Oslo Flag

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.

234
Total Population
631
Density (mi²)
-2 -0.85%
Growth

Oslo Population

Oslo Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Oslo includes 84.85% White, 13.8% other race, and smaller percentages for Two or more races and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White25284.85%
Other race4113.8%
Two or more races41.35%

Oslo Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

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

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)