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 2016, at 20.8%. St. Charles Parish had the lowest, at 10.8%. The median was 15.8% and the figure for Louisiana was 15.3%. Source: the U.S. Census Bureau.

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Highest20.8Terrebonne Parish
Lowest10.8St. Charles Parish
Median15.864 counties
Louisiana15.3History

Map of counties, 2016

Acadia Parish: 17.4 %Allen Parish: 16.2 %Ascension Parish: 10.8 %Assumption Parish: 13.8 %Avoyelles Parish: 16 %Beauregard Parish: 16.7 %Bienville Parish: 14.6 %Bossier Parish: 11.9 %Caddo Parish: 15.8 %Calcasieu Parish: 14.6 %Caldwell Parish: 17.2 %Cameron Parish: 13.7 %Catahoula Parish: 17.6 %Claiborne Parish: 16.5 %Concordia Parish: 16.3 %De Soto Parish: 15.6 %East Baton Rouge Parish: 13.6 %East Carroll Parish: 15.6 %East Feliciana Parish: 12.5 %Evangeline Parish: 16.3 %Franklin Parish: 20.1 %Grant Parish: 15.2 %Iberia Parish: 16.9 %Iberville Parish: 13.6 %Jackson Parish: 16.5 %Jefferson Parish: 17.6 %Jefferson Davis Parish: 16.8 %Lafayette Parish: 15.2 %Lafourche Parish: 19.9 %LaSalle Parish: 15.4 %Lincoln Parish: 17.1 %Livingston Parish: 13.5 %Madison Parish: 15 %Morehouse Parish: 15.1 %Natchitoches Parish: 18.2 %Orleans Parish: 14.3 %Ouachita Parish: 14.8 %Plaquemines Parish: 17.2 %Pointe Coupee Parish: 14.6 %Rapides Parish: 16.3 %Red River Parish: 14.8 %Richland Parish: 16.4 %Sabine Parish: 19.3 %St. Bernard Parish: 15 %St. Charles Parish: 10.8 %St. Helena Parish: 17.4 %St. James Parish: 12.3 %St. John the Baptist Parish: 14.1 %St. Landry Parish: 16.4 %St. Martin Parish: 16 %St. Mary Parish: 17.6 %St. Tammany Parish: 12.9 %Tangipahoa Parish: 15.2 %Tensas Parish: 18.6 %Terrebonne Parish: 20.8 %Union Parish: 16.4 %Vermilion Parish: 17 %Vernon Parish: 14.4 %Washington Parish: 17.3 %Webster Parish: 15.2 %West Baton Rouge Parish: 11.1 %West Carroll Parish: 17.6 %West Feliciana Parish: 11 %Winn Parish: 15.8 %
  • Under 14
  • 14 to 15
  • 15 to 16
  • 16 to 17
  • 17 and over
%, 2016. 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, 2016

Terrebonne Parish: 20.8 %Terrebonne Parish20.8Franklin Parish: 20.1 %Franklin Parish20.1Lafourche Parish: 19.9 %Lafourche Parish19.9Sabine Parish: 19.3 %Sabine Parish19.3Tensas Parish: 18.6 %Tensas Parish18.6Natchitoches Parish: 18.2 %Natchitoches Parish18.2Catahoula Parish: 17.6 %Catahoula Parish17.6Jefferson Parish: 17.6 %Jefferson Parish17.6St. Mary Parish: 17.6 %St. Mary Parish17.6West Carroll Parish: 17.6 %West Carroll Parish17.6Acadia Parish: 17.4 %Acadia Parish17.4St. Helena Parish: 17.4 %St. Helena Parish17.4Washington Parish: 17.3 %Washington Parish17.3Caldwell Parish: 17.2 %Caldwell Parish17.2Plaquemines Parish: 17.2 %Plaquemines Parish17.2Lincoln Parish: 17.1 %Lincoln Parish17.1Vermilion Parish: 17 %Vermilion Parish17Iberia Parish: 16.9 %Iberia Parish16.9Jefferson Davis Parish: 16.8 %Jefferson Davis Parish16.8Beauregard Parish: 16.7 %Beauregard Parish16.7Claiborne Parish: 16.5 %Claiborne Parish16.5Jackson Parish: 16.5 %Jackson Parish16.5Richland Parish: 16.4 %Richland Parish16.4St. Landry Parish: 16.4 %St. Landry Parish16.4Union Parish: 16.4 %Union Parish16.4Concordia Parish: 16.3 %Concordia Parish16.3Evangeline Parish: 16.3 %Evangeline Parish16.3Rapides Parish: 16.3 %Rapides Parish16.3Allen Parish: 16.2 %Allen Parish16.2Avoyelles Parish: 16 %Avoyelles Parish16St. Martin Parish: 16 %St. Martin Parish16Caddo Parish: 15.8 %Caddo Parish15.8Winn Parish: 15.8 %Winn Parish15.8De Soto Parish: 15.6 %De Soto Parish15.6East Carroll Parish: 15.6 %East Carroll Parish15.6LaSalle Parish: 15.4 %LaSalle Parish15.4Grant Parish: 15.2 %Grant Parish15.2Lafayette Parish: 15.2 %Lafayette Parish15.2Tangipahoa Parish: 15.2 %Tangipahoa Parish15.2Webster Parish: 15.2 %Webster Parish15.2Terrebonne Parish: 20.8 %Terrebonne Parish20.8Franklin Parish: 20.1 %Franklin Parish20.1Lafourche Parish: 19.9 %Lafourche Parish19.9Sabine Parish: 19.3 %Sabine Parish19.3Tensas Parish: 18.6 %Tensas Parish18.6Natchitoches Parish: 18.2 %Natchitoches Parish18.2Catahoula Parish: 17.6 %Catahoula Parish17.6Jefferson Parish: 17.6 %Jefferson Parish17.6St. Mary Parish: 17.6 %St. Mary Parish17.6West Carroll Parish: 17.6 %West Carroll Parish17.6Acadia Parish: 17.4 %Acadia Parish17.4St. Helena Parish: 17.4 %St. Helena Parish17.4Washington Parish: 17.3 %Washington Parish17.3Caldwell Parish: 17.2 %Caldwell Parish17.2Plaquemines Parish: 17.2 %Plaquemines Parish17.2Lincoln Parish: 17.1 %Lincoln Parish17.1Vermilion Parish: 17 %Vermilion Parish17Iberia Parish: 16.9 %Iberia Parish16.9Jefferson Davis Parish: 16.8 %Jefferson Davis Parish16.8Beauregard Parish: 16.7 %Beauregard Parish16.7Claiborne Parish: 16.5 %Claiborne Parish16.5Jackson Parish: 16.5 %Jackson Parish16.5Richland Parish: 16.4 %Richland Parish16.4St. Landry Parish: 16.4 %St. Landry Parish16.4Union Parish: 16.4 %Union Parish16.4Concordia Parish: 16.3 %Concordia Parish16.3Evangeline Parish: 16.3 %Evangeline Parish16.3Rapides Parish: 16.3 %Rapides Parish16.3Allen Parish: 16.2 %Allen Parish16.2Avoyelles Parish: 16 %Avoyelles Parish16St. Martin Parish: 16 %St. Martin Parish16Caddo Parish: 15.8 %Caddo Parish15.8Winn Parish: 15.8 %Winn Parish15.8De Soto Parish: 15.6 %De Soto Parish15.6East Carroll Parish: 15.6 %East Carroll Parish15.6LaSalle Parish: 15.4 %LaSalle Parish15.4Grant Parish: 15.2 %Grant Parish15.2Lafayette Parish: 15.2 %Lafayette Parish15.2Tangipahoa Parish: 15.2 %Tangipahoa Parish15.2Webster Parish: 15.2 %Webster Parish15.2
%. 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

RankCounties2016 (%)Change on 2015
1Terrebonne Parish20.8-1.8 pts
2Franklin Parish20.1-2.2 pts
3Lafourche Parish19.9-0.6 pts
4Sabine Parish19.3-4 pts
5Tensas Parish18.6-3.1 pts
6Natchitoches Parish18.2-0.5 pts
7Catahoula Parish17.6-2.6 pts
7Jefferson Parish17.6-1.9 pts
7St. Mary Parish17.6-5.3 pts
7West Carroll Parish17.6-4 pts
11Acadia Parish17.4-2.9 pts
11St. Helena Parish17.4-1.7 pts
13Washington Parish17.3-3.6 pts
14Caldwell Parish17.2-2.5 pts
14Plaquemines Parish17.2-1.8 pts
16Lincoln Parish17.1-2.9 pts
17Vermilion Parish17-2.9 pts
18Iberia Parish16.9-3.8 pts
19Jefferson Davis Parish16.8-1.8 pts
20Beauregard Parish16.7-2.4 pts
21Claiborne Parish16.5-3.5 pts
21Jackson Parish16.5-0.6 pts
23Richland Parish16.4-2.9 pts
23St. Landry Parish16.4-3.6 pts
23Union Parish16.4-3.6 pts
26Concordia Parish16.3-4.5 pts
26Evangeline Parish16.3-4.6 pts
26Rapides Parish16.3-2.4 pts
29Allen Parish16.2-2.4 pts
30Avoyelles Parish16-4.9 pts
30St. Martin Parish16-2.6 pts
32Caddo Parish15.8-1.6 pts
32Winn Parish15.8-3.9 pts
34De Soto Parish15.6-3.6 pts
34East Carroll Parish15.6-3.9 pts
36LaSalle Parish15.4-2.3 pts
37Grant Parish15.2-2 pts
37Lafayette Parish15.2-2.2 pts
37Tangipahoa Parish15.2-4.7 pts
37Webster Parish15.2-3.4 pts
41Morehouse Parish15.1-3.8 pts
42Madison Parish15-5.1 pts
42St. Bernard Parish15-4.9 pts
44Ouachita Parish14.8-2.6 pts
44Red River Parish14.8-4 pts
46Bienville Parish14.6-3.1 pts
46Calcasieu Parish14.6-2.5 pts
46Pointe Coupee Parish14.6-2.9 pts
49Vernon Parish14.4-1.1 pts
50Orleans Parish14.3-2.9 pts
51St. John the Baptist Parish14.1-3 pts
52Assumption Parish13.8-2.8 pts
53Cameron Parish13.7-2.3 pts
54East Baton Rouge Parish13.6-1.4 pts
54Iberville Parish13.6-3 pts
56Livingston Parish13.5-2.2 pts
57St. Tammany Parish12.9-2.6 pts
58East Feliciana Parish12.5-2.4 pts
59St. James Parish12.3-1.7 pts
60Bossier Parish11.9-3.8 pts
61West Baton Rouge Parish11.1-2.9 pts
62West Feliciana Parish11-3.3 pts
63Ascension Parish10.8-1.3 pts
63St. Charles Parish10.8-3.1 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-2016-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), 2016) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-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), 2016. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/louisiana-counties?period=2016. 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), 2016. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/louisiana-counties?period=2016.

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), 2016 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/louisiana-counties?period=2016 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_louisiana_by_2016,
  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), 2016}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/louisiana-counties?period=2016. 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-2016-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), 2016
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-2016-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/louisiana-counties?period=2016
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/louisiana-counties?period=2016.
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-2016-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 20.8% in 2016, 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 10.8% in 2016.

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