St Mary, Louisiana Voting-age Population By Ethnicity in Census 2020

Updated on February 22, 2026.

According to the data from the US 2020 decennial Census, in April 2020, among St Mary, LA population of 37,521 people, 56.54% of them (21,215 people) identified their ethnicity as Non-Hispanic - White Alone, 29.46% of them (11,052 people) identified their ethnicity as Non-Hispanic - Black or African American Alone, and 3.88% of them (1,455 people) identified their ethnicity as Hispanic - Some Other Race Alone.

The first chart below shows the voting-age population by ethnicity and the second chart shows the percentage of the voting-age population for each ethnicity. You can also find the information in a table below.

You can see similar information for other Louisiana counties and also for the state of Louisiana.

St Mary, LA Voting-age Population By Ethnicity in Census 2020
Non-Hispanic - White Alone
Non-Hispanic - Black Alone
Hispanic - Some Other Race Alone
Non-Hispanic - Two or More Races
Hispanic - Two or More Races
Non-Hispanic - American Indian & Alaska Native
Non-Hispanic - Asian Alone
Percentage of St Mary, LA Voting-age Population By Ethnicity in Census 2020
Non-Hispanic - White Alone
Non-Hispanic - Black Alone
Hispanic - Some Other Race Alone
Non-Hispanic - Two or More Races
Hispanic - Two or More Races
Non-Hispanic - American Indian & Alaska Native
Non-Hispanic - Asian Alone
St Mary, LA Voting-age Population By Ethnicity in Census 2020
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Ethnicity Voting-age Population % of County Voting-age Population
Non-Hispanic - White Alone 21215 56.54
Non-Hispanic - Black or African American Alone 11052 29.46
Hispanic - Some Other Race Alone 1455 3.88
Non-Hispanic - Two Or More Races 1020 2.72
Hispanic - Two Or More Races 982 2.62
Non-Hispanic - American Indian and Alaska Native Alone 652 1.74
Non-Hispanic - Asian Alone 513 1.37
Hispanic - White Alone 379 1.01
Non-Hispanic - Some Other Race Alone 104 0.28
Hispanic - Black or African American Alone 75 0.20
Hispanic - American Indian and Alaska Native Alone 63 0.17
Non-Hispanic - Native Hawaiian And Pacific Islander Alone 11 0.03
Hispanic - Asian Alone 0 0.00
Hispanic - Native Hawaiian And Pacific Islander Alone 0 0.00