For the 48 conterminous states, the geographic center is near Lebanon, Kansas.
If you take Alaska into account, the geographic center of the United States becomes a point near Castle Rock, South Dakota.
In 1918 a monument was erected at the site to mark the spot.
In 2000, the population of Lebanon, Kansas was 303.
On October 2, 2006, a local farmer Randall Warner in Lebanon was featured in a New York Times story about the problems faced by the community.