contiguous

very close or connected in space or time; "contiguous events"; "immediate contact"; "the immediate vicinity"; "the immediate past"

connecting without a break; within a common boundary; "the 48 conterminous states"; "the contiguous 48 states"

having a common boundary or edge; abutting; touching; "Rhode Island has two bordering states; Massachusetts and Conncecticut"; "the side of Germany conterminous with France"; "Utah and the contiguous state of Idaho"; "neighboring cities"