St. Mary Parish, Louisiana Population 2019

St. Mary Parish, Louisiana's estimated population is 50,672 with a growth rate of -2.66% in the past year according to the most recent United States census data. St. Mary Parish, Louisiana is the 22nd largest county in Louisiana.

Year Population Growth Growth Rate
201849,774-898-1.77%
201750,672-1,387-2.66%
201652,059-822-1.55%
201552,881-402-0.75%
201453,283-307-0.57%
201353,590200.04%
201253,570-620-1.14%
201154,190-367-0.67%
201054,557-3,529-6.08%
199058,086-6,167-9.60%
198064,2533,5015.76%
197060,75211,91924.41%
196048,83312,98536.22%
195035,8484,39013.96%
194031,4582,0617.01%
193029,397-1,357-4.41%
192030,754-8,614-21.88%
191039,3685,22315.30%
190034,14511,72952.32%
189022,4162,52512.69%
188019,8916,03143.51%
187013,860-2,956-17.58%
186016,8163,11922.77%
185013,6974,74753.04%
18408,9502,50838.93%
18306,4420.00%

St. Mary Parish, Louisiana Population Growth

Population Data via

Population by Race

Race Population
White31,960
Black or African American16,362
Two or More Races2,051
Some Other Race906
Asian730
American Indian and Alaska Native562
Native Hawaiian and Other Pacific Islander7

St. Mary Parish, Louisiana Population Pyramid 2019

St. Mary Parish, Louisiana Median Age

38


Total

36.7


Male

39


Female

St. Mary Parish, Louisiana Adults

There are 39,692 adults, (7,829 of whom are seniors) in St. Mary Parish, Louisiana.

St. Mary Parish, Louisiana Age Dependency

65

Age Dependency Ratio

24.6

Old Age Dependency Ratio

40.4

Child Dependency Ratio

St. Mary Parish, Louisiana Sex Ratio

Female

26,425

50.26%

Male

26,153

49.74%

St. Mary Parish, Louisiana Households and Families

St. Mary Parish, Louisiana Renter vs Owner Occupied by Household Type

St. Mary Parish, Louisiana Household Types

Type Owner Renter
Married83.2%16.8%
All62.5%37.5%
Male60.4%39.6%
Female57.5%42.5%
Non Family46.5%53.5%

62.5%

Rate of Home Ownership

Type Count Average Size Owned
All20,0322.5862.5
Non Family8,4671.1546.5
Married7,3823.4283.2
Female2,9894.1657.5
Male1,1943.5460.4

3.52

Average Family Size

2.58

Average Household Size

4.4%

Unmarried (Opposite Sex)

0.1%

Unmarried (Same Sex)

St. Mary Parish, Louisiana Education

Education Attained Count Percentage
Less Than 9th Grade2,9268.33%
9th to 12th Grade4,17811.90%
High School Graduate17,18848.94%
Some College5,46815.57%
Associates Degree1,6244.62%
Bachelors Degree2,6497.54%
Graduate Degree1,0853.09%

St. Mary Parish, Louisiana Educational Attainment by Race

Name Total High School Bachelors
White20,98217,6442,671
Black10,3837,868780
Hispanic2,0721,319146
Multiple Races75459088
Other Race66546023
Asian58836052
Native American44531626
Islander774

The highest rate of high school graduation is among islander people with a rate of 100.00%.

The highest rate of bachelors degrees is among islander people with a rate of 57.14%.

Name Average Male Female
Overall$34,472$44,741$25,516
Less Than High School$22,371$32,195$9,683
High School Grad$35,213$45,271$26,276
Some College$32,272$47,500$23,218
Bachelors Degree$42,353$58,693$40,380
Graduate Degree$51,061$63,403$47,370

$34,472

Average Earnings

$44,741

Average Male

$25,516

Average Female

St. Mary Parish, Louisiana Language

St. Mary Parish, Louisiana Language by Age

St. Mary Parish, Louisiana Language

90.70% of St. Mary Parish, Louisiana residents speak only English, while 9.30% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 5.15% of the population.

St. Mary Parish, Louisiana Poverty

St. Mary Parish, Louisiana Poverty by Race

Name Total In Poverty Poverty Rate
Black15,9664,42027.68%
White28,9754,21614.55%
Hispanic3,52875021.26%
Multiple1,97053327.06%
Other84824528.89%
Asian73012316.85%
Native5487513.69%
Islander7685.71%

19.51%

Overall Poverty Rate

18.30%

Male Poverty Rate

20.69%

Female Poverty Rate

Poverty in St. Mary Parish, Louisiana

The race most likely to be in poverty in St. Mary Parish, Louisiana is Islander, with 85.71% below the poverty level.

The race least likely to be in poverty in St. Mary Parish, Louisiana is Native, with 13.69% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.38%. Among those working part-time, it was 25.59%, and for those that did not work, the poverty rate was 27.77%.

Name Poverty
Less Than High School26.10%
High School16.70%
Some College12.58%
Bachelors or Greater4.72%
Name Poverty
Male Unemployed40.83%
Female Unemployed36.39%
Female Employed10.57%
Male Employed6.41%

St. Mary Parish, Louisiana Income

St. Mary Parish, Louisiana Income by Household Type

Name Median Mean
Households$41,345$54,024
Families$51,043$65,810
Married Families$64,943$82,549
Non Families$29,010$36,141

St. Mary Parish, Louisiana Marital Status

St. Mary Parish, Louisiana Marital Status

Marriage Rates

37.8%

Overall Marriage Rate

38.6%

Male Marriage Rate

37.0%

Female Marriage Rate

St. Mary Parish, Louisiana Married by Age and Sex

St. Mary Parish, Louisiana Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 55-64.

St. Mary Parish, Louisiana Marital Status by Race

St. Mary Parish, Louisiana Veterans

2,378

Number of Veterans

2,236

Male Veterans

142

Female Veterans

War Veterans
Vietnam1,032
First Gulf War432
Second Gulf War240
Korea160
World War II83

St. Mary Parish, Louisiana Veterans by Race

Name Veterans % of Total
White1,7176.96%
Black6004.97%
Hispanic1024.32%
Indian163.30%
2 or More151.52%
Other152.02%
Asian152.30%

St. Mary Parish, Louisiana Veterans by Education

9.92%

Veteran Poverty Rate

29.98%

Veteran Disability Rate

St. Mary Parish, Louisiana Employment Status

56%

Labor Force Participation

51.1%

Employment Rate

8.5%

Unemployment Rate

Population of Cities in St. Mary Parish, Louisiana

City 2010 Census 2016 Estimated Growth Growth Rate
Morgan City 1240411646-758-6.11%
Franklin76607182-478-6.24%
Patterson61126061-51-0.83%
Berwick49464689-257-5.20%
Baldwin24362312-124-5.09%
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990