304 cities sorted by air quality (best first)
| # | City | State | AQI | Good Days | PM2.5 | Pollutant |
|---|---|---|---|---|---|---|
| 1 | Honolulu | HI | 28 | 88% | 4.5 | PM2.5 |
| 2 | Augusta | ME | 30 | 85% | 5 | PM2.5 |
| 3 | Bangor | ME | 30 | 85% | 5.2 | PM2.5 |
| 4 | Hilo | HI | 30 | 86% | 5 | PM2.5 |
| 5 | Juneau | AK | 30 | 85% | 5 | PM2.5 |
| 6 | Montpelier | VT | 30 | 84% | 5.2 | PM2.5 |
| 7 | Burlington | VT | 32 | 82% | 5.8 | PM2.5 |
| 8 | Portland | ME | 32 | 82% | 5.5 | PM2.5 |
| 9 | Bismarck | ND | 34 | 80% | 5.5 | PM2.5 |
| 10 | Concord | NH | 34 | 80% | 5.8 | PM2.5 |
| 11 | Duluth | MN | 34 | 80% | 5.8 | PM2.5 |
| 12 | Fargo | ND | 34 | 80% | 5.8 | PM2.5 |
| 13 | Pierre | SD | 34 | 80% | 5.5 | PM2.5 |
| 14 | Anchorage | AK | 35 | 78% | 6.2 | PM2.5 |
| 15 | Cheyenne | WY | 35 | 78% | 6 | PM2.5 |
| 16 | Cape Coral | FL | 36 | 78% | 6 | Ozone |
| 17 | Manchester | NH | 36 | 78% | 6 | PM2.5 |
| 18 | Port St. Lucie | FL | 36 | 78% | 6 | Ozone |
| 19 | Rapid City | SD | 36 | 78% | 5.8 | PM2.5 |
| 20 | Rochester | MN | 36 | 78% | 6 | PM2.5 |
| 21 | Santa Cruz | CA | 36 | 78% | 6 | PM2.5 |
| 22 | Sarasota | FL | 36 | 78% | 6 | Ozone |
| 23 | Sioux Falls | SD | 36 | 78% | 6 | PM2.5 |
| 24 | Bellingham | WA | 38 | 76% | 6.5 | PM2.5 |
| 25 | Casper | WY | 38 | 76% | 6.5 | Ozone |
| 26 | Daytona Beach | FL | 38 | 76% | 6.2 | Ozone |
| 27 | Flagstaff | AZ | 38 | 76% | 6.5 | PM2.5 |
| 28 | Fort Lauderdale | FL | 38 | 74% | 6.5 | PM2.5 |
| 29 | Gainesville | FL | 38 | 76% | 6.2 | Ozone |
| 30 | Hialeah | FL | 38 | 74% | 6.5 | PM2.5 |
| 31 | Madison | WI | 38 | 76% | 6.5 | PM2.5 |
| 32 | Miami | FL | 38 | 75% | 6.5 | PM2.5 |
| 33 | Myrtle Beach | SC | 38 | 76% | 6.2 | Ozone |
| 34 | Olympia | WA | 38 | 76% | 6.5 | PM2.5 |
| 35 | Tallahassee | FL | 38 | 76% | 6.2 | Ozone |
| 36 | Virginia Beach | VA | 38 | 76% | 6.5 | Ozone |
| 37 | Cedar Falls | IA | 40 | 70% | 6.8 | Ozone |
| 38 | Charleston | SC | 40 | 70% | 7 | Ozone |
| 39 | Chesapeake | VA | 40 | 70% | 7 | Ozone |
| 40 | Fayetteville | AR | 40 | 70% | 6.8 | Ozone |
| 41 | Hampton | VA | 40 | 70% | 7 | Ozone |
| 42 | Lakeland | FL | 40 | 70% | 7 | Ozone |
| 43 | Orlando | FL | 40 | 70% | 7 | Ozone |
| 44 | Pensacola | FL | 40 | 70% | 6.8 | Ozone |
| 45 | Salinas | CA | 40 | 70% | 7 | PM2.5 |
| 46 | Santa Fe | NM | 40 | 70% | 7 | Ozone |
| 47 | St. Petersburg | FL | 40 | 70% | 6.8 | PM2.5 |
| 48 | Wilmington | NC | 40 | 70% | 6.8 | Ozone |
| 49 | Asheville | NC | 42 | 68% | 7.2 | Ozone |
| 50 | Bend | OR | 42 | 68% | 7.5 | PM2.5 |
| 51 | Biloxi | MS | 42 | 68% | 7 | Ozone |
| 52 | Bozeman | MT | 42 | 68% | 7.5 | PM2.5 |
| 53 | Durango | CO | 42 | 68% | 7.5 | PM2.5 |
| 54 | Elko | NV | 42 | 68% | 7.2 | PM2.5 |
| 55 | Great Falls | MT | 42 | 68% | 7.2 | PM2.5 |
| 56 | Green Bay | WI | 42 | 68% | 7 | PM2.5 |
| 57 | Gulfport | MS | 42 | 68% | 7 | Ozone |
| 58 | Hartford | CT | 42 | 68% | 7.2 | Ozone |
| 59 | Idaho Falls | ID | 42 | 68% | 7 | PM2.5 |
| 60 | Jacksonville | FL | 42 | 67% | 7.2 | Ozone |
| 61 | Minneapolis | MN | 42 | 68% | 7 | PM2.5 |
| 62 | Norfolk | VA | 42 | 68% | 7.2 | Ozone |
| 63 | Prescott | AZ | 42 | 68% | 7 | PM2.5 |
| 64 | Santa Barbara | CA | 42 | 68% | 7.2 | Ozone |
| 65 | Seattle | WA | 42 | 68% | 7.2 | PM2.5 |
| 66 | St. Paul | MN | 42 | 68% | 7 | PM2.5 |
| 67 | Tampa | FL | 42 | 67% | 7.2 | Ozone |
| 68 | Twin Falls | ID | 42 | 68% | 7 | PM2.5 |
| 69 | Albany | NY | 44 | 66% | 7.5 | PM2.5 |
| 70 | Ann Arbor | MI | 44 | 66% | 7.5 | PM2.5 |
| 71 | Athens | GA | 44 | 66% | 7.5 | Ozone |
| 72 | Bloomington | IL | 44 | 66% | 7.2 | Ozone |
| 73 | Cambridge | MA | 44 | 66% | 7.2 | PM2.5 |
| 74 | Cedar Rapids | IA | 44 | 66% | 7.2 | Ozone |
| 75 | Champaign | IL | 44 | 66% | 7.2 | Ozone |
| 76 | Durham | NC | 44 | 66% | 7.5 | Ozone |
| 77 | Greenville | NC | 44 | 66% | 7.5 | Ozone |
| 78 | Jonesboro | AR | 44 | 66% | 7.5 | Ozone |
| 79 | Lincoln | NE | 44 | 66% | 7.2 | Ozone |
| 80 | Lynchburg | VA | 44 | 66% | 7.5 | Ozone |
| 81 | Oceanside | CA | 44 | 66% | 7.5 | Ozone |
| 82 | Pooler | GA | 44 | 66% | 7.5 | Ozone |
| 83 | Salem | OR | 44 | 66% | 7.5 | PM2.5 |
| 84 | Springfield | MO | 44 | 66% | 7.5 | Ozone |
| 85 | Syracuse | NY | 44 | 66% | 7.5 | PM2.5 |
| 86 | Tacoma | WA | 44 | 66% | 7.5 | PM2.5 |
| 87 | Warwick | RI | 44 | 66% | 7.5 | Ozone |
| 88 | Worcester | MA | 44 | 66% | 7.2 | PM2.5 |
| 89 | Boston | MA | 45 | 65% | 7.5 | PM2.5 |
| 90 | Des Moines | IA | 45 | 64% | 7.5 | Ozone |
| 91 | Portland | OR | 45 | 64% | 7.8 | PM2.5 |
| 92 | Providence | RI | 45 | 64% | 7.8 | Ozone |
| 93 | Raleigh | NC | 45 | 64% | 7.8 | Ozone |
| 94 | Santa Maria | CA | 45 | 64% | 7.5 | PM2.5 |
| 95 | Savannah | GA | 45 | 64% | 7.8 | Ozone |
| 96 | Annapolis | MD | 46 | 64% | 7.8 | Ozone |
| 97 | Austin | TX | 46 | 64% | 7.8 | Ozone |
| 98 | Boulder | CO | 46 | 64% | 7.8 | Ozone |
| 99 | Davenport | IA | 46 | 64% | 7.8 | Ozone |
| 100 | Eugene | OR | 46 | 64% | 8 | PM2.5 |
| 101 | Fayetteville | NC | 46 | 64% | 7.8 | Ozone |
| 102 | Frankfort | KY | 46 | 64% | 7.8 | Ozone |
| 103 | Grand Rapids | MI | 46 | 64% | 7.8 | PM2.5 |
| 104 | Greenville | SC | 46 | 64% | 7.8 | Ozone |
| 105 | Huntsville | AL | 46 | 64% | 7.8 | Ozone |
| 106 | Jefferson City | MO | 46 | 64% | 7.8 | Ozone |
| 107 | Lansing | MI | 46 | 64% | 7.8 | PM2.5 |
| 108 | Lowell | MA | 46 | 64% | 7.8 | PM2.5 |
| 109 | New Haven | CT | 46 | 64% | 7.8 | Ozone |
| 110 | Norman | OK | 46 | 64% | 7.8 | Ozone |
| 111 | Roanoke | VA | 46 | 64% | 7.8 | Ozone |
| 112 | Rochester | NY | 46 | 64% | 7.8 | PM2.5 |
| 113 | Springfield | MA | 46 | 64% | 7.8 | Ozone |
| 114 | Stamford | CT | 46 | 64% | 7.8 | Ozone |
| 115 | Topeka | KS | 46 | 64% | 7.5 | Ozone |
| 116 | Tyler | TX | 46 | 64% | 7.8 | Ozone |
| 117 | Vancouver | WA | 46 | 64% | 7.8 | PM2.5 |
| 118 | Alexandria | VA | 48 | 62% | 8 | Ozone |
| 119 | Amarillo | TX | 48 | 62% | 8 | PM10 |
| 120 | Arlington | VA | 48 | 62% | 8.2 | Ozone |
| 121 | Billings | MT | 48 | 62% | 8.5 | PM2.5 |
| 122 | Bridgeport | CT | 48 | 62% | 8 | Ozone |
| 123 | Brownsville | TX | 48 | 62% | 7.8 | PM10 |
| 124 | Buffalo | NY | 48 | 62% | 8 | PM2.5 |
| 125 | Carson City | NV | 48 | 62% | 8.5 | PM2.5 |
| 126 | Clarksville | TN | 48 | 62% | 8 | Ozone |
| 127 | Colorado Springs | CO | 48 | 62% | 8 | Ozone |
| 128 | Columbia | SC | 48 | 62% | 8 | Ozone |
| 129 | Columbus | GA | 48 | 62% | 8.2 | Ozone |
| 130 | Dover | DE | 48 | 62% | 8 | Ozone |
| 131 | Erie | PA | 48 | 62% | 8 | PM2.5 |
| 132 | Fort Wayne | IN | 48 | 62% | 8.2 | PM2.5 |
| 133 | Greensboro | NC | 48 | 62% | 8.2 | Ozone |
| 134 | Helena | MT | 48 | 60% | 8.8 | PM2.5 |
| 135 | Jackson | MS | 48 | 62% | 8.2 | Ozone |
| 136 | Las Cruces | NM | 48 | 62% | 8 | PM10 |
| 137 | Lexington | KY | 48 | 62% | 8.2 | Ozone |
| 138 | Lubbock | TX | 48 | 62% | 8 | PM10 |
| 139 | McAllen | TX | 48 | 62% | 7.8 | PM10 |
| 140 | Milwaukee | WI | 48 | 60% | 8.5 | PM2.5 |
| 141 | Montgomery | AL | 48 | 62% | 8.2 | Ozone |
| 142 | Omaha | NE | 48 | 62% | 8 | Ozone |
| 143 | Overland Park | KS | 48 | 62% | 8 | Ozone |
| 144 | Oxnard | CA | 48 | 62% | 8.2 | Ozone |
| 145 | Rockford | IL | 48 | 62% | 8.2 | PM2.5 |
| 146 | San Francisco | CA | 48 | 62% | 8.2 | PM2.5 |
| 147 | Santa Rosa | CA | 48 | 62% | 8.5 | PM2.5 |
| 148 | South Bend | IN | 48 | 62% | 8.2 | PM2.5 |
| 149 | Springfield | IL | 48 | 62% | 8 | Ozone |
| 150 | St. George | UT | 48 | 62% | 8 | Ozone |
| 151 | Tuscaloosa | AL | 48 | 62% | 8.2 | Ozone |
| 152 | Vallejo | CA | 48 | 62% | 8.5 | PM2.5 |
| 153 | Wichita | KS | 48 | 62% | 8 | Ozone |
| 154 | Winston-Salem | NC | 48 | 62% | 8 | Ozone |
| 155 | Augusta | GA | 50 | 58% | 8.8 | Ozone |
| 156 | Escondido | CA | 50 | 58% | 8.8 | Ozone |
| 157 | Fort Collins | CO | 50 | 58% | 8.5 | Ozone |
| 158 | Fremont | CA | 50 | 60% | 8.5 | Ozone |
| 159 | Frisco | TX | 50 | 58% | 8.5 | Ozone |
| 160 | Harrisburg | PA | 50 | 58% | 8.8 | Ozone |
| 161 | Kansas City | MO | 50 | 58% | 8.8 | Ozone |
| 162 | Little Rock | AR | 50 | 58% | 8.8 | Ozone |
| 163 | Macon | GA | 50 | 58% | 8.5 | Ozone |
| 164 | McKinney | TX | 50 | 58% | 8.5 | Ozone |
| 165 | Mobile | AL | 50 | 58% | 8.5 | Ozone |
| 166 | Murfreesboro | TN | 50 | 58% | 8.5 | Ozone |
| 167 | Naperville | IL | 50 | 58% | 8.5 | Ozone |
| 168 | Oakland | CA | 50 | 60% | 8.8 | PM2.5 |
| 169 | Oklahoma City | OK | 50 | 58% | 8.5 | Ozone |
| 170 | Peoria | IL | 50 | 58% | 8.5 | PM2.5 |
| 171 | Richmond | VA | 50 | 58% | 8.5 | Ozone |
| 172 | Scranton | PA | 50 | 58% | 8.8 | PM2.5 |
| 173 | Shreveport | LA | 50 | 58% | 8.5 | Ozone |
| 174 | Spokane | WA | 50 | 56% | 8.8 | PM2.5 |
| 175 | Waco | TX | 50 | 58% | 8.5 | Ozone |
| 176 | Albuquerque | NM | 52 | 56% | 8.5 | Ozone |
| 177 | Allentown | PA | 52 | 56% | 9 | PM2.5 |
| 178 | Aurora | IL | 52 | 56% | 9 | Ozone |
| 179 | Boise | ID | 52 | 55% | 9 | PM2.5 |
| 180 | Charleston | WV | 52 | 56% | 9.2 | PM2.5 |
| 181 | Charlotte | NC | 52 | 55% | 9 | Ozone |
| 182 | Chattanooga | TN | 52 | 56% | 9 | Ozone |
| 183 | Columbus | OH | 52 | 55% | 9.2 | Ozone |
| 184 | Concord | CA | 52 | 56% | 9 | Ozone |
| 185 | Corpus Christi | TX | 52 | 56% | 8.5 | Ozone |
| 186 | Dayton | OH | 52 | 56% | 9.2 | Ozone |
| 187 | Fairbanks | AK | 52 | 56% | 10.5 | PM2.5 |
| 188 | Kennewick | WA | 52 | 56% | 9 | PM2.5 |
| 189 | Lakewood | CO | 52 | 56% | 8.8 | Ozone |
| 190 | Plano | TX | 52 | 56% | 8.8 | Ozone |
| 191 | Pueblo | CO | 52 | 56% | 9 | PM2.5 |
| 192 | Reno | NV | 52 | 55% | 9.2 | PM2.5 |
| 193 | San Antonio | TX | 52 | 56% | 8.5 | Ozone |
| 194 | San Diego | CA | 52 | 58% | 9.1 | Ozone |
| 195 | Sparks | NV | 52 | 55% | 9 | PM2.5 |
| 196 | Terre Haute | IN | 52 | 56% | 9 | PM2.5 |
| 197 | Toledo | OH | 52 | 56% | 9 | PM2.5 |
| 198 | Trenton | NJ | 52 | 56% | 9 | PM2.5 |
| 199 | Tulsa | OK | 52 | 56% | 9 | Ozone |
| 200 | Washington DC | DC | 52 | 55% | 9.2 | Ozone |
| 201 | Waukegan | IL | 52 | 56% | 9 | PM2.5 |
| 202 | Wilmington | DE | 52 | 55% | 9.2 | PM2.5 |
| 203 | Akron | OH | 54 | 54% | 9.5 | PM2.5 |
| 204 | Flint | MI | 54 | 54% | 9.5 | PM2.5 |
| 205 | Hoboken | NJ | 54 | 54% | 9.5 | PM2.5 |
| 206 | Irving | TX | 54 | 54% | 9.2 | Ozone |
| 207 | Jersey City | NJ | 54 | 54% | 9.5 | PM2.5 |
| 208 | Joliet | IL | 54 | 54% | 9.2 | PM2.5 |
| 209 | Knoxville | TN | 54 | 54% | 9.5 | Ozone |
| 210 | Nampa | ID | 54 | 54% | 9.5 | PM2.5 |
| 211 | Paterson | NJ | 54 | 54% | 9.5 | PM2.5 |
| 212 | Reading | PA | 54 | 54% | 9.5 | PM2.5 |
| 213 | Thornton | CO | 54 | 54% | 9 | Ozone |
| 214 | Yonkers | NY | 54 | 54% | 9.2 | PM2.5 |
| 215 | Cincinnati | OH | 55 | 52% | 9.8 | Ozone |
| 216 | Evansville | IN | 55 | 52% | 9.8 | PM2.5 |
| 217 | Garland | TX | 55 | 52% | 9.2 | Ozone |
| 218 | Huntington | WV | 55 | 52% | 10 | PM2.5 |
| 219 | Indianapolis | IN | 55 | 52% | 9.8 | PM2.5 |
| 220 | Irvine | CA | 55 | 52% | 9.2 | Ozone |
| 221 | Laredo | TX | 55 | 52% | 9 | PM10 |
| 222 | Louisville | KY | 55 | 52% | 9.8 | PM2.5 |
| 223 | Medford | OR | 55 | 52% | 10 | PM2.5 |
| 224 | Memphis | TN | 55 | 52% | 9.8 | PM2.5 |
| 225 | Midland | TX | 55 | 52% | 9.5 | PM10 |
| 226 | Missoula | MT | 55 | 52% | 10.5 | PM2.5 |
| 227 | Nashville | TN | 55 | 52% | 9.5 | Ozone |
| 228 | New Orleans | LA | 55 | 53% | 9.5 | Ozone |
| 229 | New York City | NY | 55 | 52% | 9.5 | PM2.5 |
| 230 | Portland | TX | 55 | 52% | 9.5 | Ozone |
| 231 | San Jose | CA | 55 | 52% | 9.5 | Ozone |
| 232 | Arlington | TX | 56 | 52% | 9.2 | Ozone |
| 233 | Aurora | CO | 56 | 52% | 9.2 | Ozone |
| 234 | Gonzales | LA | 56 | 52% | 9.8 | Ozone |
| 235 | Atlanta | GA | 58 | 50% | 10.2 | Ozone |
| 236 | Baltimore | MD | 58 | 50% | 10 | PM2.5 |
| 237 | Baton Rouge | LA | 58 | 50% | 10.2 | Ozone |
| 238 | Chicago | IL | 58 | 50% | 10 | PM2.5 |
| 239 | Chico | CA | 58 | 50% | 10.5 | PM2.5 |
| 240 | Cleveland | OH | 58 | 50% | 10.5 | PM2.5 |
| 241 | Dallas | TX | 58 | 50% | 9.8 | Ozone |
| 242 | Denver | CO | 58 | 50% | 9.5 | Ozone |
| 243 | Fort Worth | TX | 58 | 50% | 9.5 | Ozone |
| 244 | Newark | NJ | 58 | 50% | 10.5 | PM2.5 |
| 245 | Philadelphia | PA | 58 | 50% | 10.2 | PM2.5 |
| 246 | Roseville | CA | 58 | 50% | 9.8 | Ozone |
| 247 | Simi Valley | CA | 58 | 50% | 10 | Ozone |
| 248 | St. Louis | MO | 58 | 50% | 10.5 | PM2.5 |
| 249 | Tucson | AZ | 58 | 50% | 9.8 | PM10 |
| 250 | Yakima | WA | 58 | 50% | 10.5 | PM2.5 |
| 251 | Birmingham | AL | 60 | 48% | 10.8 | PM2.5 |
| 252 | Elk Grove | CA | 60 | 48% | 10.2 | Ozone |
| 253 | Henderson | NV | 60 | 48% | 10.5 | Ozone |
| 254 | Lake Charles | LA | 60 | 48% | 10.5 | Ozone |
| 255 | North Las Vegas | NV | 60 | 48% | 10.5 | Ozone |
| 256 | Beaumont | TX | 62 | 46% | 10.8 | Ozone |
| 257 | Detroit | MI | 62 | 46% | 11.2 | PM2.5 |
| 258 | Lancaster | CA | 62 | 46% | 10.8 | Ozone |
| 259 | Las Vegas | NV | 62 | 46% | 10.8 | Ozone |
| 260 | Palmdale | CA | 62 | 46% | 10.8 | Ozone |
| 261 | Pittsburgh | PA | 62 | 46% | 11.8 | PM2.5 |
| 262 | Sacramento | CA | 62 | 48% | 10.5 | Ozone |
| 263 | Scottsdale | AZ | 62 | 46% | 10.5 | Ozone |
| 264 | Surprise | AZ | 64 | 44% | 11 | PM10 |
| 265 | Chandler | AZ | 65 | 42% | 11 | PM10 |
| 266 | El Paso | TX | 65 | 42% | 11.2 | PM10 |
| 267 | Gary | IN | 65 | 42% | 12 | PM2.5 |
| 268 | Gilbert | AZ | 65 | 44% | 11 | PM10 |
| 269 | Provo | UT | 65 | 44% | 11.5 | PM2.5 |
| 270 | Redding | CA | 65 | 42% | 12.5 | PM2.5 |
| 271 | Victorville | CA | 65 | 42% | 11.5 | PM10 |
| 272 | Ogden | UT | 66 | 42% | 11.8 | PM2.5 |
| 273 | Peoria | AZ | 66 | 42% | 11.5 | PM10 |
| 274 | Tempe | AZ | 66 | 42% | 11.5 | PM10 |
| 275 | Glendale | AZ | 68 | 40% | 12 | PM10 |
| 276 | Houston | TX | 68 | 40% | 11.5 | Ozone |
| 277 | Mesa | AZ | 68 | 40% | 11.8 | PM10 |
| 278 | Pasadena | CA | 68 | 40% | 12 | Ozone |
| 279 | Salt Lake City | UT | 68 | 42% | 12 | PM2.5 |
| 280 | Santa Clarita | CA | 70 | 38% | 12 | Ozone |
| 281 | Yuma | AZ | 70 | 38% | 12 | PM10 |
| 282 | El Monte | CA | 72 | 36% | 12.8 | Ozone |
| 283 | Long Beach | CA | 72 | 36% | 13 | PM2.5 |
| 284 | Phoenix | AZ | 72 | 38% | 12.5 | PM10 |
| 285 | Corona | CA | 76 | 34% | 13 | Ozone |
| 286 | Rancho Cucamonga | CA | 76 | 34% | 13 | Ozone |
| 287 | Los Angeles | CA | 78 | 32% | 14.2 | Ozone |
| 288 | Ontario | CA | 78 | 32% | 13.5 | Ozone |
| 289 | Pomona | CA | 78 | 32% | 13.5 | Ozone |
| 290 | Lodi | CA | 80 | 28% | 14.5 | PM2.5 |
| 291 | Modesto | CA | 80 | 28% | 14.8 | PM2.5 |
| 292 | Moreno Valley | CA | 80 | 28% | 14.5 | Ozone |
| 293 | Fontana | CA | 82 | 26% | 15 | PM2.5 |
| 294 | San Bernardino | CA | 82 | 26% | 15.5 | Ozone |
| 295 | Stockton | CA | 82 | 26% | 15.5 | PM2.5 |
| 296 | Turlock | CA | 82 | 26% | 15.5 | PM2.5 |
| 297 | Merced | CA | 84 | 24% | 16 | PM2.5 |
| 298 | Clovis | CA | 85 | 24% | 16 | PM2.5 |
| 299 | Madera | CA | 86 | 24% | 16.5 | PM2.5 |
| 300 | Hanford | CA | 88 | 22% | 17 | PM2.5 |
| 301 | Riverside | CA | 88 | 23% | 15.8 | Ozone |
| 302 | Fresno | CA | 89 | 22% | 16.8 | PM2.5 |
| 303 | Visalia | CA | 90 | 20% | 17.2 | PM2.5 |
| 304 | Bakersfield | CA | 95 | 18% | 18.5 | PM2.5 |