Gretna is a city in Gadsden County, Florida, United States. The population was 1,460 as of the 2010 census, down from 1,709 at the 2000 census. It is on U.S. 90 approximately south of the Florida-Georgia border. Gretna is part of the Tallahassee, Florida Metropolitan Statistical Area. Geography Gretna is in west-central Gadsden County at (30.615598, –84.662457). The city limits have expanded south and west to encompass part of Interstate 10; the city is now bordered on the south by Greensboro. U.S. Route 90 passes through Gretna as Main Street; it leads southeast to Quincy, the Gadsden County seat, and northwest to Chattahoochee. Interstate 10 passes through the southwest part of Gretna, with access from Exit 174 (Florida State Road 12). I-10 leads east to Tallahassee and west to Pensacola. SR 12 leads southwest to Bristol, and SR 65 leads south to Hosford. According to the United States Census Bureau, the city of Gretna has a total area of , of which , or 0.13%, is water. Demographics 2020 census As of the 2020 United States census, there were 1,357 people, 465 households, and 253 families residing in the city. 2000 census As of the census of 2000, there were 1,709 people, 503 households, and 401 families residing in the city. The population density was . There were 553 housing units at an average density of . The racial makeup of the city was 88.41% African American, 6.14% White, 0.18% Native American, 0.12% Asian, 4.68% from other races, and 0.47% from two or more races. Hispanic or Latino of any race were 9.65% of the population. There were 503 households, out of which 41.0% had children under the age of 18 living with them, 41.0% were married couples living together, 31.2% had a female householder with no husband present, and 20.1% were non-families. 18.1% of all households were made up of individuals, and 6.6% had someone living alone who was 65 years of age or older. The average household size was 3.40 and the average family size was 3.84. In the city, the population was spread out, with 35.0% under the age of 18, 11.2% from 18 to 24, 28.1% from 25 to 44, 17.7% from 45 to 64, and 8.0% who were 65 years of age or older. The median age was 28 years. For every 100 females, there were 93.5 males. For every 100 females age 18 and