Oslo

County:: Marshall County
County Seat:: No
Area (mi²):: 0.371
State:: Minnesota

Oslo is a city located in Marshall County, Minnesota. Oslo has a 2025 population of 234. Oslo is currently declining at a rate of -0.85% annually and its population has decreased by -4.1% since the most recent census, which recorded a population of 244 in 2020.

The average household income in Oslo is $85,927 with a poverty rate of 1.35%. The median age in Oslo is 32.3 years: 32.9 years for males, and 25.9 years for females.

Demographics

The racial composition of Oslo includes 84.85% White, 13.8% other race, and smaller percentages for Two or more races, Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Other race

Two or more races

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	252	84.85%
Other race	41	13.8%
Two or more races	4	1.35%
Black or African American	0	0%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%

Oslo Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Oslo's average per capita income is $50,481. Household income levels show a median of $76,250. The poverty rate stands at 1.35%.

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	$90,833	$99,070
Married Families	$89,063	-
Households	$76,250	$85,927
Non Families	$51,250	$67,856

$50,481

Average Income

$76,250

Median Household Income

1.35%

Poverty Rate