Johnson County is a county located in western portion of the U.S. state of Missouri. As of the 2010 census, the population was 52,595 with a 2018 estimate of 53,652.[1][2] Its county seat is Warrensburg.[3] The county was formed December 13, 1834 from Lafayette County and named for Vice PresidentRichard Mentor Johnson.[4]
Johnson County comprises the Warrensburg Micropolitan Statistical Area, which is also included in the Kansas City-Overland Park-Kansas City, MO-KSCombined Statistical Area.
According to the U.S. Census Bureau, the county has a total area of 833 square miles (2,160 km2), of which 829 square miles (2,150 km2) is land and 3.9 square miles (10 km2) (0.5%) is water.[5]
U.S. Decennial Census[7] 1790-1960[8] 1900-1990[9] 1990-2000[10] 2010-2015[2]
As of the census[11] of 2000, there were 48,258 people, 17,410 households, and 11,821 families residing in the county. The population density was 58 people per square mile (22/km2). There were 18,886 housing units at an average density of 23 per square mile (9/km2). The racial makeup of the county was 90.12% White, 4.33% Black or African American, 0.65% Native American, 1.43% Asian, 0.13% Pacific Islander, 1.29% from other races, and 2.05% from two or more races. Approximately 2.92% of the population were Hispanic or Latino of any race.
There were 17,410 households, out of which 35.10% had children under the age of 18 living with them, 55.90% were married couples living together, 8.50% had a female householder with no husband present, and 32.10% were non-families. 22.70% of all households were made up of individuals, and 7.10% had someone living alone who was 65 years of age or older. The average household size was 2.58 and the average family size was 3.07.
In the county, the population was spread out, with 25.10% under the age of 18, 20.20% from 18 to 24, 27.60% from 25 to 44, 17.80% from 45 to 64, and 9.30% who were 65 years of age or older. The median age was 28 years. For every 100 females there were 101.90 males. For every 100 females age 18 and over, there were 100.40 males.
The median income for a household in the county was $35,391, and the median income for a family was $43,050. Males had a median income of $28,901 versus $21,376 for females. The per capita income for the county was $16,037. About 9.50% of families and 14.90% of the population were below the poverty line, including 15.20% of those under age 18 and 10.80% of those age 65 or over.
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Local[]
The Republican Party predominantly controls politics at the local level in Johnson County. Republicans hold all but two of the elected positions in the county.
Johnson County is divided into four legislative districts in the Missouri House of Representatives, all of which are held by Republicans.
District 51 — Dean Dohrman (R-La Monte). Consists of the eastern half of the city of Warrensburg.
Missouri House of Representatives — District 51 — Johnson County (2016)
Party
Candidate
Votes
%
±%
Republican
Dean Dohrman
3,713
67.39%
+13.82
Democratic
John Cozort
1,797
32.61%
-7.99
Missouri House of Representatives — District 51 — Johnson County (2014)
Party
Candidate
Votes
%
±%
Republican
Dean Dohrman
1,792
53.57%
+4.43
Democratic
Gary L. Grigsby
1,358
40.60%
-5.70
Libertarian
Bill Wayne
195
5.83%
+1.27
Missouri House of Representatives — District 51 — Johnson County (2012)
Party
Candidate
Votes
%
±%
Republican
Dean Dohrman
2,611
49.14%
Democratic
Gary L. Grigsby
2,460
46.30%
Libertarian
Bill Wayne
242
4.56%
District 52 — Nathan Beard (R-Sedalia). Consists of the community of Knob Noster, and Whiteman Air Force Base.
Missouri House of Representatives — District 52 — Johnson County (2016)
Party
Candidate
Votes
%
±%
Republican
Nathan Beard
1,189
69.74%
-30.26
Democratic
Kyle Garner
516
30.26%
+30.26
Missouri House of Representatives — District 52 — Johnson County (2014)
Party
Candidate
Votes
%
±%
Republican
Nathan Beard
711
100.00%
+34.18
Missouri House of Representatives — District 52 — Johnson County (2012)
Party
Candidate
Votes
%
±%
Republican
Stanley Cox
986
65.82%
Democratic
Phyllis Sue Domann
512
34.18%
District 53 — Glen Kolkmeyer (R-Odessa). Consists of the northern section of the county.
Missouri House of Representatives – District 122 – Johnson County (2016)
Party
Candidate
Votes
%
±%
Republican
Glen Kolkmeyer
582
100.00%
+34.36
Missouri House of Representatives — District 53 — Johnson County (2014)
Party
Candidate
Votes
%
±%
Republican
Glen Kolkmeyer
235
65.64%
+5.33
Democratic
Henry Grubb
123
34.36%
-5.33
Missouri House of Representatives — District 53 — Johnson County (2012)
Party
Candidate
Votes
%
±%
Republican
Glen Kolkmeyer
383
60.31%
Democratic
Holmes Osborne
252
39.69%
District 54 — Dan Houx (R- Warrensburg). Consists of western half of the city of Warrensburg and the communities of Centerview, Chilhowee, Holden, Kingsville, La Tour, and Leeton.
Missouri House of Representatives — District 54 — Johnson County (2016)
Party
Candidate
Votes
%
±%
Republican
Dan Houx
8,316
65.41%
-12.70
Democratic
Bob Gregory
3,549
27.92%
+27.92
Libertarian
Steve Daugherty
848
6.67%
+6.67
Missouri House of Representatives — District 54 — Johnson County (2014)
Party
Candidate
Votes
%
±%
Republican
Denny Hoskins
5,279
78.11%
+17.44
Constitution
Daniel Plemons
1,479
21.89%
+21.89
Missouri House of Representatives — District 54 — Johnson County (2012)
Party
Candidate
Votes
%
±%
Republican
Denny Hoskins
7,753
60.67%
Democratic
Nancy Maxwell
3,885
30.40%
Independent
Eddie Osborne
1,140
8.92%
All of Johnson County is a part of Missouri's 21st District in the Missouri Senate and is currently represented by Denny Hoskins (R-Warrensburg).
Missouri Senate — District 21 — Johnson County (2016)
Party
Candidate
Votes
%
±%
Republican
Denny Hoskins
14,641
70.46%
-2.70
Democratic
ElGene Ver Dught
5,028
24.20%
+1.64
Libertarian
Bill Wayne
1,110
5.34%
+1.07
Missouri Senate — District 21 — Johnson County (2012)
Party
Candidate
Votes
%
±%
Republican
David Pearce
14,983
73.16%
Democratic
ElGene Ver Dught
4,621
22.56%
Libertarian
Steven Hedrick
875
4.27%
Federal[]
U.S. Senate — Missouri — Johnson County (2016)
Party
Candidate
Votes
%
±%
Republican
Roy Blunt
11,611
54.88%
+13.41
Democratic
Jason Kander
8,315
39.30%
-9.80
Libertarian
Jonathan Dine
714
3.37%
-6.06
Green
Johnathan McFarland
268
1.27%
+1.27
Constitution
Fred Ryman
248
1.17%
+1.17
U.S. Senate — Missouri — Johnson County (2012)
Party
Candidate
Votes
%
±%
Republican
Todd Akin
8,613
41.47%
Democratic
Claire McCaskill
10,197
49.10%
Libertarian
Jonathan Dine
1,959
9.43%
All of Johnson County is included in Missouri's 4th Congressional District and is currently represented by Vicky Hartzler (R-Harrisonville) in the U.S. House of Representatives.
U.S. House of Representatives — Missouri's 4th Congressional District — Johnson County (2016)
Party
Candidate
Votes
%
±%
Republican
Vicky Hartzler
14,102
67.63%
-0.14
Democratic
Gordon Christensen
5,584
26.78%
+1.05
Libertarian
Mark Bliss
1,167
5.59%
-0.91
U.S. House of Representatives — Missouri's 4th Congressional District — Johnson County (2014)
Party
Candidate
Votes
%
±%
Republican
Vicky Hartzler
7,770
67.77%
+7.59
Democratic
Nate Irvin
2,950
25.73%
-9.05
Libertarian
Herschel L. Young
745
6.50%
+2.48
U.S. House of Representatives — Missouri’s 4th Congressional District — Johnson County (2012)
Party
Candidate
Votes
%
±%
Republican
Vicky Hartzler
12,356
60.18%
Democratic
Teresa Hensley
7,140
34.78%
Libertarian
Thomas Holbrook
825
4.02%
Constitution
Greg Cowan
209
1.02%
Political culture[]
Johnson is a solidly Republican county. The last Democrat to carry Johnson county was Bill Clinton in 1992.