Gwinnett was one the nation's fastest-growing counties during the 1970s and 1980s. The rate of growth has slowed, but we are still growing.
According to the U.S. Census Bureau, Gwinnett County's estimated 2017 population is 920,260. Visit the U.S. Census Bureau Quick Facts page for other current statistics about Gwinnett.
Source: U.S. Census Bureau
| Census | Population |
| 2010 | 805,321 |
| 2000 | 588,448 |
| 1990 | 352,910 |
| 1980 | 166,903 |
| 1970 | 72,349 |
| 1960 | 43,541 |
| 1950 | 32,320 |
| 1940 | 29,087 |
| 1930 | 27,853 |
| 1920 | 30,327 |
| 1910 | 28,824 |
| 1900 | 25,585 |
| 1890 | 19,899 |
| 1880 | 19,531 |
| 1870 | 12,431 |
| 1860 | 12,940 |
| 1850 | 11,257 |
| 1840 | 10,804 |
| 1830 | 13,289 |
| 1820 | 4,589 |
