Concordia

Concordia is a town in the U.S. state of Kansas. It's the county seat of Cloud County, and had a population of 5,099 as of 2017.

Season 10
In The Prisoner, Sam sends Crowley a text message, with an address in Concordia, as Dean to trap Crowley and attempt to kill him. Sam gives a hex bag to Crowley so Rowena MacLeod can kill him as part of their deal. However, Crowley gets the upper hand and destroys the hex bag and throws Sam into a wall, letting him know that the only reason hes still alive is because Crowley allowed it. This then puts a clink in the alliance between the Winchesters and Crowley.

Appearances

 * Season 10
 * The Prisoner