Gwinnett - Demographics

Demographics

Historical populations
Census	Pop.	%±
1820	4,589	—
1830	13,289	189.6%
1840	10,804	−18.7%
1850	11,257	4.2%
1860	12,940	15.0%
1870	12,431	−3.9%
1880	19,531	57.1%
1890	19,899	1.9%
1900	25,585	28.6%
1910	28,824	12.7%
1920	30,327	5.2%
1930	27,853	−8.2%
1940	29,087	4.4%
1950	32,320	11.1%
1960	43,541	34.7%
1970	72,349	66.2%
1980	166,903	130.7%
1990	352,910	111.4%
2000	588,448	66.7%
2010	805,321	36.9%
Est. 2011	824,941	2.4%
U.S. Decennial Census 2011 estimate

The county is part of the Atlanta Metropolitan Area (Atlanta-Sandy Springs-Marietta, Georgia Metropolitan Statistical Area).

As of 2010, Gwinnett County had a population of 805,321. The racial and ethnic composition of the population was 53.3% white (44.0% non-Hispanic white), 23.6% black (22.9% non-Hispanic black), 2.7% Korean, 2.6% Asian Indian, 2.0% Vietnamese, 3.3% other Asian, 0.1% Pacific Islander, 8.8% some other race (0.3% non-Hispanic of some other race) and 3.1% from two or more races. 20.1% of the population was Hispanic or Latino with 10.7% of the total population, most being Mexican. Gwinnett is the most racially diverse county in the state of Georgia, and one of the most racially diverse counties in the country.

There were 202,317 households out of which 42.30% had children under the age of 18 living with them, 61.20% were married couples living together, 10.00% had a female householder with no husband present, and 24.70% were non-families. 18.40% of all households were made up of individuals and 3.10% had someone living alone who was 65 years of age or older. Self-reported same-sex unmarried-partner households account for 0.61% of all households. The average household size was 2.88 and the average family size was 3.28.

In the county the population was spread out with 28.20% under the age of 18, 8.70% from 18 to 24, 37.50% from 25 to 44, 20.30% from 45 to 64, and 5.40% who were 65 years of age or older. The median age was 32 years. For every 100 females there were 101.70 males. For every 100 females age 18 and over, there were 100.10 males.

The median income for a household in the county was $60,537, and the median income for a family was $66,693. Males had a median income of $42,343 versus $31,772 for females. The per capita income for the county was $25,006. About 3.80% of families and 5.70% of the population were below the poverty line, including 5.90% of those under age 18 and 5.50% of those age 65 or over.