Al Hartmann  |  The Salt Lake Tribune
Some of the 1,600 data conversion operators "coders" work at Salt Lake City's Remote Encoding Center where U.S. Postal Service assign a barcode to handwritten and poorly printed addresses. What was once done at more than 50 centers around the nation now falls exclusively to 1,600 employees in  Salt Lake City.  Last year, they keyed in more than 2 billion codes. In 2014, each worker processed an average of 6,500 images each day, a number that is likely largely now due to a taxing deal with Amazon and a need for even greater efficiency to handle the volume assigned to a now-shuttered Wichita center.