Osage County, Missouri

Osage County: County in Missouri, United States


Osage County is a county located in the U.S. state of Missouri. As of the 2010 census, the population was 13,878 and a population density of 9 people per km². After 10 years in 2020 county had an estimated population of 13,535 inhabitants. Its county seat is Linn. The county was created 182 years ago in 1840.

Osage County locator map
Location of Osage County on Missouri map.

Quick Facts about Osage County

Population : 13,535 (2020)
Country : United States of America
State : Missouri (United States)
Different from : Osage County, Osage County
Area : 1589 km2
Water as percent of area : 1%
Land as percent of area : 99%
Named for : Osage River
Capital : Linn
Establishment : January 01, 1841
Time Zone : America/Chicago
Local time : 18:55:07 (28th September 2023)
Density : 9 Pop. per km² as of 2020
Population growth : -2.53% (2010-2020)
Weather : 84℉ Sunny 7-days weather
Osage County MO Courthouse 20140920-1 image
Osage County MO Courthouse 20140920-1
Osage County MO Courthouse 20140920-1 image


Osage County is located at 38°27'37"N 91°51'43"W (38.4603700, -91.8618400). It has 6 neighbors: Miller County, Callaway County, Cole County, Gasconade County, Maries County and Montgomery County.

Osage County map

The largest city of Osage County is Linn with a population of 1,557. Other cities include, Freeburg population 420, Chamois population 377, Westphalia population 375 and Meta population 218. See all Osage County cities & populated places.

Osage County Populated Places

Cities, towns, neighborhoods & other populated places in Osage County.

City Name Population Title
Linn 1,557 City in Missouri
Freeburg 420 Human settlement in Osage County, Missouri, United States of America
Chamois 377 City in Osage County, Missouri, United States
Westphalia 375 City in Missouri, United States
Meta 218 City in Missouri
Argyle 157 Village in Missouri, United States


Osage County forecast: Sunny, with a high near 84. more

Osage County has 6 neighbours.

  • Linn


According to census records, the population of Osage County decreased by 2.53% in 10 years.

Year Population % Change Method
2010 13,878 - census
2011 13,908 0.22% estimation process
2012 13,846 -0.45% estimation process
2013 13,677 -1.24% estimation process
2014 13,638 -0.29% estimation process
2015 13,538 -0.74% estimation process
2016 13,613 0.55% estimation process
2017 13,658 0.33% estimation process
2018 13,652 -0.04% estimation process
2019 13,615 -0.27% estimation process
2020 13,535 -0.59% estimation process

Comitatul Osage, Comte d'Osage, Comté d'Osage, Condado de Osage, Condado han Osage, Contea di Osage, Hrabstwo Osage, Okrug Osejdz, Osage, Osage Kun, Osage Kūn, Osage konderria, Osage megye, Osejdzh, Oseyj srjan, Quan Osage, Quận Osage, mqatʿt awsyj, osage ka'unti, oseji jun, ou sai qi xian, shhrstan awsyj myzwry, Округ Осејџ, Осейдж, Օսեյջ շրջան, آسیج کاؤنٹی، مسوری, اوسیچ کاؤنٹی،مسوری, شهرستان اوسیج، میزوری, مقاطعة أوسيج, ওসাগে কাউন্টি, オーセージ郡, 歐塞奇縣

Other places with the same name (3)

Missouri Other Counties (more counties)

County Name Population Title
Saint Louis County 994,020 County in Minnesota, United States
Jackson County 705,925 County in Oregon, United States
Kansas City 495,327 The third most populous city in Missouri and the center of the Kansas City metropolitan area.
Saint Charles County 406,204 County in Missouri, United States
St. Louis 315,685 The second most populous city in Missouri and the center of the St.
Greene County 294,997 County in Tennessee, United States
Clay County 253,463 County in North Carolina, United States
Jefferson County 226,543 County in Missouri, United States
Boone County 182,991 County in West Virginia, United States
Columbia 124,769 The most populous city in the state of Missouri.
Jasper County 121,648 County in South Carolina, United States
Independence 116,774 A city in Jackson County, Missouri.
East Independence 110,675 A census-designated place in Jackson County, Missouri.
Cass County 106,806 County in Missouri, United States
Platte County 106,532 County in Wyoming, United States
Franklin County 104,469 County in Missouri, United States