This configuration represents all of the counties for a given state.  Typically the jurisdiction's state is the default for which the counties are listed.  This data is manage by PRISM professionals.  However, if you wish to augment this information you can.

Deleting a County that is assigned to a vendor is not possible if there are any data associated with it. Unchecking the visible box will prohibit the County from being shown in any PRISM list.  It is available for importing.

Note: It is important that this configuration reflects the gender of imported data.