|This article needs additional citations for verification. (October 2006)|
||This article's lead section may not adequately summarize key points of its contents. (August 2013)|
|Named for||Samuel Granville Smith, local politician|
|• Total||5.9 sq mi (15.2 km2)|
|• Land||5.9 sq mi (15.2 km2)|
|• Water||0.0 sq mi (0.0 km2)|
|Elevation||1,037 ft (316 m)|
|• Density||679.4/sq mi (262.3/km2)|
|Time zone||Central (CST) (UTC-6)|
|• Summer (DST)||CDT (UTC-5)|
|GNIS feature ID||1313778|
According to the United States Census Bureau, the city has a total area of 5.9 square miles (15 km2), all land.
As of the census of 2000, there were 3,994 people, 1,675 households, and 1,065 families residing in the city. The population density was 679.4 people per square mile (262.3/km²). There were 1,837 housing units at an average density of 312.5 per square mile (120.6/km²). The racial makeup of the city was 94.34% White, 2.73% African American, 0.15% Native American, 0.10% Asian, 1.65% from other races, and 1.03% from two or more races. Hispanic or Latino of any race were 4.06% of the population.
There were 1,675 households out of which 27.9% had children under the age of 18 living with them, 43.0% were married couples living together, 16.9% had a female householder with no husband present, and 36.4% were non-families. 33.4% of all households were made up of individuals and 15.1% had someone living alone who was 65 years of age or older. The average household size was 2.27 and the average family size was 2.85.
In the city the population was spread out with 22.9% under the age of 18, 8.9% from 18 to 24, 26.4% from 25 to 44, 22.3% from 45 to 64, and 19.6% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 83.2 males. For every 100 females age 18 and over, there were 78.0 males.
The median income for a household in the city was $22,482, and the median income for a family was $30,179. Males had a median income of $29,231 versus $20,705 for females. The per capita income for the city was $16,854. About 15.4% of families and 22.2% of the population were below the poverty line, including 28.3% of those under age 18 and 25.8% of those age 65 or over.
|This section needs additional citations for verification. (August 2013)|
The town's economy suffered a serious blow when the plant of its largest employer, automotive supplier Federal Mogul, was gutted in an arson attack by an employee in 2003 and was reopened in Smyrna. Federal Mogul reopened a Smithville branch in 2005. Foutch Industries rebuilt the original Federal Mogul plant and opened a Wal-Mart Supercenter in 2008.
Joe L. Evins helped start the world famous Smithville Fiddler's Jamboree & Crafts Festival. The first Jamboree was held in July 1972 on a stage built on the steps of the DeKalb County Courthouse, and has been held there annually on the weekend nearest to July 4. The first Jamboree attracted 714 musicians from 16 states, and was attended by an estimated audience of 8,000. Present day audiences are estimated to be well over 100,000 from all over the U.S., and many from abroad. 
- John Anderson, country music singer
- Joe L. Evins, U.S. representative
- Alan Jackson, country music singer; former resident
- Lonnie Mack, blues guitarist
- Thomas Gray Webb, "City of Smithville - History, 1995. Retrieved: 7 February 2013.
- Tennessee Blue Book, 2005-2006, pp. 618-625.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
- "US Board on Geographic Names". United States Geological Survey. 2007-10-25. Retrieved 2008-01-31.
- "Find a County". National Association of Counties. Retrieved 2011-06-07.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- "Census of Population and Housing: Decennial Censuses". United States Census Bureau. Retrieved 2012-03-04.
- "Incorporated Places and Minor Civil Divisions Datasets: Subcounty Resident Population Estimates: April 1, 2010 to July 1, 2012". Population Estimates. U.S. Census Bureau. Retrieved 11 December 2013.
- Information paraphrased from: http://www.smithvilletn.com/jamboree/ . See also: http://www.smithvilletn.com/jamboree/congress.htm and http://www.smithvilletn.com/jamboree/2006.htm