Table DP-1. Profile of General Demographic Characteristics: 2020
Geographic area: Johnson County, Kansas
[For information on confidentiality protection, nonsampling error, and definitions, see www.census.gov]
SubjectNumberPercent SubjectNumberPercent
Total Population 609,863 100.0     
 RELATIONSHIP  
SEX AND AGE     Total population 609,863 100.0
Male 298,587 49.0  In households 604,182 99.1
Female 311,276 51.0    Householder 239,513 39.3
      Spouse, opposite-sex 129,934 21.3
Under 5 years 36,974 6.1    Spouse, same-sex 985 0.2
5 to 9 years 41,214 6.8    Unmarried partner, opposite-sex 12,181 2.0
10 to 14 years 43,296 7.1    Unmarried partner, same-sex 847 0.1
15 to 19 years 39,742 6.5    Child 184,772 30.3
20 to 24 years 33,403 5.5      Under 18 years 139,290 22.8
25 to 29 years 39,766 6.5    Grandchild 6,911 1.1
30 to 34 years 42,096 6.9      Under 18 years 5,296 0.9
35 to 39 years 44,585 7.3    Other relatives 15,580 2.6
40 to 44 years 40,817 6.7    Nonrelatives 13,459 2.2
45 to 49 years 39,067 6.4  In group quarters 5,681 0.9
50 to 54 years 37,755 6.2    Institutionalized population 4,055 0.7
55 to 59 years 39,371 6.5      Male 1,885 0.3
60 to 64 years 36,415 6.0      Female 2,170 0.4
65 to 69 years 32,102 5.3    Noninstitutionalized population 1,626 0.3
70 to 74 years 25,586 4.2      Male 653 0.1
75 to 79 years 16,247 2.7      Female 973 0.2
80 to 84 years 10,221 1.7 
85 years and over 11,206 1.8  HOUSEHOLDS BY TYPE
Median age (years) 38.2 (X)   Total households 239,492 100.0
 Married-couple 130,925 54.7
18 years and over 461,998 75.8    With own children under 18 years 57,198 23.9
  Male 223,139 74.7  Cohabiting-couple 13,008 5.4
  Female 238,859 76.7    With own children under 18 years 3,441 1.4
21 years and over 442,215 72.5  Female householder, no husband present 21,265 8.9
62 years and over 116,832 19.2    With own children under 18 years 9,531 4.0
65 years and over 95,362 15.6  Male householder, no husband present 11,448 4.8
  Male 42,329 14.2    With own children under 18 years 3,726 1.6
  Female 53,033 17.0  Householder living alone 62,846 26.2
   Householder 65 years and over 23,267 9.7
RACE 
One race 556,797 91.3  Households with individuals under 18 years 78,423 32.7
  White 473,342 77.6  Households with individuals 65 and over 64,858 27.1
  Black or African American 28,781 4.7  
  American Indian and Alaska Native 2,568 0.4 Average household size 2.52 (X)
  Asian 33,030 5.4 
  Native Hawaiian and Other Pac. Islander 384 0.1 HOUSING OCCUPANCY
  Some other race 18,692 3.1    Total housing units 251,681 100.0
Two or more races 53,066 8.7  Occupied housing units 239,492 95.2
 Vacant housing units 12,189 4.8
Race alone or in combination with one     For seasonal, rec., or occasional use 896 0.4
 or more other races:¹       
White 524,486 86.0  Homeowner vacancy rate (percent) 1.2 (X)
Black or African American 38,047 6.2  Rental vacancy rate (percent) 7.5 (X)
American Indian and Alaska Native 14,782 2.4
Asian 40,829 6.7  HOUSING TENURE
Native Hawaiian and Other Pac. Islander 1,120 0.2    Occupied housing units 239,492 100.0
Some other race 46,443 7.6  Owner-occupied housing units 161,322 67.4
 Renter-occupied housing units 78,170 32.6
HISPANIC OR LATINO AND RACE  
Hispanic or Latino (of any race) 54,389 8.9  
Not Hispanic or Latino 555,474 91.1 
  White alone 460,399 75.5
(X) Not applicable.
¹ In combination with one or more of the other races listed. The six numbers may add to more than the total population
   and the six percentages may add to more than 100 percent because individuals may report more than one race.
 
Source: U.S. Census Bureau, Census 2020.