Workers in metropolitan areas earned an average of $15.73 per hour in 1997. Workers in non-metropolitan areas averaged $11.84.
White-collar occupations generally recorded higher hourly earnings than blue-collar or service occupations. In metropolitan areas, wages in all three occupations were higher than their counterparts in non-metropolitan areas.
White-collar workers averaged $19.07 in metropolitan areas and $15.15 in non-metropolitan areas. Among blue-collar workers, the corresponding figures were $12.78 and $10.74. Service workers in metropolitan areas received $9.40 per hour while those in non-metropolitan areas received $8.00.
Bureau of Labor Statistics, U.S. Department of Labor, The Economics Daily, Pay gap crosses occupational lines at https://www.bls.gov/opub/ted/2000/jul/wk5/art05.htm (visited August 17, 2022).