St. Mary Parish

St. Mary Parish has 47,828 residents across 6 ZIP codes with their own report. Median household income is $52,576, 13% below the Louisiana figure. The typical owner-occupied home is valued at $138,900, and 14% of adults 25 and over hold a bachelor’s degree or higher.

County · ACS 2020–2024 · Updated October 24, 2026

47,828residentsACS 2020–2024

$52,576median household incomeLouisiana: $61K

$138,900median home valueowner-occupied homes

87%of households have broadbandhome internet subscription

St. Mary Parish in LouisianaZIP codes in St. Mary Parish highlighted; the rest of Louisiana in grey

Map of Louisiana with St. Mary Parish highlighted

Sources: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates · U.S. Census Bureau, 2024 Gazetteer and 2020 ZCTA relationship files

All 6 ZIP codes.

Colour shows where each zip code sits among the others in the table, from lowest to highest.

ZIP code	Residents	Household income	Home value	Owners	Bachelor's+	Broadband	Commute
70342	4,607	$52K	$212K	70%	27%	86%	23 min
70392	8,173	$58K	$159K	67%	10%	94%	26 min
70514	1,914	$32K	$116K	56%	5%	76%	29 min
70522	495	$26K	$-666667K	14%	0%	100%	22 min
70523	476	$63K	$120K	53%	9%	94%	24 min
70538	12,464	$52K	$118K	74%	14%	85%	22 min

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates

People.

47,828 residents in 18,463 households, next to the Louisiana figure.

25%

under 18

19%

aged 18–34

18%

aged 65 and over

30%

of households are people living alone

41%

of households are married couples

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates

Homes.

22,507 housing units; the median owner-occupied home is valued at $138,900 (±$8,393).

69%

of households own their home

69%

of homes are detached single-family houses

are in buildings with 5 or more units

18%

are mobile homes

18%

of housing units are vacant

$848

median gross rent a month

When homes were built

2020 or later0%

2010–20195%

2000–200912%

1990–199910%

1980–198914%

1970–197921%

1960–196914%

1950–195913%

1940–19495%

1939 or earlier6%

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates

Income and work.

Household income and work, in 2024 dollars; median household income ±$3,030.

$52,576

median household income

20.8%

of people live below the poverty line

5.4%

unemployment rate

14%

of adults 25+ hold a bachelor’s degree or higher

The poverty rate uses the federal poverty thresholds, which vary with family size. It says nothing on its own about what a neighborhood is like to live in.

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates

Getting around.

How workers aged 16 and over get to work, and how long it takes.

23 min

average commute to work

13%

of commuters travel 45 minutes or more

92%

of workers drive or carpool

take public transportation

walk or bike

work from home

11%

of households have no car

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates

Internet.

Home internet subscriptions.

87%

of households have a broadband subscription

11%

have no internet access at home

American Community Survey figures are estimates from a rolling sample, averaged over 2020–2024. Each comes with a margin of error, which is wider in places with fewer people.

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates