Arlington County (1990 and 2000)
| 1990 | 2000** | Change | % Change | |||
| Number | Percent | Number | Percent | 1990 - 2000 | 1990 - 2000 | |
| TOTAL POPULATION | 170,936 | 100.0 | 189,453 | 100.0 | 18,517 | 10.8 |
| Population of One Race | - | - | 181,224 | 95.7 | - | - |
| White | 130,873 | 76.6 | 130,601 | 68.9 | -272 | -0.2 |
| Black or African-American | 17,940 | 10.5 | 17,705 | 9.3 | -235 | -1.3 |
| Asian and Other Pacific Islander | 11,560 | 6.8 | 16,470 | 8.7 | 4,910 | 42.5 |
| American Indian and Alaska Native | 537 | 0.3 | 662 | 0.3 | 125 | 23.3 |
| Some Other Race | 10,026 | 5.9 | 15,786 | 8.3 | 5,760 | 57.5 |
| Population of Two or More Races | - | - | 8,229 | 4.3 | - | - |
| Hispanic - All Races* | 23,089 | 13.5 | 35,268 | 18.6 | 12,179 | 52.7 |
| NON-HISPANIC POPULATION | 147,847 | 86.5 | 154,185 | 81.4 | 6,338 | 4.3 |
| Population of One Race | - | - | 149,084 | 78.7 | - | - |
| White | 118,728 | 69.5 | 114,489 | 60.4 | -4,239 | -3.6 |
| Black or African-American | 17,225 | 10.1 | 17,244 | 9.1 | 19 | 0.1 |
| Asian and Other Pacific Islander | 11,161 | 6.5 | 16,346 | 8.6 | 5,185 | 46.5 |
| American Indian and Alaska Native | 465 | 0.3 | 418 | 0.2 | -47 | -10.1 |
| Some Other Race | 268 | 0.2 | 587 | 0.3 | 319 | 119.0 |
| Population of Two or More Races | - | - | 5,101 | 2.7 | - | - |
| Source: U.S. Census Bureau. | ||||||
| * Hispanic Origin is not a separate race. A person identified as Hispanic may be of any race. | ||||||
| ** The Census Bureau included multi-racial categories in the 2000 Census that were not included in the 1990 Census. Therefore, race data from 1990 and 2000 should be compared cautiously. | ||||||