1 Chronicles 6:54

Now these are their dwelling places throughout their castles in their coasts, of the sons of Aaron, of the families of the Kohathites: for theirs was the lot.

Cross-reference

Numbers 35:1-8 gives the original command to assign cities to Levites—fulfilled in the settlement list here.

Joshua 21:3-8 records the actual allocation of Levitical cities—parallel to this summary of their settlements.

Joshua 21:4 records the same lot for Kohathite priests giving 13 cities, directly parallel to this list.

Joshua 21:5 continues with the rest of Kohath's cities, parallel to the Chronicles allocation.

Numbers 35:7 commands 48 Levitical cities total, providing the law behind this allocation.

Joshua 14:4 explains why Levites received cities instead of tribal land, giving context for this list.