Counties in Louisiana by median age on 1 July (US county estimates), 2025

Tensas Parish had the highest median age on 1 July (US county estimates) of 64 counties in 2025, at 49 years. Lincoln Parish had the lowest, at 28.7 years. The median was 40.3 years. Source: the U.S. Census Bureau.

Highest49Tensas Parish

Lowest28.7Lincoln Parish

Median40.364 counties

Top 40 counties, 2025

years. Source: U.S. Census Bureau, Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2025 years	Change on 2024
1	Tensas Parish	49	+0.8
2	East Feliciana Parish	46.1	0
3	West Feliciana Parish	45.8	+0.2
4	Union Parish	45.3	+0.3
5	Claiborne Parish	45.2	+0.1
6	Assumption Parish	45	+0.5
7	West Carroll Parish	44.5	0
8	Pointe Coupee Parish	44.3	+0.4
9	Bienville Parish	43.8	-0.1
9	St. Helena Parish	43.8	+0.5
11	Sabine Parish	43.6	0
12	Webster Parish	43.5	+0.1
13	Morehouse Parish	43.3	-0.1
14	St. James Parish	42.6	+0.2
15	Cameron Parish	42.2	-0.1
15	Catahoula Parish	42.2	+0.2
17	St. Tammany Parish	41.8	+0.2
18	Jackson Parish	41.6	+0.3
18	Washington Parish	41.6	+0.3
20	Iberville Parish	41.3	0
21	De Soto Parish	41.2	-0.1
21	St. Martin Parish	41.2	+0.3
23	Franklin Parish	41	+0.2
23	St. Mary Parish	41	+0.1
25	Avoyelles Parish	40.9	+0.2
26	Red River Parish	40.8	+0.1
27	Caddo Parish	40.6	+0.2
27	St. Charles Parish	40.6	+0.4
29	Jefferson Parish	40.5	+0.3
29	St. John the Baptist Parish	40.5	0
31	Caldwell Parish	40.4	-0.1
31	Richland Parish	40.4	+0.1
33	Iberia Parish	40.3	+0.3
34	Madison Parish	40	+0.6
35	Concordia Parish	39.9	+0.3
35	Lafourche Parish	39.9	+0.3
37	Allen Parish	39.8	+0.2
38	Grant Parish	39.5	+0.1
39	Jefferson Davis Parish	39.4	+0.1
39	Rapides Parish	39.4	-0.1
39	Terrebonne Parish	39.4	+0.1
39	Vermilion Parish	39.4	+0.2
43	St. Landry Parish	39.3	0
44	Orleans Parish	39.2	+0.5
45	Acadia Parish	38.7	0
45	Beauregard Parish	38.7	+0.2
45	Plaquemines Parish	38.7	+0.3
48	Calcasieu Parish	38.5	+0.2
48	Evangeline Parish	38.5	-0.2
48	West Baton Rouge Parish	38.5	+0.1
51	Winn Parish	38.2	-0.1
52	Ascension Parish	37.7	+0.4
53	Ouachita Parish	37.4	+0.3
54	Bossier Parish	37.2	+0.2
55	Lafayette Parish	37.1	+0.2
56	East Carroll Parish	37	+0.3
57	Natchitoches Parish	36.9	0
58	Livingston Parish	36.7	+0.1
58	Tangipahoa Parish	36.7	+0.1
60	St. Bernard Parish	36.6	+0.4
61	LaSalle Parish	36.5	-0.2
62	East Baton Rouge Parish	35.6	+0.1
63	Vernon Parish	33.9	+0.4
64	Lincoln Parish	28.7	-0.3

Other periods

About this ranking

Age that divides the resident population of a US county into two halves of equal size on 1 July, from Census Bureau population estimates calculated by single year of age.

Counties only: the county file has no state or national medians, and medians cannot be added up. A single-year estimate, unlike median_age, which for US places is a five-year American Community Survey estimate.

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. Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. https://www.census.gov/programs-surveys/popest/data/data-sets.html. 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). Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage (Counties in Louisiana by median age on 1 July (US county estimates), 2025) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage, Counties in Louisiana by median age on 1 July (US county estimates), 2025. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/louisiana-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. Counties in Louisiana by median age on 1 July (US county estimates), 2025. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/louisiana-counties.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage, Counties in Louisiana by median age on 1 July (US county estimates), 2025 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/median-age-july-1-us-counties/louisiana-counties (Accessed: 12 October 2026).

BibTeX

@misc{census_counties_in_louisiana_by_2025,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program, county population by age and sex: median age (MEDIAN\_AGE\_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage: Counties in Louisiana by median age on 1 July (US county estimates), 2025}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/louisiana-counties. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: median age (MEDIAN\_AGE\_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}

RIS

TY  - DATA
AU  - U.S. Census Bureau
TI  - Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage: Counties in Louisiana by median age on 1 July (US county estimates), 2025
PY  - 2026
DA  - 2026/06/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/rankings/median-age-july-1-us-counties/louisiana-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/louisiana-counties.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  -

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Questions

Which county has the highest median age on 1 July (US county estimates)?

Tensas Parish, with 49 years in 2025, according to the U.S. Census Bureau.

Which county has the lowest median age on 1 July (US county estimates)?

Lincoln Parish, with 28.7 years in 2025.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. Retrieved 2026-10-12.