The city now operates under the city manager form of government, whereby the commissioners hire a city manager for daily operations. On June 2, 2016 Blue Angels #6 crashed in Smyrna when practicing for the Great Tennessee Air show, killing pilot Capt. Jeff Kuss. According to the United States Census Bureau, the town has a total area of , of which is land and (0.61%) is water. Portions of the Percy Priest Lake reservoir lies within the town limits. The two main waterways are Stones River and Stewarts Creek. As of the census of 2010, there were 39,974 people, 14,807 households, and 10,509 families living in the city. The population density was 1,753.25 persons per square mile, and the housing unit density was 649.43 units per square mile. The racial makeup of the city was 75.00% White, 11.21% Black or African American, 4.35% Asian, 0.59% Native American, 0.08% Pacific Islander, 6.02% from other races, and 2.75% from two or more races. Those of Hispanic or Latino origins constituted 10.72% of the population. Of the 14,807 households, 37.23% had children under the age of 18 living in them, 50.46% were married couples living together, 5.54% had a male householder with no wife present, 14.98% had a female householder with no husband present, and 29.03% were non-families. 23.03% of all households were made up of individuals and 5.94% had someone living alone who was 65 years of age or older. The average household size was 2.68 and the average family size was 3.15. Of the 39,974 people living in the city, 27.89% were under the age of 18, 63.50% were between the ages of 18 and 64, and 8.60% were 65 years of age or older. The median age was 33.0 years. 51.32% of all persons were female and 48.68% were male. The median household income in the city was $51,505, and the median family income was $61,286. Males had a median income of $43,633 versus $37,029 for females. The per capita income for the city was $24,448. About 9.4% of families and 12.2% of the population were below the poverty line, including 18.3% of those under the age of 18 and 7.4% of those age 65 and over.