Population by Age in Johnson County
*Base on 2010 Data
| Total population | 544,179 | 100.00% |
| Under 5 years | 39,180 | 7.20% |
| 5 to 9 years | 40,744 | 7.49% |
| 10 to 14 years | 40,024 | 7.35% |
| 15 to 19 years | 34,414 | 6.32% |
| 20 to 24 years | 27,890 | 5.13% |
| 25 to 29 years | 40,138 | 7.38% |
| 30 to 34 years | 39,098 | 7.18% |
| 35 to 39 years | 38,911 | 7.15% |
| 40 to 44 years | 39,125 | 7.19% |
| 45 to 49 years | 42,210 | 7.76% |
| 50 to 54 years | 39,629 | 7.28% |
| 55 to 59 years | 35,085 | 6.45% |
| 60 to 64 years | 28,409 | 5.22% |
| 65 to 69 years | 18,429 | 3.39% |
| 70 to 74 years | 12,727 | 2.34% |
| 75 to 79 years | 10,213 | 1.88% |
| 80 to 84 years | 8,621 | 1.58% |
| 85 years and over | 9,332 | 1.71% |
Male Population in Johnson County
*Base on 2010 Data
| Male population | 265,733 | 48.83% |
| Under 5 years | 20,119 | 3.70% |
| 5 to 9 years | 20,918 | 3.84% |
| 10 to 14 years | 20,493 | 3.77% |
| 15 to 19 years | 17,878 | 3.29% |
| 20 to 24 years | 13,714 | 2.52% |
| 25 to 29 years | 19,760 | 3.63% |
| 30 to 34 years | 19,275 | 3.54% |
| 35 to 39 years | 19,339 | 3.55% |
| 40 to 44 years | 19,347 | 3.56% |
| 45 to 49 years | 20,541 | 3.77% |
| 50 to 54 years | 18,893 | 3.47% |
| 55 to 59 years | 16,586 | 3.05% |
| 60 to 64 years | 13,683 | 2.51% |
| 65 to 69 years | 8,605 | 1.58% |
| 70 to 74 years | 5,832 | 1.07% |
| 75 to 79 years | 4,350 | 0.80% |
| 80 to 84 years | 3,338 | 0.61% |
| 85 years and over | 3,062 | 0.56% |
Female Population in Johnson County
*Base on 2010 Data
| Female population | 278,446 | 51.17% |
| Under 5 years | 19,061 | 3.50% |
| 5 to 9 years | 19,826 | 3.64% |
| 10 to 14 years | 19,531 | 3.59% |
| 15 to 19 years | 16,536 | 3.04% |
| 20 to 24 years | 14,176 | 2.61% |
| 25 to 29 years | 20,378 | 3.74% |
| 30 to 34 years | 19,823 | 3.64% |
| 35 to 39 years | 19,572 | 3.60% |
| 40 to 44 years | 19,778 | 3.63% |
| 45 to 49 years | 21,669 | 3.98% |
| 50 to 54 years | 20,736 | 3.81% |
| 55 to 59 years | 18,499 | 3.40% |
| 60 to 64 years | 14,726 | 2.71% |
| 65 to 69 years | 9,824 | 1.81% |
| 70 to 74 years | 6,895 | 1.27% |
| 75 to 79 years | 5,863 | 1.08% |
| 80 to 84 years | 5,283 | 0.97% |
| 85 years and over | 6,270 | 1.15% |
Median Age in Johnson County
*Base on 2010 Data
| Both | 36.40% | |
| Male | 35.20% | |
| Female | 37.60% |
Race in Johnson County
*Base on 2010 Data
| Total | 544,179 | 100.00% |
| Population of one race | 530,541 | 97.49% |
| White | 468,052 | 86.01% |
| Black or African American | 23,636 | 4.34% |
| American Indian and Alaska Native | 2,014 | 0.37% |
| Asian | 22,743 | 4.18% |
| Asian Indian | 8,595 | 1.58% |
| Chinese | 4,419 | 0.81% |
| Filipino | 1,482 | 0.27% |
| Japanese | 485 | 0.09% |
| Korean | 2,052 | 0.38% |
| Vietnamese | 1,863 | 0.34% |
| Other Asian | 3,847 | 0.71% |
| Native Hawaiian and Other Pacific Islander | 299 | 0.05% |
| Native Hawaiian | 67 | 0.01% |
| Guamanian or Chamorro | 75 | 0.01% |
| Samoan | 35 | 0.01% |
| Other Pacific Islander | 122 | 0.02% |
| Some Other Race | 13,797 | 2.54% |
| Population of Two or More Races | 13,638 | 2.51% |
| White; American Indian and Alaska Native | 2,565 | 0.47% |
| White; Asian | 3,207 | 0.59% |
| White; Black or African American | 3,696 | 0.68% |
| White; Some Other Race | 1,683 | 0.31% |
The Population 16 Years in Johnson County
*Base on 2010 Data
| Total | 416,318 | 100.00% |
| Male | 200,173 | 48.08% |
| Female | 216,145 | 51.92% |
The Population 18 Years in Johnson County
*Base on 2010 Data
| Total | 400,823 | 100.00% |
| Male | 192,185 | 47.95% |
| Female | 208,638 | 52.05% |
The Population 21 Years in Johnson County
*Base on 2010 Data
| Total | 385,343 | 100.00% |
| Male | 184,010 | 47.75% |
| Female | 201,333 | 52.25% |
The Population 62 Years in Johnson County
*Base on 2010 Data
| Total | 75,632 | 100.00% |
| Male | 33,048 | 43.70% |
| Female | 42,584 | 56.30% |
The Population 65 Years in Johnson County
*Base on 2010 Data
| Total | 59,322 | 100.00% |
| Male | 25,187 | 42.46% |
| Female | 34,135 | 57.54% |
Race (total races tallied) in Johnson County
*Base on 2010 Data
| White alone or in combination with one or more other races | 480,257 | 85.94% |
| Black or African American alone or in combination with one or more other races | 28,775 | 5.15% |
| American Indian and Alaska Native alone or in combination with one or more other races | 5,588 | 1.00% |
| Asian alone or in combination with one or more other races | 27,020 | 4.83% |
| Native Hawaiian and Other Pacific Islander alone or in combination with one or more other races | 805 | 0.14% |
| Some Other Race alone or in combination with one or more other races | 16,403 | 2.94% |
Hispanic or Latino by Specific Origin in Johnson County
*Base on 2010 Data
| Total | 544,179 | 100.00% |
| Hispanic or Latino (of any race) | 38,949 | 7.16% |
| Mexican | 29,026 | 5.33% |
| Puerto Rican | 1,369 | 0.25% |
| Cuban | 690 | 0.13% |
| Other Hispanic or Latino | 7,864 | 1.45% |
| Not Hispanic or Latino | 505,230 | 92.84% |
Hispanic or Latino and Race in Johnson County
*Base on 2010 Data
| Total | 544,179 | 100.00% |
| Hispanic or Latino | 38,949 | 7.16% |
| White alone | 22,008 | 4.04% |
| Black or African American alone | 608 | 0.11% |
| American Indian and Alaska Native alone | 375 | 0.07% |
| Asian alone | 145 | 0.03% |
| Native Hawaiian and Other Pacific Islander alone | 40 | 0.01% |
| Some Other Race alone | 12,933 | 2.38% |
| Two or More Races | 2,840 | 0.52% |
| Not Hispanic or Latino | 505,230 | 92.84% |
| White alone | 446,044 | 81.97% |
| Black or African American alone | 23,028 | 4.23% |
| American Indian and Alaska Native alone | 1,639 | 0.30% |
| Asian alone | 22,598 | 4.15% |
| Native Hawaiian and Other Pacific Islander alone | 259 | 0.05% |
| Some Other Race alone | 864 | 0.16% |
| Two or More Races | 10,798 | 1.98% |
Relationship in Johnson County
*Base on 2010 Data
| Total | 544,179 | 100.00% |
| In households | 539,013 | 99.05% |
| Householder | 212,882 | 39.12% |
| Spouse | 119,130 | 21.89% |
| Child | 165,545 | 30.42% |
| Own child under 18 years | 135,526 | 24.90% |
| Other relatives | 17,972 | 3.30% |
| Under 18 years | 5,958 | 1.09% |
| 65 years and over | 3,040 | 0.56% |
| Nonrelatives | 23,484 | 4.32% |
| Under 18 years | 1,635 | 0.30% |
| 65 years and over | 664 | 0.12% |
| Unmarried partner | 10,752 | 1.98% |
| In group quarters | 5,166 | 0.95% |
| Institutionalized population | 4,291 | 0.79% |
| Male | 1,885 | 0.35% |
| Female | 2,406 | 0.44% |
| Noninstitutionalized population | 875 | 0.16% |
| Male | 422 | 0.08% |
| Female | 453 | 0.08% |
Households by Type in Johnson County
*Base on 2010 Data
| Subject | Number | Percent |
|---|---|---|
| Total | 212,882 | 100.00% |
| Family households (families) | 145,262 | 68.24% |
| With own children under 18 years | 72,246 | 33.94% |
| Husband-wife family | 119,130 | 55.96% |
| With own children under 18 years | 56,625 | 26.60% |
| Male householder, no wife present | 7,516 | 3.53% |
| With own children under 18 years | 4,153 | 1.95% |
| Female householder, no husband present | 18,616 | 8.74% |
| With own children under 18 years | 11,468 | 5.39% |
| Nonfamily households | 67,620 | 31.76% |
| Householder living alone | 54,888 | 25.78% |
| Male | 22,478 | 10.56% |
| 65 years and over | 3,807 | 1.79% |
| Female | 32,410 | 15.22% |
| 65 years and over | 12,337 | 5.80% |
Households with individuals under 18 years in Johnson County
*Base on 2010 Data
| Total | 76,114 | 35.75% |
Households with individuals under 65 years in Johnson County
*Base on 2010 Data
| Total | 41,473 | 19.48% |
Average Household Size in Johnson County
*Base on 2010 Data
| Average household size | 3 | % |
Average Family Size in Johnson County
*Base on 2010 Data
| Average family size | 3 | % |
Housing Occupancy(Total housing units) in Johnson County
*Base on 2010 Data
| Total | 226,571 | 100.00% |
| Occupied housing units | 212,882 | 93.96% |
| Vacant housing units | 13,689 | 6.04% |
| For rent | 7,128 | 3.15% |
| Rented, not occupied | 333 | 0.15% |
| For sale only | 2,876 | 1.27% |
| Sold, not occupied | 618 | 0.27% |
| For seasonal, recreational, or occasional use | 1,007 | 0.44% |
| All other vacants | 1,727 | 0.76% |
Homeowner Vacancy Rate in Johnson County
*Base on 2010 Data
| Homeowner vacancy rate (percent) | 1.90% |
Rental Vacancy Rate in Johnson County
*Base on 2010 Data
| Rental vacancy rate (percent) | 10.20% |
Housing Tenure(Occupied housing units) in Johnson County
*Base on 2010 Data
| Total | 212,882 | 100.00% |
| Owner-occupied housing units | 150,722 | 70.80% |
| Renter-occupied housing units | 62,160 | 29.20% |
Population in Occupied Housing Units by Tenure(Population in occupied housing units) in Johnson County
*Base on 2010 Data
| Owner-occupied housing units | 408,272 | 75.74% |
| Renter-occupied housing units | 130,741 | 24.26% |
Average Household Size of Occupied Housing Units by Tenure in Johnson County
*Base on 2010 Data
| Owner occupied | 3 | % |
| Renter occupied | 2 | % |