Springfield is a city in and the county seat of Robertson County, which is located in Middle Tennessee on the northern border of the state. The population was 16,478 at the 2010 census and 17,277 in 2019.
Springfield is located at 36°29′58″N 86°52′43″W (36.499508, -86.878717).
According to the United States Census Bureau, the city has a total area of 12.2 square miles (32 km2), all land.
At the 2010 census there were 16,957 people in 6,212 households, including 3,778 families, in the city. The population density was 1,173.9 people per square mile (453.1/km²). There were 5,836 housing units at an average density of 478.1 per square mile (184.5/km²). The racial makeup of the city was 70.2% White, 21.4% African American, 0.1% Native American, 0.56% Asian, 0.03% Pacific Islander, 1.76% from other races, and 0.81% from two or more races. Hispanic or Latino of any race were 17.5%.
Of the 5,453 households 31.8% had children under the age of 18 living with them, 45.7% were married couples living together, 18.4% had a female householder with no husband present, and 30.7% were non-families. 25.8% of households were one person and 11.7% were one person aged 65 or older. The average household size was 2.55 and the average family size was 3.00.
The age distribution was 24.8% under the age of 18, 11.2% from 18 to 24, 29.1% from 25 to 44, 20.4% from 45 to 64, and 14.6% 65 or older.