Tuesday, August 13, 2013

Mr. Zip turns 50

In 1963 the Post Office Department started the Zone Improvement Plan (ZIP). The cartoon character Mr. Zip was retired in 1983 when ZIP+4 was implemented. Today there are a total of 41,810 ZIP codes. California has the most with 2,602 and Rhode Island has the fewest with just 90. The lowest code number is 00501 for the IRS and the highest is 99950 in Ketchikan, AK.