Dallas County is a county located in the U.S. state of Missouri. As of the 2010 census, the population was 17,071.^[1] Its county seat is Buffalo.^[2] The county was organized in 1842 as Niangua County and then renamed in 1844 for George M. Dallas, who served as Vice President under James K. Polk.^[3][4]

Quick Facts Country, State ...

Dallas County
County
Dallas County Courthouse in Buffalo
Location within the U.S. state of Missouri
Missouri's location within the U.S.
Coordinates: 37°40′N 93°01′W
Country	United States
State	Missouri
Founded	December 10, 1844
Named for	George M. Dallas
Seat	Buffalo
Largest city	Buffalo
Area
• Total	543 sq mi (1,410 km2)
• Land	541 sq mi (1,400 km2)
• Water	2.1 sq mi (5 km2)  0.4%
Population  (2020)
• Total	17,071
• Density	31/sq mi (12/km2)
Time zone	UTC−6 (Central)
• Summer (DST)	UTC−5 (CDT)
Congressional district	4th

Close

Dallas County is part of the Springfield, MO Metropolitan Statistical Area.

According to the U.S. Census Bureau, the county has a total area of 543 square miles (1,410 km²), of which 541 square miles (1,400 km²) is land and 2.1 square miles (5.4 km²) (0.4%) is water.^[5]

As of the census of 2000,^[11] there were 15,661 people, 6,030 households and 4,383 families residing in the county. The population density was 29 inhabitants per square mile (11/km²). There were 6,914 housing units at an average density of 13 units per square mile (5.0/km²). The racial makeup of the county was 97.45% White, 0.12% Black or African American, 0.76% Native American, 0.07% Asian, 0.03% Pacific Islander, 0.20% from other races, and 1.37% from two or more races. Approximately 0.94% of the population were Hispanic or Latino of any race. 3.57% percent reported speaking Pennsylvania German or German at home. Dallas County is the county with the largest concentration of Kauffman Amish Mennonites, who have preserved Pennsylvania German as their everyday language and an old form of Standard German for church. They had 950 adherents in Dallas County in 2010.^[12]

There were 6,030 households, out of which 32.90% had children under the age of 18 living with them, 60.80% were married couples living together, 8.40% had a female householder with no husband present, and 27.30% were non-families. 23.70% of all households were made up of individuals, and 11.60% had someone living alone who was 65 years of age or older. The average household size was 2.57 and the average family size was 3.04.

In the county, the population was spread out, with 27.50% under the age of 18, 7.40% from 18 to 24, 26.40% from 25 to 44, 23.50% from 45 to 64, and 15.20% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 98.30 males. For every 100 females age 18 and over, there were 95.70 males.

The median income for a household in the county was $27,346; the median income for a family was $33,500. Males had a median income of $26,438 versus $17,569 for females. The per capita income for the county was $15,106. About 14.20% of families and 17.90% of the population were below the poverty line, including 25.40% of those under age 18 and 18.50% of those age 65 or over.

• Roy Meeker - professional baseball player

• National Register of Historic Places listings in Dallas County, Missouri