Marine St. Croix

County:: Washington County
County Seat:: No
Area (mi²):: 3.908
State:: Minnesota

Marine St. Croix is a city located in Washington County, Minnesota. Marine St. Croix has a 2025 population of 653. Marine St. Croix is currently declining at a rate of -0.31% annually and its population has decreased by -1.51% since the most recent census, which recorded a population of 663 in 2020.

The average household income in Marine St. Croix is $147,395 with a poverty rate of 2.53%. The median age in Marine St. Croix is 58 years: 57.1 years for males, and 60.4 years for females.

Demographics

The racial composition of Marine St. Croix includes 96.07% White, and smaller percentages for Two or more races, Asian, Native American, Black or African American, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Asian

Native American

Black or African American

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	684	96.07%
Two or more races	17	2.39%
Asian	10	1.4%
Native American	1	0.14%
Black or African American	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Marine St. Croix Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Marine St. Croix's average per capita income is $68,281. Household income levels show a median of $123,750. The poverty rate stands at 2.53%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Families	$141,714	$171,073
Married Families	$141,714	-
Households	$123,750	$147,395
Non Families	$66,875	$87,225

$68,281

Average Income

$123,750

Median Household Income

2.53%

Poverty Rate