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Where am ILOCATED

Osage County, Kansas

Osage County, Kansas, has 15,693 residents (July 2025 estimate). Its county seat is Lyndon. It uses Central Time and covers 706 sq mi (1,827 km²) of land.

WichitaOverland Park
Osage County in Kansas
Franklin CountyLyon CountyOsage CityCarbondaleOverbrookBurlingameLyndon
Osage County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
15,693
Land area
706 sq mi (1,827 km²)
County seat or government
Lyndon
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$74,467 ± $3,932
Median home value
$156,800 ± $8,090
Median rent, with utilities
$785 ± $22
Homes lived in by their owners
82.4% ± 2.1 points
County type
County
Metro or micro area
Topeka, KS metro areaOutlying county
Water area
14.3 sq mi (37.1 km²)
State
Kansas
County code (FIPS)
20139
Coordinates (central point)
38.650215, -95.708255
Open this point in the location finder

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 zoneLocal time and UTC offsetNext clock change
Central TimeAmerica/ChicagoUTC-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

  1. 665233,941 people
  2. 664093,133 people
  3. 664023,100 people
  4. 665242,473 people
  5. 664142,360 people
  6. 664131,721 people
  7. 664511,671 people
  8. 668561,583 people
  9. 665371,475 people
  10. 668711,347 people
  11. 665461,143 people
  12. 66543980 people
All 15
  1. 66528761 people
  2. 66510684 people
  3. 66868620 people

15 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

  1. Ridgeway Township2,237 people
  2. Elk Township1,734 people
  3. Burlingame Township1,609 people
  4. Valley Brook Township1,562 people
  5. Scranton Township1,287 people
  6. Junction Township1,175 people
  7. Melvern Township655 people
  8. Fairfax Township476 people
  9. Agency Township465 people
  10. Olivet Township434 people
  11. Superior Township282 people
  12. Grant Township279 people
All 16
  1. Barclay Township239 people
  2. Lincoln Township183 people
  3. Arvonia Township165 people
  4. Dragoon Township134 people

People counts are American Community Survey 2020–2024 5-year estimates. All townships in Kansas, by county

School districts in Osage County, largest first

  1. Auburn-Washburn Unified School District 43737,439 people
  2. Shawnee Heights Unified School District 45021,126 people
  3. Santa Fe Trail Unified School District 4345,893 people
  4. West Franklin Unified School District 2874,757 people
  5. Osage City Unified School District 4203,650 people
  6. North Lyon County Unified School District 2513,299 people
  7. Mission Valley Unified School District 3302,908 people
  8. Lyndon Unified School District 4212,874 people
  9. Lebo-Waverly Unified School District 2432,797 people
  10. Burlingame Public School Unified School District 4541,715 people
  11. Marais des Cygnes Valley Unified School District 4561,498 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.

  1. Osage City, Kansas (city)2,828 people
  2. Carbondale, Kansas (city)1,341 people
  3. Overbrook, Kansas (city)1,113 people
  4. Burlingame, Kansas (city)1,046 people
  5. Lyndon, Kansas (city)1,023 people
  6. Scranton, Kansas (city)911 people
  7. Vassar, Kansas (CDP)832 people
  8. Quenemo, Kansas (city)353 people
  9. Melvern, Kansas (city)352 people
  10. Olivet, Kansas (city)180 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Franklin County, Kansas24 mi east
  2. Shawnee County, Kansas27 mi north
  3. Lyon County, Kansas28 mi southwest
  4. Douglas County, Kansas28 mi northeast
  5. Coffey County, Kansas29 mi south
  6. Wabaunsee County, Kansas34 mi northwest

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.