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PM-10 (1987) Nonattainment Area Summary

As of September 22, 2016
Classification Number of Areas Number of Counties 2010 Population
Serious 5 6 4,390,967
Moderate 32 26 4,744,324
SUBTOTAL 37 31 9,135,291
GRAND TOTAL 37 31 9,135,291

County subtotals and grand totals may not equal sum of parts. Part counties are only counted one time within groupings. Multi-state nonattainment areas are not considered maintenance areas until all states in the area have been redesignated

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