County · Missouri
Osage County, Missouri
Osage County, Missouri. Osage County had 13,611 residents in 2025 by the Census Bureau's estimate, up 2.6% since 2020, faster than Missouri (+1.9%). It holds 8 places (8 cities, villages and boroughs) and 4 census tracts. GEOID 29151.
Osage County is one of the 4 counties of the Jefferson City, MO metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
13,611
Census Bureau estimate (no margin published)
2020 Census count: 13,274 · ACS 2020-2024: 13,402
Median household income
$76,681
±$5,883 (90% margin)
Missouri: $70,702
Median home value
$223,300
±$16,356 (90% margin)
Missouri: $230,300
Median gross rent
$639
±$77 (90% margin)
Missouri: $1,033
How many people live in Osage County, and is it growing?
The 2020 Census counted 13,274 residents in Osage County. The Census Bureau estimates 13,611 for July 1, 2025, up 2.6% since 2020, faster than Missouri (+1.9%). The 2020-2024 American Community Survey puts the population at 13,402 over 607 square miles of land.
| Measure | Osage County | Missouri | Change since 2015-2019 |
|---|---|---|---|
| Total population | 13,402 | 6,191,814 | −213 |
| Households | 5,287±189 | 2,508,227 | no clear change |
| Average household size | 2.48±0.09 | 2.40 | −0.12 |
| Housing units | 6,501±27 | 2,825,287 | −128 |
Osage County's population since 2000
From 13,062 in 2000 to 13,611 in 2025: up 4.2%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Osage County?
Osage County holds 8 places: 8 cities, villages and boroughs (incorporated places). The largest is Linn with 1,453 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Linn | 1,350 | $36,176 |
|---|---|---|
| FreeburgGEOID 2925822 | 409 | $48,125 |
| Westphalia | 378 | $61,136 |
| Chamois | 377 | $39,833 |
| Belle | 1,381 | $55,192 |
| MetaGEOID 2947594 | 180 | $42,708 |
| ArgyleGEOID 2901828 | 144 | $68,125 |
| Bland | 506 | $34,423 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Osage County?
The median resident of Osage County is 41.1 years old; 22.7% are under 18 and 18.3% are 65 or older. The largest group is non-Hispanic white residents at 96.6%, then non-Hispanic residents of two or more races at 1.8%.
| Measure | Osage County | Missouri | Change since 2015-2019 |
|---|---|---|---|
| Median age | 41.1±0.7 | 39.0 | no clear change |
| Under 18 years | 22.7%±0.2 pts | 22.3% | – |
| 65 years and over | 18.3%±0.2 pts | 17.9% | – |
| Hispanic or Latino (any race) | 1.1% | 5.2% | +0.3 pts |
| White alone, not Hispanic | 96.6%±0.3 pts | 76.3% | −1.9 pts |
| Black or African American alone, not Hispanic | 0.3%±0.3 pts | 10.9% | – |
| Asian alone, not Hispanic | 0.1%±0.2 pts | 2.1% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.1%±0.1 pts | 0.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.3 pts | 0.1% | – |
| Two or more races, not Hispanic | 1.8%±0.5 pts | 4.8% | – |
| Some other race alone, not Hispanic | 0.0%±0.3 pts | 0.4% | – |
| Born outside the United States | 0.3%±0.3 pts | 4.5% | – |
| Speak a language other than English at home (age 5+) | 0.8%±0.3 pts | 6.7% | – |
| Civilian veterans (age 18+) | 5.6%±0.9 pts | 7.3% | – |
| With a disability | 13.6%±1.6 pts | 14.9% | – |
| No health insurance coverage | 4.1%±1.1 pts | 8.8% | no clear change |
| High school graduate or higher (age 25+) | 91.2%±2.1 pts | 91.9% | – |
| Bachelor's degree or higher (age 25+) | 24.7%±2.9 pts | 32.4% | +5.8 pts |
| Graduate or professional degree (age 25+) | 7.6%±1.4 pts | 12.6% | – |
| Moved from another state in the past year | 1.6%±1.0 pts | 2.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Osage County earn?
Half of Osage County's 5,287 households earn less than $76,681 a year (±$5,883), against $70,702 in Missouri. In 2015-2019 it was $75,918 in 2024 dollars; the margins of error cannot tell the two periods apart. 8.6% of residents live below the poverty line.
| Measure | Osage County | Missouri | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $76,681±$5,883 | $70,702 | no clear change |
| Mean household income | $103,237±$18,984 | $96,247 | – |
| Per capita income | $41,168±$7,377 | $39,695 | no clear change |
| People below the poverty line | 8.6%±1.6 pts | 12.6% | no clear change |
| Children under 18 below the poverty line | 7.1%±2.9 pts | 15.8% | no clear change |
| Households receiving SNAP | 4.2%±1.2 pts | 9.8% | – |
| Households with a broadband subscription | 84.0%±2.8 pts | 89.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Osage County?
Owners occupy 79.4% of Osage County's occupied homes and renters 20.6%. The median owner-occupied home is valued at $223,300 by its owner (±$16,356). The median renter pays $639 a month including utilities, and 32.8% of renters pay 35% or more of their income on rent.
| Measure | Osage County | Missouri | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $223,300±$16,356 | $230,300 | +$36,358 |
| Median gross rent | $639±$77 | $1,033 | no clear change |
| Renters paying 35% or more of income on rent | 32.8%±7.4 pts | 36.6% | no clear change |
| Median monthly owner costs, with a mortgage | $1,503±$111 | $1,524 | – |
| Owner-occupied homes | 79.4%±2.5 pts | 68.1% | −5.2 pts |
| Housing units | 6,501±27 | 2,825,287 | −128 |
| Homeowner vacancy rate | 0.0%±0.8 pts | 0.9% | – |
| Rental vacancy rate | 13.2%±5.7 pts | 5.0% | – |
| Single-family detached homes | 80.1%±2.2 pts | 70.5% | – |
| Mobile homes | 6.5%±2.0 pts | 5.2% | – |
| Built 2020 or later | 1.4%±0.8 pts | 1.6% | – |
| Built 1939 or earlier | 15.6%±2.3 pts | 13.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Osage County building?
Builders took permits for 0 new housing units across Osage County in 2025 (0 single-family), 0.0 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Osage County get to work?
79.9% of Osage County's workers drive alone and 7.4% work from home. The average trip to work takes 26.4 minutes. The unemployment rate in 2020-2024 averaged 1.7%.
| Measure | Osage County | Missouri | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 63.8%±2.2 pts | 63.1% | – |
| Unemployment rate | 1.7%±0.9 pts | 4.0% | no clear change |
| Drove alone to work | 79.9%±3.2 pts | 74.8% | – |
| Carpooled | 9.8%±2.4 pts | 8.1% | – |
| Public transportation | 1.0%±1.2 pts | 0.8% | – |
| Walked | 1.1%±0.6 pts | 1.8% | – |
| Worked from home | 7.4%±2.0 pts | 13.0% | +4.6 pts |
| Mean travel time to work | 26.4 min±1.6 | 23.5 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Osage County's census tracts?
Osage County is divided into 4 census tracts. Among those with a reliable estimate, median household income runs from $57,024 (Tract 4902) to $103,657 (Tract 4903).
| Tract 490129151490100 | 3,306±404 | $74,360 |
|---|---|---|
| Tract 490229151490200 | 4,161±318 | $57,024 |
| Tract 490329151490300 | 3,545±378 | $103,657 |
| Tract 490429151490400 | 2,390±256 | $83,095 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Osage County compare with Missouri's other counties?
| Measure | Rank |
|---|---|
| Population | 73rd of 115 |
| Growth 2020-2025 | 45th of 115 |
| Residents per square mile | 75th of 115 |
| Median household income | 11th of 115 |
| Median home value | 19th of 115 |
| Median gross rent | 98th of 115 |
| Poverty rate | 104th of 115 |
| Bachelor's degree or higher | 25th of 115 |
| Median age | 55th of 115 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Osage County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.