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Biological history in Louisiana

Louisiana has 128 county-level biological declarations across 64 counties. Acadia Parish leads with 2 declarations. Total tracked FEMA obligations for biological events in this state: $2.3B.

This page shows every Louisiana county in Louisiana that has at least one FEMA biological declaration on record, ranked by how many times that hazard type triggered federal aid. Counties near the top of this list have recurring exposure to biological events — useful context for anyone evaluating property risk, insurance needs, or emergency planning in the area.

For the full national view of biological declarations across all states, see the biological disaster type page. For all hazard types in Louisiana, see the Louisiana state page.

Biological in Louisiana

Counties ranked by biological declaration count

#	County	Declarations	Tracked aid
1	Acadia Parish	2	$557K
2	Allen Parish	2	$263K
3	Ascension Parish	2	$501K
4	Assumption Parish	2	$46K
5	Avoyelles Parish	2	$227K
6	Beauregard Parish	2	$1.2M
7	Bienville Parish	2	$38K
8	Bossier Parish	2	$1.5M
9	Caddo Parish	2	$34.2M
10	Calcasieu Parish	2	$3.0M
11	Caldwell Parish	2	$120K
12	Cameron Parish	2	$0
13	Catahoula Parish	2	$78K
14	Claiborne Parish	2	$114K
15	Concordia Parish	2	$113K
16	De Soto Parish	2	$214K
17	East Baton Rouge Parish	2	$1.8B
18	East Carroll Parish	2	$50K
19	East Feliciana Parish	2	$124K
20	Evangeline Parish	2	$345K
21	Franklin Parish	2	$198K
22	Grant Parish	2	$63K
23	Iberia Parish	2	$651K
24	Iberville Parish	2	$150K
25	Jackson Parish	2	$101K
26	Jefferson Davis Parish	2	$329K
27	Jefferson Parish	2	$16.7M
28	LaSalle Parish	2	$90K
29	Lafayette Parish	2	$4.0M
30	Lafourche Parish	2	$2.2M
31	Lincoln Parish	2	$571K
32	Livingston Parish	2	$1.4M
33	Madison Parish	2	$76K
34	Morehouse Parish	2	$333K
35	Natchitoches Parish	2	$685K
36	Orleans Parish	2	$416.1M
37	Ouachita Parish	2	$4.6M
38	Plaquemines Parish	2	$1.8M
39	Pointe Coupee Parish	2	$95K
40	Rapides Parish	2	$3.2M
41	Red River Parish	2	$135K
42	Richland Parish	2	$154K
43	Sabine Parish	2	$113K
44	St. Bernard Parish	2	$729K
45	St. Charles Parish	2	$1.3M
46	St. Helena Parish	2	$55K
47	St. James Parish	2	$270K
48	St. John the Baptist Parish	2	$539K
49	St. Landry Parish	2	$2.2M
50	St. Martin Parish	2	$189K
51	St. Mary Parish	2	$711K
52	St. Tammany Parish	2	$51.2M
53	Tangipahoa Parish	2	$8.4M
54	Tensas Parish	2	$0
55	Terrebonne Parish	2	$12.1M
56	Union Parish	2	$654K
57	Vermilion Parish	2	$302K
58	Vernon Parish	2	$206K
59	Washington Parish	2	$508K
60	Webster Parish	2	$494K
61	West Baton Rouge Parish	2	$74K
62	West Carroll Parish	2	$171K
63	West Feliciana Parish	2	$2.9M
64	Winn Parish	2	$105K