Henderson, NC. Sponsored Topics. Henderson, with a population of 16,095 at the 2000 census, is the county seat of Vance County, North Carolina, United States. The city was named in honor of former North Carolina Supreme Court Chief Justice Leonard Henderson, who lived nearby and was a friend of early settler Lewis Reavis.
Duncan is a city and county seat of Stephens County, Oklahoma, United States. The population was 23,431 at the 2010 census. The Chisholm Trail Crossing through Duncan's US-81
Homefacts City Report. Duncannon is located in Perry County, PA. The population is 1,578, making Duncannon the 2nd largest city in Perry County. There are 3 public schools in Duncannon with an average Homefacts rating of C. The total crime rate for Duncannon is low, and there are 12 registered sex offenders residing in the city.