Oslo, Minnesota Demographics & Population 2026
During the 2020–2024 ACS period, Oslo, Minnesota had a total population of 260, the 635th largest city in Minnesota, with a median household income of $63,750, which is 28% lower than the state average. The poverty rate is 5.8%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Housing is very affordable with a home-value-to-income ratio of just 1.2x.
Oslo Quick Facts
How Oslo Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 297 | 260 | -12.5% |
| Median household income | $76,250 | $63,750 | -16.4% |
| Median home value | $101,800 | $79,600 | -21.8% |
How Oslo Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
Moderate diversity with one or two groups making up the majority.
State average: 41 | National average: 61
Education
Educational Attainment (Adults 25+)
Oslo Rankings in Minnesota
Explore Minnesota Rankings
Other Cities in Marshall County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Warren | 1,680 | $59,875 | 14.0% | $148,400 |
| Stephen | 526 | $71,250 | 9.9% | $87,500 |
| Argyle | 486 | $105,625 | 1.2% | $191,800 |
| Newfolden | 332 | $64,583 | 12.1% | $121,300 |
| Middle River | 319 | $76,250 | 14.9% | $101,900 |
| Alvarado | 317 | $66,964 | 12.3% | $133,300 |
| Grygla | 266 | $69,167 | 9.0% | $89,000 |
| Viking | 125 | $76,607 | 10.4% | $127,500 |
| Holt | 95 | $47,250 | 13.7% | $125,000 |
| Strandquist | 91 | $56,458 | 9.9% | N/A |
Cities Similar to Oslo
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Finlayson | 267 | $68,500 | $219,400 | 23.2% | 18.4% |
| Grygla | 266 | $69,167 | $89,000 | 8.2% | 9.0% |
| Hanley Falls | 248 | $61,563 | $75,300 | 7.3% | 11.3% |
| Rutledge | 275 | $65,000 | $102,700 | 10.5% | 14.4% |
| Swanville | 274 | $61,250 | $148,800 | 11.6% | 12.5% |
A note before these figures: with a population of 260, Oslo's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.
Population Overview
Oslo is a small community located in Minnesota, within Marshall County. The total population is 260. It ranks as the 635th most populous out of 914 Census-designated places in Minnesota.
Age Demographics
The median age in Oslo is 33.1 years. This is 15% lower than the state median of 38.8 years. With 31.5% of the population under 18, Oslo has a notably young demographic profile, suggesting a family-oriented community.
Economy, Income & Housing
The median household income in Oslo is $63,750. This is 28% lower than the state median of $89,062. It is also 21% lower than the national median of $80,734. The poverty rate stands at 5.8%. This is 38% lower than the state poverty rate of 9.3%. The unemployment rate is 5.1%. This is 25% higher than the state rate of 4.1%. The median home value is $79,600. Housing costs are 76% lower than the state median of $329,300. With a home-value-to-income ratio of just 1.2x, Oslo is one of the most affordable housing markets in the area. 85.3% of occupied housing units are owner-occupied. This homeownership rate is 18% higher than the state average of 72.2%.
Race & Ethnicity
The largest racial or ethnic group in Oslo is White (non-Hispanic), making up 63.8% of the population. Hispanic or Latino residents account for 35.0%. The Hispanic or Latino population is significantly higher than the state average (35.0% vs 6.4%).
Education
11.2% of residents aged 25 and older hold a bachelor's degree or higher. This is 71% lower than the state rate of 39.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 90.5%.
Data Sources & Methodology
All demographic data for Oslo, Minnesota is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Minnesota state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 914 Census-designated places in Minnesota. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Oslo, Minnesota?
Oslo, Minnesota has a population of 260 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Oslo, MN?
The median household income in Oslo is $63,750, which is 21% lower than the national median of $80,734.
What is the poverty rate in Oslo, MN?
The poverty rate in Oslo is 5.8%. This means approximately 15 residents live below the federal poverty line.
What is the racial makeup of Oslo, Minnesota?
Oslo's population is 63.8% White, 0.0% Black, 35.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Oslo, MN?
The median home value in Oslo is $79,600. The home-value-to-income ratio is 1.2x.
How educated is Oslo, Minnesota?
11.2% of adults (25+) in Oslo hold a bachelor's degree or higher, and 3.0% hold a graduate or professional degree.