Construction industry
Highest concentration: Tanaina, Alaska (17 percent) *
Lowest concentration: Cambridge, Mass. (1.1 percent)
* = Tanaina is technically a census-designated place, not a city.
Highest concentration: Tanaina, Alaska (17 percent) *
Lowest concentration: Cambridge, Mass. (1.1 percent)
* = Tanaina is technically a census-designated place, not a city.
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