Demographics & People — Grand Isle, Louisiana

Population Overview

Population (Census)	644
Estimated 2026	~600
Median Age	58.4
Total Households	354
Family Households	202
Average Household Size	1.78
Diversity Index	0.0449 (relatively homogeneous)

Race & Ethnicity

White	599
Black or African American	9
Asian	0
Hispanic or Latino	5

Heritage & Ancestry

Group	Count
Unclassified or not reported	367
French (except Basque)	230
German	150
Other groups	100
French Canadian	87
English	71
Irish	45
Italian	40
Hispanic: Mexican	22
Hispanic: Hispanic or Latino	22

Language

English Only	595
Spanish	16
Population 5+	644

Veterans

Veterans	54
Population 18+	716

Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013 (county fallback). Data for Grand Isle, Louisiana.