Disclosed herein are system, method, and computer program product embodiments for assignment level address cleansing based on a minimum assignment level. An embodiment operates by receiving an address from a client device at an address cleansing system. The address cleansing system then parses the address into a plurality entry fields represent different geographic region fields. The address cleansing system then compares the entry fields to reference address data to determine an assignment level of the address. The assignment level indicates the level of address validation achieved based on the comparison to the reference address data. The assignment level is then compared to a minimum assignment level. If the assignment level is equal to or greater than the minimum assignment level, the address is cleansed using the reference address data. If not, the address is not cleansed.