Counties in Louisiana by population density

Name: Counties in Louisiana by population density, 2021
Creator: U.S. Census Bureau
License: Public domain (US federal government work, citation requested)

Orleans Parish had the highest population density of 64 counties in 2021, at 859.5 inhabitants per km². Cameron Parish had the lowest, at 1.5 inhabitants per km². The median was 18.7 inhabitants per km² and the figure for Louisiana was 41.3 inhabitants per km². Source: the U.S. Census Bureau.

Highest859.5Orleans Parish

Lowest1.5Cameron Parish

Median18.764 counties

Louisiana41.3History

Top 40 counties, 2021

CSV Chart (SVG)

inhabitants per km². Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

Rank	Counties	2021 inhabitants per km²	Change on 2020
1	Orleans Parish	859.5	-1.5%
2	Jefferson Parish	557.3	-1.2%
3	East Baton Rouge Parish	384.6	-0.5%
4	Lafayette Parish	351.8	+1.1%
5	Ascension Parish	171.2	+1.3%
6	St. Tammany Parish	123.4	+2%
7	Caddo Parish	102.2	-1.8%
8	Ouachita Parish	100.6	-0.8%
9	Livingston Parish	87.1	+2.3%
10	St. John the Baptist Parish	75.8	-0.6%
11	Calcasieu Parish	74.4	-5.3%
12	St. Charles Parish	73	-0%
13	Tangipahoa Parish	66.1	+1.4%
14	Bossier Parish	59.4	+0.5%
15	West Baton Rouge Parish	55.8	+2%
16	Iberia Parish	46.6	-1%
17	St. Bernard Parish	45.3	+1.1%
18	Lincoln Parish	39.4	-0.3%
19	Rapides Parish	37.5	-0.8%
20	Lafourche Parish	35.2	+0.2%
21	St. Landry Parish	34.4	-0.1%
22	Terrebonne Parish	34.2	-0.4%
23	Acadia Parish	33.7	-0.4%
24	St. Mary Parish	33.3	-1.9%
25	St. James Parish	32.1	-1.6%
26	St. Martin Parish	27	-0.1%
27	Washington Parish	26.1	-0.3%
28	Webster Parish	23.4	-2.5%
29	Assumption Parish	23.2	-1.2%
30	Jefferson Davis Parish	19.2	+0.6%
31	Evangeline Parish	18.8	-0.2%
32	Vermilion Parish	18.7	-0.1%
33	Iberville Parish	18.6	-1%
34	Avoyelles Parish	18.2	-0.9%
35	East Feliciana Parish	16.5	-0.4%
36	West Feliciana Parish	14.8	+1.6%
37	Pointe Coupee Parish	14.1	-1.5%
38	Vernon Parish	14	-1.2%
39	Richland Parish	13.8	-0.8%
40	Grant Parish	13.3	+0.5%
41	Beauregard Parish	12.2	+0.2%
42	Morehouse Parish	12.2	-1.7%
43	Franklin Parish	12.1	-0.5%
44	De Soto Parish	11.9	+0.4%
45	Plaquemines Parish	11.6	-0.6%
46	Allen Parish	11.4	-0.4%
47	Natchitoches Parish	11.4	-1%
48	St. Helena Parish	10.3	+0.1%
49	West Carroll Parish	10.3	-1.1%
50	Concordia Parish	10.2	-1.1%
51	Jackson Parish	10.1	-0.6%
52	Sabine Parish	9.8	0%
53	Union Parish	9.3	-0.4%
54	LaSalle Parish	9.2	+0.2%
55	Red River Parish	7.5	-1%
56	Claiborne Parish	7.2	-0.4%
57	Caldwell Parish	7	-0.4%
58	East Carroll Parish	6.6	-2.2%
59	Bienville Parish	6.1	-1%
60	Madison Parish	6.1	-1.2%
61	Winn Parish	5.5	-1.6%
62	Catahoula Parish	4.8	-1.3%
63	Tensas Parish	2.6	-1.9%
64	Cameron Parish	1.5	-9.3%

Other periods

About this ranking

Resident population divided by land area in km². World Bank figures use mid-year population and land area excluding inland water.

United States: Census Bureau population estimates for 1 July divided by land area (water excluded) from the latest Census Gazetteer files. US tables often give people per square mile; multiply persons per km² by 2.59 to compare.

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 resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-09.

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Questions

Which county has the highest population density?

Orleans Parish, with 859.5 inhabitants per km² in 2021, according to the U.S. Census Bureau.

Which county has the lowest population density?

Cameron Parish, with 1.5 inhabitants per km² 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, Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². Retrieved 2026-10-09.