Sibley County, Minnesota Demographics 2026
Sibley County, Minnesota has a population of 15,005, the 56th most populous county in Minnesota. The median household income is $77,634 and the median home value is $231,900. The poverty rate is 9.0%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Sibley County Quick Facts
How Sibley County 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 | 14,933 | 15,005 | +0.5% |
| Median household income | $76,082 | $77,634 | +2.0% |
| Median home value | $215,000 | $231,900 | +7.9% |
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
A less diverse community where one racial or ethnic group represents a large majority.
State average: 41 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Sibley County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Gaylord | 2,073 | $57,243 | 15.0% | $171,600 |
| Arlington | 2,065 | $68,073 | 8.6% | $206,300 |
| Winthrop | 1,381 | $69,219 | 6.1% | $169,600 |
| Gibbon | 918 | $55,278 | 17.8% | $102,700 |
| Henderson | 875 | $76,458 | 11.0% | $223,500 |
| Green Isle | 466 | $88,333 | 1.1% | $200,700 |
| New Auburn | 436 | $73,750 | 2.8% | $159,400 |
Explore Minnesota Rankings
Population Overview
Sibley County is located in Minnesota with a total population of 15,005. It is the 56th most populous county out of 87 in Minnesota. The county encompasses 7 Census-designated places.
Age Demographics
The median age in Sibley County is 42.4 years. This is 9% higher than the state median of 38.8 years.
Economy, Income & Housing
The median household income in Sibley County is $77,634. This is 13% lower than the state median of $89,062. It is also 4% lower than the national median of $80,734. The poverty rate stands at 9.0%. This is 3% lower than the state poverty rate of 9.3%. The unemployment rate is 3.8%. This is 7% lower than the state rate of 4.1%. The median home value is $231,900. Housing costs are 30% lower than the state median of $329,300. The home-value-to-income ratio is 3.0x. 80.8% of occupied housing units are owner-occupied. This homeownership rate is 12% higher than the state average of 72.2%.
Race & Ethnicity
Sibley County has a predominantly White (non-Hispanic) population, comprising 87.0% of all residents. Hispanic or Latino residents account for 9.3%. The Black or African American population (1.2%) is well below the state average of 7.0%. The Asian population (0.4%) is well below the state average of 5.1%.
Education
19.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 51% 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 94.0%.
Data Sources & Methodology
All figures for Sibley County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Minnesota and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.
Frequently Asked Questions
What is the population of Sibley County, Minnesota?
Sibley County has a population of 15,005, making it the 56th most populous county in Minnesota.
What is the median income in Sibley County?
The median household income in Sibley County is $77,634 with a poverty rate of 9.0%.
How many cities are in Sibley County, Minnesota?
Sibley County contains 7 Census-designated places.