Census division,Homes (million),"Central AC, %","No AC, %","Central AC 10+ years old, %","Central AC 15+ years old, %",Average cooling degree days (30-year normal)
West North Central,8.5,78.2,5.3,52.5,30.5,1012
New England,5.88,28.2,15.4,50.4,30.4,575
Pacific,18.51,47.7,31.7,49.4,29.1,969
East North Central,18.55,72.4,7.3,49.7,28.7,805
Middle Atlantic,16.04,43.8,9.4,48.3,28.0,851
Mountain North,4.62,60.4,18.3,46.6,24.4,711
Mountain South,4.6,78.2,7.9,38.7,19.7,2827
East South Central,7.38,83.3,6.3,38.6,19.5,1657
South Atlantic,24.84,85.2,6.0,38.8,18.0,2158
West South Central,14.62,81.3,5.3,38.8,17.7,2606