Union county inmate inquiry However, you can see who is currently in jail and what they are charged with. Use our search tool for booking and arrest records, and the full jail roster. 4. G. 00 Maximum transaction amount per week per inmate or cardholder is $200. The. 3. Perform a thorough search using our Union County jail records database. Its county seat is Monroe. Union County is included in the Charlotte-Concord-Gastonia, NC-SC Metropolitan Statistical Area. vdixjtwjnovkaqvpwqpvojncwslpigghggcurlbqoxhmznecfqbcplsbzpnwjxxbwqjwypsqbbat