Data / Rankings / High school graduate or higher, population 25 and over / Counties in Louisiana

Counties in Louisiana by high school graduate or higher, population 25 and over

St. Tammany Parish had the highest high school graduate or higher, population 25 and over of 64 counties in 2021, at 91.3%. East Carroll Parish had the lowest, at 65.6%. The median was 82.5% and the figure for Louisiana was 86.2%. Source: the U.S. Census Bureau.

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Highest91.3St. Tammany Parish
Lowest65.6East Carroll Parish
Median82.564 counties
Louisiana86.2History

Map of counties, 2021

Acadia Parish: 80.3 %Allen Parish: 79.8 %Ascension Parish: 88.7 %Assumption Parish: 76.8 %Avoyelles Parish: 76.6 %Beauregard Parish: 87.5 %Bienville Parish: 86.5 %Bossier Parish: 90.4 %Caddo Parish: 86.6 %Calcasieu Parish: 88.2 %Caldwell Parish: 76.8 %Cameron Parish: 86.1 %Catahoula Parish: 72.8 %Claiborne Parish: 77.9 %Concordia Parish: 81.2 %De Soto Parish: 82.5 %East Baton Rouge Parish: 90.4 %East Carroll Parish: 65.6 %East Feliciana Parish: 81.3 %Evangeline Parish: 74.9 %Franklin Parish: 76.9 %Grant Parish: 81.2 %Iberia Parish: 83.5 %Iberville Parish: 79.8 %Jackson Parish: 83.3 %Jefferson Parish: 86.8 %Jefferson Davis Parish: 82.9 %Lafayette Parish: 89.3 %Lafourche Parish: 80.9 %LaSalle Parish: 81.1 %Lincoln Parish: 88.9 %Livingston Parish: 87.4 %Madison Parish: 75.4 %Morehouse Parish: 80 %Natchitoches Parish: 87 %Orleans Parish: 88.2 %Ouachita Parish: 88.2 %Plaquemines Parish: 84.9 %Pointe Coupee Parish: 81.1 %Rapides Parish: 87 %Red River Parish: 81.5 %Richland Parish: 78.6 %Sabine Parish: 86.1 %St. Bernard Parish: 81.5 %St. Charles Parish: 90.7 %St. Helena Parish: 77.4 %St. James Parish: 86 %St. John the Baptist Parish: 86.1 %St. Landry Parish: 78.2 %St. Martin Parish: 83.8 %St. Mary Parish: 81.1 %St. Tammany Parish: 91.3 %Tangipahoa Parish: 82.4 %Tensas Parish: 77.8 %Terrebonne Parish: 81.1 %Union Parish: 86.5 %Vermilion Parish: 83.2 %Vernon Parish: 88 %Washington Parish: 81.6 %Webster Parish: 85.5 %West Baton Rouge Parish: 87.2 %West Carroll Parish: 80.8 %West Feliciana Parish: 82.6 %Winn Parish: 81.8 %
  • Under 78
  • 78 to 81
  • 81 to 83
  • 83 to 86
  • 86 to 88
  • 88 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

St. Tammany Parish: 91.3 %St. Tammany Parish91.3St. Charles Parish: 90.7 %St. Charles Parish90.7East Baton Rouge Parish: 90.4 %East Baton Rouge Parish90.4Bossier Parish: 90.4 %Bossier Parish90.4Lafayette Parish: 89.3 %Lafayette Parish89.3Lincoln Parish: 88.9 %Lincoln Parish88.9Ascension Parish: 88.7 %Ascension Parish88.7Orleans Parish: 88.2 %Orleans Parish88.2Ouachita Parish: 88.2 %Ouachita Parish88.2Calcasieu Parish: 88.2 %Calcasieu Parish88.2Vernon Parish: 88 %Vernon Parish88Beauregard Parish: 87.5 %Beauregard Parish87.5Livingston Parish: 87.4 %Livingston Parish87.4West Baton Rouge Parish: 87.2 %West Baton Rouge Parish87.2Rapides Parish: 87 %Rapides Parish87Natchitoches Parish: 87 %Natchitoches Parish87Jefferson Parish: 86.8 %Jefferson Parish86.8Caddo Parish: 86.6 %Caddo Parish86.6Union Parish: 86.5 %Union Parish86.5Bienville Parish: 86.5 %Bienville Parish86.5St. John the Baptist Parish: 86.1 %St. John the Baptist Parish86.1Cameron Parish: 86.1 %Cameron Parish86.1Sabine Parish: 86.1 %Sabine Parish86.1St. James Parish: 86 %St. James Parish86Webster Parish: 85.5 %Webster Parish85.5Plaquemines Parish: 84.9 %Plaquemines Parish84.9St. Martin Parish: 83.8 %St. Martin Parish83.8Iberia Parish: 83.5 %Iberia Parish83.5Jackson Parish: 83.3 %Jackson Parish83.3Vermilion Parish: 83.2 %Vermilion Parish83.2Jefferson Davis Parish: 82.9 %Jefferson Davis Parish82.9West Feliciana Parish: 82.6 %West Feliciana Parish82.6De Soto Parish: 82.5 %De Soto Parish82.5Tangipahoa Parish: 82.4 %Tangipahoa Parish82.4Winn Parish: 81.8 %Winn Parish81.8Washington Parish: 81.6 %Washington Parish81.6Red River Parish: 81.5 %Red River Parish81.5St. Bernard Parish: 81.5 %St. Bernard Parish81.5East Feliciana Parish: 81.3 %East Feliciana Parish81.3Grant Parish: 81.2 %Grant Parish81.2St. Tammany Parish: 91.3 %St. Tammany Parish91.3St. Charles Parish: 90.7 %St. Charles Parish90.7East Baton Rouge Parish: 90.4 %East Baton Rouge Parish90.4Bossier Parish: 90.4 %Bossier Parish90.4Lafayette Parish: 89.3 %Lafayette Parish89.3Lincoln Parish: 88.9 %Lincoln Parish88.9Ascension Parish: 88.7 %Ascension Parish88.7Orleans Parish: 88.2 %Orleans Parish88.2Ouachita Parish: 88.2 %Ouachita Parish88.2Calcasieu Parish: 88.2 %Calcasieu Parish88.2Vernon Parish: 88 %Vernon Parish88Beauregard Parish: 87.5 %Beauregard Parish87.5Livingston Parish: 87.4 %Livingston Parish87.4West Baton Rouge Parish: 87.2 %West Baton Rouge Parish87.2Rapides Parish: 87 %Rapides Parish87Natchitoches Parish: 87 %Natchitoches Parish87Jefferson Parish: 86.8 %Jefferson Parish86.8Caddo Parish: 86.6 %Caddo Parish86.6Union Parish: 86.5 %Union Parish86.5Bienville Parish: 86.5 %Bienville Parish86.5St. John the Baptist Parish: 86.1 %St. John the Baptist Parish86.1Cameron Parish: 86.1 %Cameron Parish86.1Sabine Parish: 86.1 %Sabine Parish86.1St. James Parish: 86 %St. James Parish86Webster Parish: 85.5 %Webster Parish85.5Plaquemines Parish: 84.9 %Plaquemines Parish84.9St. Martin Parish: 83.8 %St. Martin Parish83.8Iberia Parish: 83.5 %Iberia Parish83.5Jackson Parish: 83.3 %Jackson Parish83.3Vermilion Parish: 83.2 %Vermilion Parish83.2Jefferson Davis Parish: 82.9 %Jefferson Davis Parish82.9West Feliciana Parish: 82.6 %West Feliciana Parish82.6De Soto Parish: 82.5 %De Soto Parish82.5Tangipahoa Parish: 82.4 %Tangipahoa Parish82.4Winn Parish: 81.8 %Winn Parish81.8Washington Parish: 81.6 %Washington Parish81.6Red River Parish: 81.5 %Red River Parish81.5St. Bernard Parish: 81.5 %St. Bernard Parish81.5East Feliciana Parish: 81.3 %East Feliciana Parish81.3Grant Parish: 81.2 %Grant Parish81.2
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1St. Tammany Parish91.3
2St. Charles Parish90.7
3East Baton Rouge Parish90.4
4Bossier Parish90.4
5Lafayette Parish89.3
6Lincoln Parish88.9
7Ascension Parish88.7
8Orleans Parish88.2
8Ouachita Parish88.2
10Calcasieu Parish88.2
11Vernon Parish88
12Beauregard Parish87.5
13Livingston Parish87.4
14West Baton Rouge Parish87.2
15Rapides Parish87
16Natchitoches Parish87
17Jefferson Parish86.8
18Caddo Parish86.6
19Union Parish86.5
20Bienville Parish86.5
21St. John the Baptist Parish86.1
22Cameron Parish86.1
22Sabine Parish86.1
24St. James Parish86
25Webster Parish85.5
26Plaquemines Parish84.9
27St. Martin Parish83.8
28Iberia Parish83.5
29Jackson Parish83.3
30Vermilion Parish83.2
31Jefferson Davis Parish82.9
32West Feliciana Parish82.6
33De Soto Parish82.5
34Tangipahoa Parish82.4
35Winn Parish81.8
36Washington Parish81.6
37Red River Parish81.5
37St. Bernard Parish81.5
39East Feliciana Parish81.3
40Grant Parish81.2
41Concordia Parish81.2
42Pointe Coupee Parish81.1
43Terrebonne Parish81.1
44LaSalle Parish81.1
44St. Mary Parish81.1
46Lafourche Parish80.9
47West Carroll Parish80.8
48Acadia Parish80.3
49Morehouse Parish80
50Iberville Parish79.8
51Allen Parish79.8
52Richland Parish78.6
53St. Landry Parish78.2
54Claiborne Parish77.9
55Tensas Parish77.8
56St. Helena Parish77.4
57Franklin Parish76.9
58Caldwell Parish76.8
59Assumption Parish76.8
60Avoyelles Parish76.6
61Madison Parish75.4
62Evangeline Parish74.9
63Catahoula Parish72.8
64East Carroll Parish65.6

Other periods

About this ranking

People aged 25 and over who hold a regular high school diploma, a GED or alternative credential, or any higher level of education, as a percentage of all people aged 25 and over. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Measures the adult population, not students: it is not the high school graduation rate of a class. Not comparable with the EU share below upper secondary education, which covers ages 25 to 64.

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. American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat. 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). American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs (Counties in Louisiana by high school graduate or higher, population 25 and over, 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat

MLA 9

American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs, Counties in Louisiana by high school graduate or higher, population 25 and over, 2021. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat. Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/louisiana-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. Counties in Louisiana by high school graduate or higher, population 25 and over, 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat. Also distributed by Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/louisiana-counties?period=2021.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs, Counties in Louisiana by high school graduate or higher, population 25 and over, 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat, via Invokely: https://invokely.ai/rankings/high-school-graduate-or-higher/louisiana-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_louisiana_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs: Counties in Louisiana by high school graduate or higher, population 25 and over, 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/louisiana-counties?period=2021. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs: Counties in Louisiana by high school graduate or higher, population 25 and over, 2021
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat
L2  - https://invokely.ai/rankings/high-school-graduate-or-higher/louisiana-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/louisiana-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest high school graduate or higher, population 25 and over?

St. Tammany Parish, with 91.3% in 2021, according to the U.S. Census Bureau.

Which county has the lowest high school graduate or higher, population 25 and over?

East Carroll Parish, with 65.6% 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, American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. Retrieved 2026-10-12.

High school graduate or higher, population 25 and over: other rankings

Counties in Louisiana: more rankings