Albert Barnes Commentary Joshua 21:20-26

"And the families of the children of Kohath, the Levites, even the rest of the children of Kohath, they had the cities of their lot out of the tribe of Ephraim. And they gave them Shechem with its suburbs in the hill-country of Ephraim, the city of refuge for the manslayer, and Gezer with its suburbs, and Kibzaim with its suburbs, and Beth-horon with its suburbs; four cities. And out of the tribe of Dan, Elteke with its suburbs, Gibbethon with its suburbs, Aijalon with its suburbs, Gath-rimmon with its suburbs; four cities. And out of the half-tribe of Manasseh, Taanach with its suburbs, and Gath-rimmon with its suburbs; two cities. All the cities of the families of the rest of the children of Kohath were ten with their suburbs." — Joshua 21:20-26 (ASV)

Of the cities of the non-priestly Kohathites, for Kibzaim we find Jokmeam (1 Chronicles 6:68). This is perhaps another name for the same place, since both names may be derived from roots having a similar meaning; and for Gath-rimmon (1 Chronicles 6:70), Bileam is given, and probably correctly, as it seems Gath-rimmon was repeated inadvertently from the preceding verse. Bileam is simply another form of Ibleam (Joshua 17:11).