 %Cameron Parish: 9.6 %Catahoula Parish: 13.6 %Claiborne Parish: 12.1 %Concordia Parish: 11.8 %De Soto Parish: 11.3 %East Baton Rouge Parish: 10.7 %East Carroll Parish: 11.5 %East Feliciana Parish: 9.6 %Evangeline Parish: 13.3 %Franklin Parish: 13.8 %Grant Parish: 11.6 %Iberia Parish: 12.9 %Iberville Parish: 10.6 %Jackson Parish: 11.4 %Jefferson Parish: 13.1 %Jefferson Davis Parish: 12.4 %Lafayette Parish: 11.1 %Lafourche Parish: 11.2 %LaSalle Parish: 11.8 %Lincoln Parish: 11.4 %Livingston Parish: 10.4 %Madison Parish: 11.6 %Morehouse Parish: 11.8 %Natchitoches Parish: 10.7 %Orleans Parish: 10.2 %Ouachita Parish: 10.5 %Plaquemines Parish: 11.7 %Pointe Coupee Parish: 11.3 %Rapides Parish: 11.9 %Red River Parish: 11.5 %Richland Parish: 12.6 %Sabine Parish: 13.6 %St. Bernard Parish: 12.1 %St. Charles Parish: 7.2 %St. Helena Parish: 13.3 %St. James Parish: 8.1 %St. John the Baptist Parish: 9.4 %St. Landry Parish: 12.9 %St. Martin Parish: 11.2 %St. Mary Parish: 12.9 %St. Tammany Parish: 9.8 %Tangipahoa Parish: 12.1 %Tensas Parish: 13.3 %Terrebonne Parish: 13.9 %Union Parish: 11.4 %Vermilion Parish: 12.2 %Vernon Parish: 10.8 %Washington Parish: 11.6 %Webster Parish: 10.2 %West Baton Rouge Parish: 9.5 %West Carroll Parish: 13.3 %West Feliciana Parish: 8.5 %Winn Parish: 11 %
  • Under 10
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  • 13 and over
%, 2021. 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, 2021

Terrebonne Parish: 13.9 %Terrebonne Parish13.9Franklin Parish: 13.8 %Franklin Parish13.8Catahoula Parish: 13.6 %Catahoula Parish13.6Sabine Parish: 13.6 %Sabine Parish13.6Evangeline Parish: 13.3 %Evangeline Parish13.3St. Helena Parish: 13.3 %St. Helena Parish13.3Tensas Parish: 13.3 %Tensas Parish13.3West Carroll Parish: 13.3 %West Carroll Parish13.3Jefferson Parish: 13.1 %Jefferson Parish13.1Caldwell Parish: 12.9 %Caldwell Parish12.9Iberia Parish: 12.9 %Iberia Parish12.9St. Landry Parish: 12.9 %St. Landry Parish12.9St. Mary Parish: 12.9 %St. Mary Parish12.9Assumption Parish: 12.8 %Assumption Parish12.8Avoyelles Parish: 12.7 %Avoyelles Parish12.7Richland Parish: 12.6 %Richland Parish12.6Jefferson Davis Parish: 12.4 %Jefferson Davis Parish12.4Acadia Parish: 12.3 %Acadia Parish12.3Vermilion Parish: 12.2 %Vermilion Parish12.2Claiborne Parish: 12.1 %Claiborne Parish12.1St. Bernard Parish: 12.1 %St. Bernard Parish12.1Tangipahoa Parish: 12.1 %Tangipahoa Parish12.1Rapides Parish: 11.9 %Rapides Parish11.9Concordia Parish: 11.8 %Concordia Parish11.8LaSalle Parish: 11.8 %LaSalle Parish11.8Morehouse Parish: 11.8 %Morehouse Parish11.8Plaquemines Parish: 11.7 %Plaquemines Parish11.7Grant Parish: 11.6 %Grant Parish11.6Madison Parish: 11.6 %Madison Parish11.6Washington Parish: 11.6 %Washington Parish11.6Beauregard Parish: 11.5 %Beauregard Parish11.5East Carroll Parish: 11.5 %East Carroll Parish11.5Red River Parish: 11.5 %Red River Parish11.5Jackson Parish: 11.4 %Jackson Parish11.4Lincoln Parish: 11.4 %Lincoln Parish11.4Union Parish: 11.4 %Union Parish11.4Bienville Parish: 11.3 %Bienville Parish11.3De Soto Parish: 11.3 %De Soto Parish11.3Pointe Coupee Parish: 11.3 %Pointe Coupee Parish11.3Lafourche Parish: 11.2 %Lafourche Parish11.2Terrebonne Parish: 13.9 %Terrebonne Parish13.9Franklin Parish: 13.8 %Franklin Parish13.8Catahoula Parish: 13.6 %Catahoula Parish13.6Sabine Parish: 13.6 %Sabine Parish13.6Evangeline Parish: 13.3 %Evangeline Parish13.3St. Helena Parish: 13.3 %St. Helena Parish13.3Tensas Parish: 13.3 %Tensas Parish13.3West Carroll Parish: 13.3 %West Carroll Parish13.3Jefferson Parish: 13.1 %Jefferson Parish13.1Caldwell Parish: 12.9 %Caldwell Parish12.9Iberia Parish: 12.9 %Iberia Parish12.9St. Landry Parish: 12.9 %St. Landry Parish12.9St. Mary Parish: 12.9 %St. Mary Parish12.9Assumption Parish: 12.8 %Assumption Parish12.8Avoyelles Parish: 12.7 %Avoyelles Parish12.7Richland Parish: 12.6 %Richland Parish12.6Jefferson Davis Parish: 12.4 %Jefferson Davis Parish12.4Acadia Parish: 12.3 %Acadia Parish12.3Vermilion Parish: 12.2 %Vermilion Parish12.2Claiborne Parish: 12.1 %Claiborne Parish12.1St. Bernard Parish: 12.1 %St. Bernard Parish12.1Tangipahoa Parish: 12.1 %Tangipahoa Parish12.1Rapides Parish: 11.9 %Rapides Parish11.9Concordia Parish: 11.8 %Concordia Parish11.8LaSalle Parish: 11.8 %LaSalle Parish11.8Morehouse Parish: 11.8 %Morehouse Parish11.8Plaquemines Parish: 11.7 %Plaquemines Parish11.7Grant Parish: 11.6 %Grant Parish11.6Madison Parish: 11.6 %Madison Parish11.6Washington Parish: 11.6 %Washington Parish11.6Beauregard Parish: 11.5 %Beauregard Parish11.5East Carroll Parish: 11.5 %East Carroll Parish11.5Red River Parish: 11.5 %Red River Parish11.5Jackson Parish: 11.4 %Jackson Parish11.4Lincoln Parish: 11.4 %Lincoln Parish11.4Union Parish: 11.4 %Union Parish11.4Bienville Parish: 11.3 %Bienville Parish11.3De Soto Parish: 11.3 %De Soto Parish11.3Pointe Coupee Parish: 11.3 %Pointe Coupee Parish11.3Lafourche Parish: 11.2 %Lafourche Parish11.2
%. 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

RankCounties2021 (%)Change on 2020
1Terrebonne Parish13.9-2 pts
2Franklin Parish13.80 pts
3Catahoula Parish13.6+1.4 pts
3Sabine Parish13.6-0.9 pts
5Evangeline Parish13.30 pts
5St. Helena Parish13.3+1.3 pts
5Tensas Parish13.3-0.4 pts
5West Carroll Parish13.3+0.2 pts
9Jefferson Parish13.1-0.7 pts
10Caldwell Parish12.9-1.9 pts
10Iberia Parish12.9+0.3 pts
10St. Landry Parish12.9-0.2 pts
10St. Mary Parish12.9+0.2 pts
14Assumption Parish12.8+1.3 pts
15Avoyelles Parish12.7-0.3 pts
16Richland Parish12.6-1.3 pts
17Jefferson Davis Parish12.4-0.4 pts
18Acadia Parish12.3-0.2 pts
19Vermilion Parish12.2-1.6 pts
20Claiborne Parish12.1-0.3 pts
20St. Bernard Parish12.1-0.1 pts
20Tangipahoa Parish12.1+0.8 pts
23Rapides Parish11.9-0.7 pts
24Concordia Parish11.8-0.2 pts
24LaSalle Parish11.8-2.3 pts
24Morehouse Parish11.8+0.7 pts
27Plaquemines Parish11.7-3.1 pts
28Grant Parish11.6+0.4 pts
28Madison Parish11.60 pts
28Washington Parish11.6+0.3 pts
31Beauregard Parish11.5-0.7 pts
31East Carroll Parish11.5+0.5 pts
31Red River Parish11.5-1.3 pts
34Jackson Parish11.4-1.6 pts
34Lincoln Parish11.4-1.3 pts
34Union Parish11.4-1 pts
37Bienville Parish11.3+0.1 pts
37De Soto Parish11.3-1.1 pts
37Pointe Coupee Parish11.3-0.1 pts
40Lafourche Parish11.2-1.9 pts
40St. Martin Parish11.2-0.4 pts
42Allen Parish11.1-0.1 pts
42Caddo Parish11.1-0.7 pts
42Lafayette Parish11.1-0.7 pts
45Bossier Parish110 pts
45Winn Parish11-0.8 pts
47Vernon Parish10.8-2.5 pts
48Calcasieu Parish10.7+0.7 pts
48East Baton Rouge Parish10.7-0.8 pts
48Natchitoches Parish10.7-1.5 pts
51Iberville Parish10.6+0.6 pts
52Ouachita Parish10.5-0.8 pts
53Livingston Parish10.4-0.3 pts
54Orleans Parish10.2-1.5 pts
54Webster Parish10.2-1.4 pts
56St. Tammany Parish9.8-0.3 pts
57Cameron Parish9.6-1.6 pts
57East Feliciana Parish9.6+0.3 pts
59West Baton Rouge Parish9.5+0.2 pts
60St. John the Baptist Parish9.4-1 pts
61Ascension Parish8.6+0.3 pts
62West Feliciana Parish8.5+2.4 pts
63St. James Parish8.1-0.3 pts
64St. Charles Parish7.2-0.9 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-2021-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 Louisiana by uninsured rate, ages 18 to 64 (US model-based estimate), 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-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 Louisiana by uninsured rate, ages 18 to 64 (US model-based estimate), 2021. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/louisiana-counties?period=2021. 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 Louisiana by uninsured rate, ages 18 to 64 (US model-based estimate), 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/louisiana-counties?period=2021.

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 Louisiana by uninsured rate, ages 18 to 64 (US model-based estimate), 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/louisiana-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_louisiana_by_2021,
  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 Louisiana by uninsured rate, ages 18 to 64 (US model-based estimate), 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/louisiana-counties?period=2021. 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-2021-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 Louisiana by uninsured rate, ages 18 to 64 (US model-based estimate), 2021
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-2021-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/louisiana-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/louisiana-counties?period=2021.
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-2021-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)?

Terrebonne Parish, with 13.9% in 2021, according to the U.S. Census Bureau.

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

St. Charles Parish, with 7.2% in 2021.

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 Louisiana: more rankings