List of cities from CARLTON's county

BARNUM	CARLTON
CLOQUET	CROMWELL
ESKO	HOLYOKE
KETTLE RIVER	KNIFE FALLS
MAHTOWA	MOOSE LAKE
NICKERSON	SAWYER
SCANLON	SKELTON
WRENSHALL	WRIGHT

What is ZIP Code?

ZIP codes are a system of postal codes used by the United States Postal Service (USPS) since 1963. The term ZIP, an acronym for Zone Improvement Plan,[1] is properly written in capital letters and was chosen to suggest that the mail travels more efficiently, and therefore more quickly, when senders use the code in the postal address. The basic format consists of five decimal numerical digits. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the ZIP code, a hyphen, and four more digits that determine a more precise location than the ZIP code alone. The term ZIP code was originally registered as a servicemark (a type of trademark) by the U.S. Postal Service, but its registration has since expired