2020 census As of the
2020 census, the county had a population of 71,608. The median age was 39.7 years. 24.7% of residents were under the age of 18 and 17.6% of residents were 65 years of age or older. For every 100 females there were 97.5 males, and for every 100 females age 18 and over there were 95.0 males age 18 and over. The racial makeup of the county was 78.8% White, 1.5%
Black or African American, 2.8%
American Indian and Alaska Native, 0.4%
Asian, 0.0%
Native Hawaiian and
Pacific Islander, 10.0% from some other race, and 6.6% from
two or more races.
Hispanic or Latino residents of any race comprised 16.4% of the population. There were 27,145 households in the county, of which 32.8% had children under the age of 18 living with them and 25.4% had a female householder with no spouse or partner present. About 25.9% of all households were made up of individuals and 12.4% had someone living alone who was 65 years of age or older. of 2010, there were 71,109 people, 26,842 households, and 19,361 families living in the county. The population density was . There were 31,109 housing units at an average density of . The racial makeup of the county was 84.5%
White (non-Hispanic), 1.5%
Black or
African American, 1.4%
Native American, 0.3%
Asian, 0.2%
Pacific Islander, 9.9% from
other races, and 2.2% from two or more races. 13.6% of the population were
Hispanic or
Latino of any race.
2000 census As of the census of 2000, there were 64,452 people, 25,113 households, and 18,432 families living in the county. The population density was . There were 28,051 housing units at an average density of . The racial makeup of the county was 92.55%
White (non-Hispanic), 1.68%
Black or
African American, 0.80%
Native American, 0.19%
Asian, 0.06%
Pacific Islander, 3.10% from
other races, and 1.62% from two or more races. 5.55% of the population were
Hispanic or
Latino of any race. According to the census of 2000, the largest ancestry groups in DeKalb County were
English 78.31%,
Scotch-Irish 8.29%,
Scottish 3.33%,
Irish 3.31%,
Welsh 1.22%, and
African 1.68%. ==Transportation==