Which counties in Louisiana are losing population?

47 of the 64 counties in Louisiana had fewer residents in 2025 than in 2020. Cameron Parish lost the largest share, down 16.1% (−903 people). Orleans Parish lost the most residents (−21,207).

Of the 47 counties that lost residents between 2020 and 2025, the largest factor was natural change (more deaths than births) in 10 and net domestic migration (more residents moving to other U.S. counties than arriving) in 37 (Census Bureau components of population change).

Data as of 2025 · updated November 5, 2026

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All 47 Louisiana counties that lost residents

Counties losing population in Louisiana
Rank	County	Change 2020–25	Residents lost 2020–25	Residents 2025	Largest factor 2020–25
1	Cameron Parish	−16.1%	−903	4,718	Domestic migration (−1,019)
2	Madison Parish	−10.9%	−1,085	8,844	Domestic migration (−1,000)
3	Tensas Parish	−9.9%	−407	3,700	Domestic migration (−238)
4	East Carroll Parish	−8.6%	−638	6,760	Domestic migration (−526)
5	Vernon Parish	−7.3%	−3,541	45,091	Domestic migration (−5,627)
6	Catahoula Parish	−7.0%	−623	8,223	Domestic migration (−352)
7	Morehouse Parish	−6.9%	−1,754	23,705	Domestic migration (−1,149)
8	Assumption Parish	−5.9%	−1,242	19,720	Domestic migration (−883)
9	St. John the Baptist Parish	−5.9%	−2,487	39,875	Domestic migration (−3,166)
10	St. James Parish	−5.9%	−1,179	18,938	Domestic migration (−1,079)
11	Pointe Coupee Parish	−5.6%	−1,156	19,520	Domestic migration (−809)
12	West Carroll Parish	−5.5%	−538	9,156	Natural change (−329)
13	Orleans Parish	−5.5%	−21,207	362,154	Domestic migration (−30,880)
14	Red River Parish	−5.5%	−418	7,165	Domestic migration (−293)
15	Caddo Parish	−5.4%	−12,798	224,226	Domestic migration (−12,066)
16	Claiborne Parish	−5.3%	−754	13,354	Domestic migration (−390)
17	Plaquemines Parish	−5.3%	−1,247	22,256	Domestic migration (−1,714)
18	St. Mary Parish	−5.3%	−2,597	46,552	Domestic migration (−3,125)
19	Webster Parish	−5.2%	−1,936	34,948	Natural change (−1,044)
20	Bienville Parish	−5.0%	−647	12,269	Natural change (−359)
21	Terrebonne Parish	−4.8%	−5,252	104,163	Domestic migration (−7,966)
22	Iberia Parish	−4.6%	−3,208	66,846	Domestic migration (−3,615)
23	Avoyelles Parish	−4.3%	−1,704	37,941	Domestic migration (−1,293)
24	Concordia Parish	−4.0%	−738	17,836	Domestic migration (−1,055)
25	Calcasieu Parish	−3.7%	−8,008	208,466	Domestic migration (−11,484)
26	St. Charles Parish	−3.7%	−1,929	50,586	Domestic migration (−2,678)
27	Franklin Parish	−3.6%	−712	19,002	Domestic migration (−407)
28	Natchitoches Parish	−3.5%	−1,311	36,089	Domestic migration (−1,222)
29	Rapides Parish	−2.9%	−3,778	125,877	Domestic migration (−4,145)
30	Caldwell Parish	−2.8%	−272	9,344	Natural change (−240)
31	East Feliciana Parish	−2.8%	−536	18,911	Natural change (−561)
32	Union Parish	−2.5%	−536	20,561	Natural change (−483)
33	Jefferson Davis Parish	−2.4%	−766	31,471	Domestic migration (−616)
34	Richland Parish	−2.2%	−447	19,582	Domestic migration (−369)
35	Lafourche Parish	−2.0%	−1,916	95,505	Domestic migration (−2,860)
36	Jefferson Parish	−1.9%	−8,290	431,398	Domestic migration (−36,782)
37	St. Landry Parish	−1.9%	−1,541	80,765	Domestic migration (−1,823)
38	Iberville Parish	−1.6%	−491	29,579	Domestic migration (−555)
39	Sabine Parish	−1.2%	−262	21,834	Natural change (−373)
40	St. Helena Parish	−1.2%	−126	10,758	Natural change (−280)
41	Evangeline Parish	−1.0%	−321	31,980	Domestic migration (−1,347)
42	St. Martin Parish	−1.0%	−510	51,106	Domestic migration (−1,075)
43	Ouachita Parish	−1.0%	−1,564	158,542	Domestic migration (−4,066)
44	Washington Parish	−0.9%	−421	44,937	Natural change (−601)
45	Acadia Parish	−0.8%	−452	57,032	Domestic migration (−1,141)
46	West Feliciana Parish	−0.7%	−111	15,134	Natural change (−281)
47	Grant Parish	−0.3%	−75	22,075	Domestic migration (−188)

How this is ranked

Counties whose Census Bureau resident population estimate for July 1, 2025 is lower than for July 1, 2020, steepest percentage decline first. The largest factor is the most negative of natural change (births minus deaths), net domestic migration and net international migration over the same years (Census Bureau components of population change). Counties with fewer than 1,000 residents, or without a figure for the same period as the others, are left out, as on every ranking.

Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025). Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how ranks and figures are built. More on every layer: data sources and licences.

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Questions

Which county in Louisiana is losing population fastest?

Cameron Parish: down 16.1% between 2020 and 2025, to 4,718 residents (−903 people; Census Bureau population estimates). Next: Madison Parish (−10.9%) and Tensas Parish (−9.9%).

How many counties in Louisiana are losing population?

47 of the 64 counties in Louisiana had fewer residents in 2025 than in 2020; the other 17 grew or held steady.

Why are counties in Louisiana losing population?

More county rankings for Louisiana

Counties losing population in other states

Across the U.S.