St. Mary

Parish in Louisiana

Parish

The population development of St. Mary.

Name	Status	Population Census 1990-04-01	Population Census 2000-04-01	Population Census 2010-04-01	Population Census 2020-04-01	Population Estimate 2024-07-01
St. Mary	Parish	58,086	53,500	54,650	49,408	46,799	→
Louisiana	State	4,219,973	4,468,976	4,533,372	4,657,874	4,597,740

Contents: Incorporated Places

The population development of the incorporated places in St. Mary.

The Details icon links to further information about a selected place including its population structure (gender, age groups, age distribution, urbanization, »race«, ethnicity).

Name	Status	Parish	Population Census 1990-04-01	Population Census 2000-04-01	Population Census 2010-04-01	Population Census 2020-04-01	Population Estimate 2024-07-01
Baldwin	Town	St. Mary	2,854	2,764	2,434	1,756	1,665	→
Berwick	Town	St. Mary	4,476	4,404	4,946	4,769	4,495	→
Franklin	City	St. Mary	9,374	8,425	7,667	6,706	6,284	→
Morgan City	City	St. Mary / St. Martin	14,531	12,723	12,404	11,477	10,813	→
Patterson	City	St. Mary	5,185	5,124	6,108	5,938	5,614	→

Source: U.S. Census Bureau.

Explanation: Latest available rebased population figures are used. In case of significant changes, they were recalculated by using census block data.

Further information about the population structure:

Gender (C 2020)
Males	24,081
Females	25,325

Age Groups (C 2020)
0-17 years	11,885
18-64 years	28,957
65+ years	8,564

Age Distribution (C 2020)
80+ years	1,947
70-79 years	3,805
60-69 years	6,545
50-59 years	6,865
40-49 years	5,655
30-39 years	5,972
20-29 years	5,516
10-19 years	6,810
0-9 years	6,291

Urbanization (C 2020)
Rural	9,643
Urban	39,763

»Race« (C 2020)
White	26,949
Black/African American	15,058
Indigenous	1,006
Asian	647
Pacific Islander	13
Some other	2,465
2 or more	3,268

Ethnicity (C 2020)
Hispanic or Latino	4,524
Other	44,882