Osage County, Missouri
Osage County, Missouri, has 13,611 residents (July 2025 estimate). Its county seat is Linn. It uses Central Time and covers 607 sq mi (1,571 km²) of land.
- Resident population, July 2025
- 13,611
- Land area
- 607 sq mi (1,571 km²)
- County seat or government
- Linn
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $76,681 ± $5,883
- Median home value
- $223,300 ± $16,356
- Median rent, with utilities
- $639 ± $77
- Homes lived in by their owners
- 79.4% ± 2.4 points
- County type
- County
- Metro or micro area
- Jefferson City, MO metro areaOutlying county
- Water area
- 6.85 sq mi (17.7 km²)
- State
- Missouri
- County code (FIPS)
- 29151
- Coordinates (central point)
- 38.464252, -91.859504
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Osage County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Central TimeAmerica/Chicago | UTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 6510128,793 people
- 650514,487 people
- 650133,137 people
- 650142,245 people
- 655821,732 people
- 650351,681 people
- 650581,274 people
- 650161,240 people
- 650241,218 people
- 650851,193 people
- 65054893 people
- 65061681 people
16 ZIP Code areas overlap Osage County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
Townships in Osage County, largest first
- Crawford Township4,219 people
- Washington Township3,513 people
- Linn Township2,160 people
- Jefferson Township1,305 people
- Benton Township1,156 people
- Jackson Township1,049 people
People counts are American Community Survey 2020–2024 5-year estimates. All townships in Missouri, by county
School districts in Osage County, largest first
- Gasconade County R-II School District11,018 people
- Osage County R-III School District6,254 people
- Maries County R-II School District5,170 people
- Osage County R-II School District5,165 people
- Osage County R-I School District996 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Belle, Missouri (city)1,246 people
- Linn, Missouri (city)1,197 people
- Bland, Missouri (city)476 people
- Westphalia, Missouri (city)415 people
- Freeburg, Missouri (village)401 people
- Chamois, Missouri (city)375 people
- Argyle, Missouri (town)117 people
- Meta, Missouri (city)115 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Gasconade County, Missouri19 mi east
- Maries County, Missouri21 mi south
- Cole County, Missouri23 mi west
- Callaway County, Missouri26 mi north
- Miller County, Missouri35 mi southwest
- Montgomery County, Missouri39 mi northeast
Before using this answer on a form
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