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PM-10 (1987) Maintenance Area (Redesignated from Nonattainment) Summary

Data is current as of August 31, 2021


Classification Number of Areas Number of Counties 2010 Population
Serious 6 13 22,149,374
Moderate 59 53 11,359,965
Nonattainment 0 0 0
SUBTOTAL 65 66 33,509,339
 
GRAND TOTAL 65 66 33,509,339

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