Select Congressional District to add the congressional district number to an address record.

Use congressional district numbers to understand the geographical distribution of a large record set. Some five-digit ZIP Codes lie within congressional districts, while some cross district boundaries. All ZIP+4 Codes lie within congressional districts.

Direct mail and government agencies can use congressional district numbers to verify that mail items reach addressees in particular districts.

The following table provides the location and default precision of the Congressional District port:

The congressional district number is a two-digit number that identifies a congressional district within a state. You can view a list of congressional districts on the following site: