Here is a list of towns in the uk that begin with k , you can place your council or housing association exchange in the one where you live.

Ukhomeswap homepage is located here

keighley
kelso
kendal
kenilworth
keswick
kettering
kidderminster
kilbirnie
killin
kilmacolm
kilmarnock
kings langley
king's lynn
kingston upon thames
kingswinford
kingussie
kirkby stephen
kirkcaldy
kirriemuir
knutsford
kyle
kyleakin