{
  63  => { CT => 39, NY => 1 },
  205 => { DC => 49, VA => 1 },
  739 => { OK => 14, TX => 1 },
  834 => { ID => 44, WY => 1 },
}

##</code><code>##

https://www.downloadexcelfiles.com/sites/default/files/docs/usazipcode-1512j.csv