***If you are having difficulties with this site and are using Internet Explorer 10 or later, please ensure that the site is added to the compatibility view list. Microsoft provides instructions for doing this here.***. Henderson County Home.
Homefacts City Report. Duncan is located in Spartanburg County, SC. The population is 3,173, making Duncan the 8th largest city in Spartanburg County. There are 7 public schools in Duncan with an average Homefacts rating of B+. The total crime rate for Duncan is low, and there are 17 registered sex offenders residing in the city.
Duncanville, TX. Online Offers. Duncanville is a city in Dallas County, Texas (USA). Duncanville's population was 36,081 at the 2000 census, and estimated at 42,500 in 2008. Duncanville is a suburb of Dallas and is part of the Best Southwest area, which includes Duncanville, Cedar Hill, DeSoto, and Lancaster. Duncanville is located at 32Â°38â²47â³N 96Â°54â²41â³W / 32.64639Â°N 96.91139Â°W / 32.64639; -96.91139 (32.646333, -96.911309).