Liberty County was established in 1777. It is named for the American ideal of liberty. Sunbury was first designated the county seat in 1784. In 1797, the seat was transferred to Riceboro and in 1837 it was transferred again to Hinesville.
Geography
According to the U.S. Census Bureau, the county has a total area of, of which is land and is water. The eastern and southern portion of Liberty County is located in the Ogeechee Coastal sub-basin of the Ogeechee River basin. The northern and western portion of the county is located in the Canoochee River sub-basin of the Ogeechee River basin.
At the 2000 census there were 61,610 people, 19,383 households, and 15,138 families living in the county. The population density was 119 people per square mile. There were 21,977 housing units at an average density of 42 per square mile. The racial makeup of the county was 46.64% White, 42.84% Black or African American, 0.52% Native American, 1.76% Asian, 0.43% Pacific Islander, 4.43% from other races, and 3.37% from two or more races. 8.15% of the population were Hispanic or Latino of any race. According to 2005 Census Estimates Liberty County had a population that was 44.5% African-American, 44.4% Non-Hispanic white, 7.2% Latino, 3.1% non-Hispanics who reported multiple races, 1.9% Asian and 0.5% of both Native Americans and Pacific Islanders. Of the 19,383 households 50.50% had children under the age of 18 living with them, 59.60% were married couplesliving together, 14.80% had a female householder with no husband present, and 21.90% were non-families. 16.60% of households were one person and 3.20% were one person aged 65 or older. The average household size was 2.93 and the average family size was 3.29. The age distribution was 32.00% under the age of 18, 17.90% from 18 to 24, 33.90% from 25 to 44, 12.20% from 45 to 64, and 3.90% 65 or older. The median age was 25 years. For every 100 females, there were 111.30 males. For every 100 females age 18 and over, there were 115.10 males. The median household income was $33,477 and the median family income was $35,031. Males had a median income of $25,305 versus $20,765 for females. The per capita income for the county was $13,855. About 13.50% of families and 15.00% of the population were below the poverty line, including 19.20% of those under age 18 and 19.90% of those age 65 or over.
2010 census
At the 2010 census, there were 63,453 people, 22,155 households, and 16,566 families living in the county. The population density was. There were 26,731 housing units at an average density of. The racial makeup of the county was 47.1% white, 42.2% black or African American, 2.0% Asian, 0.6% Pacific islander, 0.6% American Indian, 2.9% from other races, and 4.7% from two or more races. Those of Hispanic or Latino origin made up 9.7% of the population. In terms of ancestry, 8.8% were German, 6.9% were Irish, and 6.0% were American. Of the 22,155 households, 45.9% had children under the age of 18 living with them, 49.0% were married couples living together, 21.5% had a female householder with no husband present, 25.2% were non-families, and 20.7% of households were made up of individuals. The average household size was 2.75 and the average family size was 3.18. The median age was 27.9 years. The median household income was $42,674 and the median family income was $46,818. Males had a median income of $35,881 versus $31,159 for females. The per capita income for the county was $18,662. About 15.0% of families and 17.8% of the population were below the poverty line, including 26.2% of those under age 18 and 13.4% of those age 65 or over.
