Arnoldsville is a city in Oglethorpe County, Georgia, United States. As of the 2010 census, the city had a population of 357.Arnoldsville is located at 33°54′20″N 83°13′0″W / 33.90556°N 83.21667°W / 33.90556; -83.21667.According to the United States Census Bureau, the city has a total area of 1.7 square miles, all land.As of the census of 2000, there were 312 people, 125 households, and 88 families residing in the city. The population density was 185.7 people per square mile. There were 136 housing units at an average density of 80.9 per square mile. The racial makeup of the city was 96.47% White, 1.60% African American, 0.32% Asian, 0.96% from other races, and 0.64% from two or more races. Hispanic or Latino of any race were 1.92% of the population.There were 125 households out of which 33.6% had children under the age of 18 living with them, 56.8% were married couples living together, 11.2% had a female householder with no husband present, and 29.6% were non-families. 28.