The Tax Assesor's Office at City Hall, 280 Grove Street, has tax records, block and lot numbers, and maps. The main phone number there is 201-547-5131.

The Hudson County government maintains records of deeds, mortgages, and liens at 595 Newark Avenue in the Register's Office. This is about three blocks from the Summit Avenue exit of the Journal Square Transportation Center. The phone number is 201-795-6577.

The Hudson County government also maintains tax records at 567 Pavonia Avenue. This is one block away from the 595 Newark Avenue Building. The phone number is 201-795-6588.