| Subject | Total | 18 years and over | Under 18 years | |||
| Number | Percent | Number | Percent | Number | Percent | |
| POPULATION | ||||||
| Total Population | 3,831,074 | 100.0 | 2,964,621 | 100.0 | 866,453 | 100.0 |
| RACE | ||||||
| One Race | 3,686,315 | 96.2 | 2,885,532 | 97.3 | 800,783 | 92.4 |
| White | 3,204,614 | 83.6 | 2,552,527 | 86.1 | 652,087 | 75.3 |
| Black or African American | 69,206 | 1.8 | 49,432 | 1.7 | 19,774 | 2.3 |
| American Indian and Alaska Native | 53,203 | 1.4 | 38,255 | 1.3 | 14,948 | 1.7 |
| Asian | 141,263 | 3.7 | 109,391 | 3.7 | 31,872 | 3.7 |
| Native Hawaiian and Other Pacific Islander | 13,404 | 0.3 | 9,259 | 0.3 | 4,145 | 0.5 |
| Some Other Race | 204,625 | 5.3 | 126,668 | 4.3 | 77,957 | 9.0 |
| Two or More Races | 144,759 | 3.8 | 79,089 | 2.7 | 65,670 | 7.6 |
HISPANIC OR LATINO AND RACE | ||||||
| Hispanic or Latino (of any race) | 450,062 | 11.7 | 269,748 | 9.1 | 180,314 | 20.8 |
| Not Hispanic or Latino | 3,381,012 | 88.3 | 2,694,873 | 90.9 | 686,139 | 79.2 |
| One Race | 3,271,173 | 85.4 | 2,632,464 | 88.8 | 638,709 | 73.7 |
| White | 3,005,848 | 78.5 | 2,432,835 | 82.1 | 573,013 | 66.1 |
| Black or African American | 64,984 | 1.7 | 46,946 | 1.6 | 18,038 | 2.1 |
| American Indian and Alaska Native | 42,706 | 1.1 | 31,862 | 1.1 | 10,844 | 1.3 |
| Asian | 139,436 | 3.6 | 108,223 | 3.7 | 31,213 | 3.6 |
| Native Hawaiian and Other Pacific Islander | 12,697 | 0.3 | 8,813 | 0.3 | 3,884 | 0.4 |
| Some Other Race | 5,502 | 0.1 | 3,785 | 0.1 | 1,717 | 0.2 |
| Two or More Races | 109,839 | 2.9 | 62,409 | 2.1 | 47,430 | 5.5 |
HOUSING UNITS | ||||||
| Total housing units | 1,675,562 | 100.0 | ||||
OCCUPANCY STATUS | ||||||
| Occupied housing units | 1,518,938 | 90.7 | ||||
| Vacant housing units | 156,624 | 9.3 | ||||