Experts say thieves have been targeting mail carriers to get an arrow key, which allows carriers to open any mailbox in a given zip code.

On Your Side Investigates uncovered an increase in criminals stealing postal keys to unlock your mailbox and steal your identity.

Some municipalities have more than one ZIP code, but a bill in Congress would clean up the dilemma for several communities in ...

USPS changes are aimed to cut costs. Will it take longer for your mail, packages to be delivered? What we know about new delivery standards.

New data from the Postal Service's Office of the Inspector General reveals 56 complaints of internal mail theft in the ...