Dallas County, Missouri

Dallas County: County in Missouri, United States


Dallas County is a county located in the U.S. state of Missouri. As of the 2010 census, the population was 16,777 and a population density of 12 people per km². After 10 years in 2020 county had an estimated population of 17,219 inhabitants. Its county seat is Buffalo. The county was created 183 years ago in 1840.

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

Quick Facts about Dallas County

Population : 17,219 (2020)
Country : United States of America
State : Missouri (United States)
Different from : Dallas County, Dallam County, Dallas County, Dallas County, Dallas County
Area : 1406 km2
Water as percent of area : 0.4%
Land as percent of area : 99.6%
Named for : George M. Dallas
Capital : Buffalo
Establishment : January 01, 1841
Time Zone : America/Chicago
Local time : 00:12:24 (14th June 2024)
Density : 12 Pop. per km² as of 2020
Population growth : 2.57% (2010-2020)
Dallas County MO Courthouse 20151023-210 image
Dallas County MO Courthouse 20151023-210
Dallas County MO Courthouse 20151023-210 image


Dallas County is located at 37°40'49"N 93°1'25"W (37.6804100, -93.0236600). It has 5 neighbors: Camden County, Hickory County, Laclede County, Polk and Webster County.

Dallas County map

The largest city of Dallas County is Buffalo with a population of 3,202. Other cities include, Urbana population 423 and Louisburg population 116. See all Dallas County cities & populated places.

Dallas County Populated Places

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

City Name Population Title
Buffalo 3,202 City in Dallas County, Missouri, United States
Urbana 423 City in Dallas County, Missouri, United States of America
Louisburg 116 Human settlement in Dallas County, Missouri, United States of America

Dallas County has 5 neighbours.

  • Buffalo


The population of Dallas County increased by 2.57% in 10 years.

Year Population % Change Method
2010 16,777 - census
2011 16,687 -0.54% estimation process
2012 16,694 0.04% estimation process
2013 16,458 -1.43% estimation process
2014 16,335 -0.75% estimation process
2015 16,344 0.06% estimation process
2016 16,381 0.23% estimation process
2017 16,699 1.9% estimation process
2018 16,782 0.49% estimation process
2019 16,878 0.57% estimation process
2020 17,219 1.98% estimation process

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People born in Dallas County (1)

American football coach Roy McNeal was born in Dallas County

Other places with the same name (5)

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