Population by Age in Cook County
*Base on 2010 Data
| Total population | 5,194,675 | 100.00% |
| Under 5 years | 342,493 | 6.59% |
| 5 to 9 years | 331,837 | 6.39% |
| 10 to 14 years | 339,576 | 6.54% |
| 15 to 19 years | 360,190 | 6.93% |
| 20 to 24 years | 372,503 | 7.17% |
| 25 to 29 years | 435,510 | 8.38% |
| 30 to 34 years | 396,053 | 7.62% |
| 35 to 39 years | 362,415 | 6.98% |
| 40 to 44 years | 347,380 | 6.69% |
| 45 to 49 years | 357,556 | 6.88% |
| 50 to 54 years | 359,507 | 6.92% |
| 55 to 59 years | 312,366 | 6.01% |
| 60 to 64 years | 256,960 | 4.95% |
| 65 to 69 years | 183,907 | 3.54% |
| 70 to 74 years | 140,614 | 2.71% |
| 75 to 79 years | 112,278 | 2.16% |
| 80 to 84 years | 92,153 | 1.77% |
| 85 years and over | 91,377 | 1.76% |
Male Population in Cook County
*Base on 2010 Data
| Male population | 2,514,314 | 48.40% |
| Under 5 years | 174,153 | 3.35% |
| 5 to 9 years | 168,600 | 3.25% |
| 10 to 14 years | 172,848 | 3.33% |
| 15 to 19 years | 183,431 | 3.53% |
| 20 to 24 years | 184,841 | 3.56% |
| 25 to 29 years | 214,382 | 4.13% |
| 30 to 34 years | 197,362 | 3.80% |
| 35 to 39 years | 179,623 | 3.46% |
| 40 to 44 years | 172,025 | 3.31% |
| 45 to 49 years | 174,306 | 3.36% |
| 50 to 54 years | 172,628 | 3.32% |
| 55 to 59 years | 148,009 | 2.85% |
| 60 to 64 years | 119,841 | 2.31% |
| 65 to 69 years | 82,698 | 1.59% |
| 70 to 74 years | 60,220 | 1.16% |
| 75 to 79 years | 46,108 | 0.89% |
| 80 to 84 years | 35,103 | 0.68% |
| 85 years and over | 28,136 | 0.54% |
Female Population in Cook County
*Base on 2010 Data
| Female population | 2,680,361 | 51.60% |
| Under 5 years | 168,340 | 3.24% |
| 5 to 9 years | 163,237 | 3.14% |
| 10 to 14 years | 166,728 | 3.21% |
| 15 to 19 years | 176,759 | 3.40% |
| 20 to 24 years | 187,662 | 3.61% |
| 25 to 29 years | 221,128 | 4.26% |
| 30 to 34 years | 198,691 | 3.82% |
| 35 to 39 years | 182,792 | 3.52% |
| 40 to 44 years | 175,355 | 3.38% |
| 45 to 49 years | 183,250 | 3.53% |
| 50 to 54 years | 186,879 | 3.60% |
| 55 to 59 years | 164,357 | 3.16% |
| 60 to 64 years | 137,119 | 2.64% |
| 65 to 69 years | 101,209 | 1.95% |
| 70 to 74 years | 80,394 | 1.55% |
| 75 to 79 years | 66,170 | 1.27% |
| 80 to 84 years | 57,050 | 1.10% |
| 85 years and over | 63,241 | 1.22% |
Median Age in Cook County
*Base on 2010 Data
| Both | 35.30% | |
| Male | 34.00% | |
| Female | 36.60% |
Race in Cook County
*Base on 2010 Data
| Total | 5,194,675 | 100.00% |
| Population of one race | 5,062,905 | 97.46% |
| White | 2,877,212 | 55.39% |
| Black or African American | 1,287,767 | 24.79% |
| American Indian and Alaska Native | 21,559 | 0.42% |
| Asian | 322,672 | 6.21% |
| Asian Indian | 93,730 | 1.80% |
| Chinese | 62,392 | 1.20% |
| Filipino | 64,349 | 1.24% |
| Japanese | 11,446 | 0.22% |
| Korean | 37,008 | 0.71% |
| Vietnamese | 13,522 | 0.26% |
| Other Asian | 40,225 | 0.77% |
| Native Hawaiian and Other Pacific Islander | 1,724 | 0.03% |
| Native Hawaiian | 430 | 0.01% |
| Guamanian or Chamorro | 542 | 0.01% |
| Samoan | 202 | 0.00% |
| Other Pacific Islander | 550 | 0.01% |
| Some Other Race | 551,971 | 10.63% |
| Population of Two or More Races | 131,770 | 2.54% |
| White; American Indian and Alaska Native | 9,552 | 0.18% |
| White; Asian | 26,680 | 0.51% |
| White; Black or African American | 21,706 | 0.42% |
| White; Some Other Race | 38,219 | 0.74% |
The Population 16 Years in Cook County
*Base on 2010 Data
| Total | 4,108,936 | 100.00% |
| Male | 1,962,021 | 47.75% |
| Female | 2,146,915 | 52.25% |
The Population 18 Years in Cook County
*Base on 2010 Data
| Total | 3,962,395 | 100.00% |
| Male | 1,886,969 | 47.62% |
| Female | 2,075,426 | 52.38% |
The Population 21 Years in Cook County
*Base on 2010 Data
| Total | 3,750,384 | 100.00% |
| Male | 1,779,937 | 47.46% |
| Female | 1,970,447 | 52.54% |
The Population 62 Years in Cook County
*Base on 2010 Data
| Total | 766,376 | 100.00% |
| Male | 320,111 | 41.77% |
| Female | 446,265 | 58.23% |
The Population 65 Years in Cook County
*Base on 2010 Data
| Total | 620,329 | 100.00% |
| Male | 252,265 | 40.67% |
| Female | 368,064 | 59.33% |
Race (total races tallied) in Cook County
*Base on 2010 Data
| White alone or in combination with one or more other races | 2,982,285 | 55.89% |
| Black or African American alone or in combination with one or more other races | 1,331,016 | 24.95% |
| American Indian and Alaska Native alone or in combination with one or more other races | 45,040 | 0.84% |
| Asian alone or in combination with one or more other races | 362,929 | 6.80% |
| Native Hawaiian and Other Pacific Islander alone or in combination with one or more other races | 6,393 | 0.12% |
| Some Other Race alone or in combination with one or more other races | 608,094 | 11.40% |
Hispanic or Latino by Specific Origin in Cook County
*Base on 2010 Data
| Total | 5,194,675 | 100.00% |
| Hispanic or Latino (of any race) | 1,244,762 | 23.96% |
| Mexican | 961,963 | 18.52% |
| Puerto Rican | 133,882 | 2.58% |
| Cuban | 13,679 | 0.26% |
| Other Hispanic or Latino | 135,238 | 2.60% |
| Not Hispanic or Latino | 3,949,913 | 76.04% |
Hispanic or Latino and Race in Cook County
*Base on 2010 Data
| Total | 5,194,675 | 100.00% |
| Hispanic or Latino | 1,244,762 | 23.96% |
| White alone | 598,854 | 11.53% |
| Black or African American alone | 21,989 | 0.42% |
| American Indian and Alaska Native alone | 14,877 | 0.29% |
| Asian alone | 3,803 | 0.07% |
| Native Hawaiian and Other Pacific Islander alone | 681 | 0.01% |
| Some Other Race alone | 544,220 | 10.48% |
| Two or More Races | 60,338 | 1.16% |
| Not Hispanic or Latino | 3,949,913 | 76.04% |
| White alone | 2,278,358 | 43.86% |
| Black or African American alone | 1,265,778 | 24.37% |
| American Indian and Alaska Native alone | 6,682 | 0.13% |
| Asian alone | 318,869 | 6.14% |
| Native Hawaiian and Other Pacific Islander alone | 1,043 | 0.02% |
| Some Other Race alone | 7,751 | 0.15% |
| Two or More Races | 71,432 | 1.38% |
Relationship in Cook County
*Base on 2010 Data
| Total | 5,194,675 | 100.00% |
| In households | 5,104,393 | 98.26% |
| Householder | 1,966,356 | 37.85% |
| Spouse | 803,942 | 15.48% |
| Child | 1,555,503 | 29.94% |
| Own child under 18 years | 1,039,320 | 20.01% |
| Other relatives | 472,552 | 9.10% |
| Under 18 years | 173,533 | 3.34% |
| 65 years and over | 60,016 | 1.16% |
| Nonrelatives | 306,040 | 5.89% |
| Under 18 years | 15,878 | 0.31% |
| 65 years and over | 11,736 | 0.23% |
| Unmarried partner | 128,099 | 2.47% |
| In group quarters | 90,282 | 1.74% |
| Institutionalized population | 45,749 | 0.88% |
| Male | 25,715 | 0.50% |
| Female | 20,034 | 0.39% |
| Noninstitutionalized population | 44,533 | 0.86% |
| Male | 22,621 | 0.44% |
| Female | 21,912 | 0.42% |
Households by Type in Cook County
*Base on 2010 Data
| Subject | Number | Percent |
|---|---|---|
| Total | 1,966,356 | 100.00% |
| Family households (families) | 1,211,420 | 61.61% |
| With own children under 18 years | 549,892 | 27.97% |
| Husband-wife family | 803,942 | 40.88% |
| With own children under 18 years | 361,549 | 18.39% |
| Male householder, no wife present | 101,003 | 5.14% |
| With own children under 18 years | 39,181 | 1.99% |
| Female householder, no husband present | 306,475 | 15.59% |
| With own children under 18 years | 149,162 | 7.59% |
| Nonfamily households | 754,936 | 38.39% |
| Householder living alone | 609,582 | 31.00% |
| Male | 267,067 | 13.58% |
| 65 years and over | 54,377 | 2.77% |
| Female | 342,515 | 17.42% |
| 65 years and over | 133,664 | 6.80% |
Households with individuals under 18 years in Cook County
*Base on 2010 Data
| Total | 631,369 | 32.11% |
Households with individuals under 65 years in Cook County
*Base on 2010 Data
| Total | 467,627 | 23.78% |
Average Household Size in Cook County
*Base on 2010 Data
| Average household size | 3 | % |
Average Family Size in Cook County
*Base on 2010 Data
| Average family size | 3 | % |
Housing Occupancy(Total housing units) in Cook County
*Base on 2010 Data
| Total | 2,180,359 | 100.00% |
| Occupied housing units | 1,966,356 | 90.18% |
| Vacant housing units | 214,003 | 9.82% |
| For rent | 87,844 | 4.03% |
| Rented, not occupied | 4,180 | 0.19% |
| For sale only | 35,879 | 1.65% |
| Sold, not occupied | 6,135 | 0.28% |
| For seasonal, recreational, or occasional use | 14,225 | 0.65% |
| All other vacants | 65,740 | 3.02% |
Homeowner Vacancy Rate in Cook County
*Base on 2010 Data
| Homeowner vacancy rate (percent) | 3.00% |
Rental Vacancy Rate in Cook County
*Base on 2010 Data
| Rental vacancy rate (percent) | 9.60% |
Housing Tenure(Occupied housing units) in Cook County
*Base on 2010 Data
| Total | 1,966,356 | 100.00% |
| Owner-occupied housing units | 1,143,857 | 58.17% |
| Renter-occupied housing units | 822,499 | 41.83% |
Population in Occupied Housing Units by Tenure(Population in occupied housing units) in Cook County
*Base on 2010 Data
| Owner-occupied housing units | 3,116,535 | 61.06% |
| Renter-occupied housing units | 1,987,858 | 38.94% |
Average Household Size of Occupied Housing Units by Tenure in Cook County
*Base on 2010 Data
| Owner occupied | 3 | % |
| Renter occupied | 2 | % |