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8-Hour Ozone (1997) Nonattainment Areas by State/County/Area - NAAQS Revoked

Data is current as of June 30, 2018
The 1997 8-hour Ozone NAAQS was revoked effective April 6, 2015 (80 FR 12264).

Click underlined column heading to change report order
State  County  Area Name  County NA
Whole/Part
 
2010
Population
 
State/
County FIPS
click link for
partial county description
whole or
partial county population
CALIFORNIA Alameda County San Francisco Bay Area, CA Whole 1,510,271 06/001
CALIFORNIA Amador County Amador and Calaveras Cos. (Central Mountain Cos.), CA Whole 38,091 06/005
CALIFORNIA Butte County Chico, CA Whole 220,000 06/007
CALIFORNIA Calaveras County Amador and Calaveras Cos. (Central Mountain Cos.), CA Whole 45,578 06/009
CALIFORNIA Contra Costa County San Francisco Bay Area, CA Whole 1,049,025 06/013
CALIFORNIA El Dorado County Sacramento Metro, CA Part 151,823 06/017
CALIFORNIA Fresno County San Joaquin Valley, CA Whole 930,450 06/019
CALIFORNIA Imperial County Imperial Co, CA Whole 174,528 06/025
CALIFORNIA Kern County Kern Co (Eastern Kern), CA Part 95,314 06/029
CALIFORNIA Kern County San Joaquin Valley, CA Part 710,558 06/029
CALIFORNIA Kings County San Joaquin Valley, CA Whole 152,982 06/031
CALIFORNIA Los Angeles County Los Angeles-San Bernardino Cos. (W Mojave Desert), CA Part 378,570 06/037
CALIFORNIA Los Angeles County Los Angeles-South Coast Air Basin, CA Part 9,441,036 06/037
CALIFORNIA Madera County San Joaquin Valley, CA Whole 150,865 06/039
CALIFORNIA Marin County San Francisco Bay Area, CA Whole 252,409 06/041
CALIFORNIA Mariposa County Mariposa and Tuolumne Cos (Southern Mtn), CA Whole 18,251 06/043
CALIFORNIA Merced County San Joaquin Valley, CA Whole 255,793 06/047
CALIFORNIA Napa County San Francisco Bay Area, CA Whole 136,484 06/055
CALIFORNIA Nevada County Nevada Co. (Western part), CA Part 82,393 06/057
CALIFORNIA Orange County Los Angeles-South Coast Air Basin, CA Whole 3,010,232 06/059
CALIFORNIA Placer County Sacramento Metro, CA Part 339,500 06/061
CALIFORNIA Riverside County Los Angeles-South Coast Air Basin, CA Part 1,737,296 06/065
CALIFORNIA Riverside County Morongo Band of Mission Indians Part 913 06/065
CALIFORNIA Riverside County Riverside Co. (Coachella Valley), CA Part 425,425 06/065
CALIFORNIA Sacramento County Sacramento Metro, CA Whole 1,418,788 06/067
CALIFORNIA San Bernardino County Los Angeles-San Bernardino Cos. (W Mojave Desert), CA Part 489,780 06/071
CALIFORNIA San Bernardino County Los Angeles-South Coast Air Basin, CA Part 1,526,620 06/071
CALIFORNIA San Francisco County San Francisco Bay Area, CA Whole 805,235 06/075
CALIFORNIA San Joaquin County San Joaquin Valley, CA Whole 685,306 06/077
CALIFORNIA San Mateo County San Francisco Bay Area, CA Whole 718,451 06/081
CALIFORNIA Santa Clara County San Francisco Bay Area, CA Whole 1,781,642 06/085
CALIFORNIA Solano County Sacramento Metro, CA Part 129,518 06/095
CALIFORNIA Solano County San Francisco Bay Area, CA Part 284,218 06/095
CALIFORNIA Sonoma County San Francisco Bay Area, CA Part 433,262 06/097
CALIFORNIA Stanislaus County San Joaquin Valley, CA Whole 514,453 06/099
CALIFORNIA Sutter County Sacramento Metro, CA Part 3,433 06/101
CALIFORNIA Sutter County Sutter Co (Sutter Buttes), CA Part 33 06/101
CALIFORNIA Tulare County San Joaquin Valley, CA Whole 442,179 06/107
CALIFORNIA Tuolumne County Mariposa and Tuolumne Cos (Southern Mtn), CA Whole 55,365 06/109
CALIFORNIA Ventura County Ventura Co, CA Part 823,360 06/111
CALIFORNIA Yolo County Sacramento Metro, CA Whole 200,849 06/113
COLORADO Adams County Denver-Boulder-Greeley-Ft. Collins-Loveland, CO Whole 441,603 08/001
COLORADO Arapahoe County Denver-Boulder-Greeley-Ft. Collins-Loveland, CO Whole 572,003 08/005
COLORADO Boulder County Denver-Boulder-Greeley-Ft. Collins-Loveland, CO Whole 294,567 08/013
COLORADO Broomfield County Denver-Boulder-Greeley-Ft. Collins-Loveland, CO Whole 55,889 08/014
COLORADO Denver County Denver-Boulder-Greeley-Ft. Collins-Loveland, CO Whole 600,158 08/031
COLORADO Douglas County Denver-Boulder-Greeley-Ft. Collins-Loveland, CO Whole 285,465 08/035
COLORADO Jefferson County Denver-Boulder-Greeley-Ft. Collins-Loveland, CO Whole 534,543 08/059
COLORADO Larimer County Denver-Boulder-Greeley-Ft. Collins-Loveland, CO Part 294,389 08/069
COLORADO Weld County Denver-Boulder-Greeley-Ft. Collins-Loveland, CO Part 251,522 08/123
CONNECTICUT Fairfield County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 916,829 09/001
CONNECTICUT Hartford County Greater Connecticut, CT Whole 894,014 09/003
CONNECTICUT Litchfield County Greater Connecticut, CT Whole 189,927 09/005
CONNECTICUT Middlesex County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 165,676 09/007
CONNECTICUT New Haven County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 862,477 09/009
CONNECTICUT New London County Greater Connecticut, CT Whole 274,055 09/011
CONNECTICUT Tolland County Greater Connecticut, CT Whole 152,691 09/013
CONNECTICUT Windham County Greater Connecticut, CT Whole 118,428 09/015
DELAWARE Kent County Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE Whole 162,310 10/001
DELAWARE New Castle County Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE Whole 538,479 10/003
DELAWARE Sussex County Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE Whole 197,145 10/005
DISTRICT OF COLUMBIA District of Columbia Washington, DC-MD-VA Whole 601,723 11/001
MARYLAND Anne Arundel County Baltimore, MD Whole 537,656 24/003
MARYLAND Baltimore County Baltimore, MD Whole 805,029 24/005
MARYLAND Baltimore city Baltimore, MD Whole 620,961 24/510
MARYLAND Calvert County Washington, DC-MD-VA Whole 88,737 24/009
MARYLAND Carroll County Baltimore, MD Whole 167,134 24/013
MARYLAND Cecil County Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE Whole 101,108 24/015
MARYLAND Charles County Washington, DC-MD-VA Whole 146,551 24/017
MARYLAND Frederick County Washington, DC-MD-VA Whole 233,385 24/021
MARYLAND Harford County Baltimore, MD Whole 244,826 24/025
MARYLAND Howard County Baltimore, MD Whole 287,085 24/027
MARYLAND Montgomery County Washington, DC-MD-VA Whole 971,777 24/031
MARYLAND Prince George's County Washington, DC-MD-VA Whole 863,420 24/033
MASSACHUSETTS Barnstable County Boston-Lawrence-Worcester (E. Mass), MA Whole 215,888 25/001
MASSACHUSETTS Berkshire County Springfield (W. Mass), MA Whole 131,219 25/003
MASSACHUSETTS Bristol County Boston-Lawrence-Worcester (E. Mass), MA Whole 548,285 25/005
MASSACHUSETTS Dukes County Boston-Lawrence-Worcester (E. Mass), MA Whole 16,535 25/007
MASSACHUSETTS Essex County Boston-Lawrence-Worcester (E. Mass), MA Whole 743,159 25/009
MASSACHUSETTS Franklin County Springfield (W. Mass), MA Whole 71,372 25/011
MASSACHUSETTS Hampden County Springfield (W. Mass), MA Whole 463,490 25/013
MASSACHUSETTS Hampshire County Springfield (W. Mass), MA Whole 158,080 25/015
MASSACHUSETTS Middlesex County Boston-Lawrence-Worcester (E. Mass), MA Whole 1,503,085 25/017
MASSACHUSETTS Nantucket County Boston-Lawrence-Worcester (E. Mass), MA Whole 10,172 25/019
MASSACHUSETTS Norfolk County Boston-Lawrence-Worcester (E. Mass), MA Whole 670,850 25/021
MASSACHUSETTS Plymouth County Boston-Lawrence-Worcester (E. Mass), MA Whole 494,919 25/023
MASSACHUSETTS Suffolk County Boston-Lawrence-Worcester (E. Mass), MA Whole 722,023 25/025
MASSACHUSETTS Worcester County Boston-Lawrence-Worcester (E. Mass), MA Whole 798,552 25/027
NEW JERSEY Atlantic County Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE Whole 274,549 34/001
NEW JERSEY Bergen County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 905,116 34/003
NEW JERSEY Burlington County Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE Whole 448,734 34/005
NEW JERSEY Camden County Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE Whole 513,657 34/007
NEW JERSEY Cape May County Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE Whole 97,265 34/009
NEW JERSEY Cumberland County Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE Whole 156,898 34/011
NEW JERSEY Essex County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 783,969 34/013
NEW JERSEY Gloucester County Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE Whole 288,288 34/015
NEW JERSEY Hudson County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 634,266 34/017
NEW JERSEY Hunterdon County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 128,349 34/019
NEW JERSEY Mercer County Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE Whole 366,513 34/021
NEW JERSEY Middlesex County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 809,858 34/023
NEW JERSEY Monmouth County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 630,380 34/025
NEW JERSEY Morris County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 492,276 34/027
NEW JERSEY Ocean County Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE Whole 576,567 34/029
NEW JERSEY Passaic County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 501,226 34/031
NEW JERSEY Salem County Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE Whole 66,083 34/033
NEW JERSEY Somerset County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 323,444 34/035
NEW JERSEY Sussex County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 149,265 34/037
NEW JERSEY Union County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 536,499 34/039
NEW JERSEY Warren County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 108,692 34/041
NEW YORK Albany County Albany-Schenectady-Troy, NY Whole 304,204 36/001
NEW YORK Bronx County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 1,385,108 36/005
NEW YORK Chautauqua County Jamestown, NY Whole 134,905 36/013
NEW YORK Dutchess County Poughkeepsie, NY Whole 297,488 36/027
NEW YORK Erie County Buffalo-Niagara Falls, NY Whole 919,040 36/029
NEW YORK Essex County Essex Co (Whiteface Mtn), NY Part 465 36/031
NEW YORK Genesee County Rochester, NY Whole 60,079 36/037
NEW YORK Greene County Albany-Schenectady-Troy, NY Whole 49,221 36/039
NEW YORK Jefferson County Jefferson Co, NY Whole 116,229 36/045
NEW YORK Kings County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 2,504,700 36/047
NEW YORK Livingston County Rochester, NY Whole 65,393 36/051
NEW YORK Monroe County Rochester, NY Whole 744,344 36/055
NEW YORK Montgomery County Albany-Schenectady-Troy, NY Whole 50,219 36/057
NEW YORK Nassau County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 1,339,532 36/059
NEW YORK New York County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 1,585,873 36/061
NEW YORK Niagara County Buffalo-Niagara Falls, NY Whole 216,469 36/063
NEW YORK Ontario County Rochester, NY Whole 107,931 36/069
NEW YORK Orange County Poughkeepsie, NY Whole 372,813 36/071
NEW YORK Orleans County Rochester, NY Whole 42,883 36/073
NEW YORK Putnam County Poughkeepsie, NY Whole 99,710 36/079
NEW YORK Queens County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 2,230,722 36/081
NEW YORK Rensselaer County Albany-Schenectady-Troy, NY Whole 159,429 36/083
NEW YORK Richmond County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 468,730 36/085
NEW YORK Rockland County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 311,687 36/087
NEW YORK Saratoga County Albany-Schenectady-Troy, NY Whole 219,607 36/091
NEW YORK Schenectady County Albany-Schenectady-Troy, NY Whole 154,727 36/093
NEW YORK Schoharie County Albany-Schenectady-Troy, NY Whole 32,749 36/095
NEW YORK Suffolk County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 1,493,350 36/103
NEW YORK Wayne County Rochester, NY Whole 93,772 36/117
NEW YORK Westchester County New York-N. New Jersey-Long Island, NY-NJ-CT Whole 949,113 36/119
PENNSYLVANIA Allegheny County Pittsburgh-Beaver Valley, PA Whole 1,223,348 42/003
PENNSYLVANIA Armstrong County Pittsburgh-Beaver Valley, PA Whole 68,941 42/005
PENNSYLVANIA Beaver County Pittsburgh-Beaver Valley, PA Whole 170,539 42/007
PENNSYLVANIA Bucks County Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE Whole 625,249 42/017
PENNSYLVANIA Butler County Pittsburgh-Beaver Valley, PA Whole 183,862 42/019
PENNSYLVANIA Chester County Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE Whole 498,886 42/029
PENNSYLVANIA Delaware County Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE Whole 558,979 42/045
PENNSYLVANIA Fayette County Pittsburgh-Beaver Valley, PA Whole 136,606 42/051
PENNSYLVANIA Montgomery County Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE Whole 799,874 42/091
PENNSYLVANIA Philadelphia County Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE Whole 1,526,006 42/101
PENNSYLVANIA Washington County Pittsburgh-Beaver Valley, PA Whole 207,820 42/125
PENNSYLVANIA Westmoreland County Pittsburgh-Beaver Valley, PA Whole 365,169 42/129
RHODE ISLAND Bristol County Providence (all of RI), RI Whole 49,875 44/001
RHODE ISLAND Kent County Providence (all of RI), RI Whole 166,158 44/003
RHODE ISLAND Newport County Providence (all of RI), RI Whole 82,888 44/005
RHODE ISLAND Providence County Providence (all of RI), RI Whole 626,667 44/007
RHODE ISLAND Washington County Providence (all of RI), RI Whole 126,979 44/009
TEXAS Brazoria County Houston-Galveston-Brazoria, TX Whole 313,166 48/039
TEXAS Chambers County Houston-Galveston-Brazoria, TX Whole 35,096 48/071
TEXAS Collin County Dallas-Fort Worth, TX Whole 782,341 48/085
TEXAS Dallas County Dallas-Fort Worth, TX Whole 2,368,139 48/113
TEXAS Denton County Dallas-Fort Worth, TX Whole 662,614 48/121
TEXAS Ellis County Dallas-Fort Worth, TX Whole 149,610 48/139
TEXAS Fort Bend County Houston-Galveston-Brazoria, TX Whole 585,375 48/157
TEXAS Galveston County Houston-Galveston-Brazoria, TX Whole 291,309 48/167
TEXAS Harris County Houston-Galveston-Brazoria, TX Whole 4,092,459 48/201
TEXAS Johnson County Dallas-Fort Worth, TX Whole 150,934 48/251
TEXAS Kaufman County Dallas-Fort Worth, TX Whole 103,350 48/257
TEXAS Liberty County Houston-Galveston-Brazoria, TX Whole 75,643 48/291
TEXAS Montgomery County Houston-Galveston-Brazoria, TX Whole 455,746 48/339
TEXAS Parker County Dallas-Fort Worth, TX Whole 116,927 48/367
TEXAS Rockwall County Dallas-Fort Worth, TX Whole 78,337 48/397
TEXAS Tarrant County Dallas-Fort Worth, TX Whole 1,809,034 48/439
TEXAS Waller County Houston-Galveston-Brazoria, TX Whole 43,205 48/473
VIRGINIA Alexandria city Washington, DC-MD-VA Whole 139,966 51/510
VIRGINIA Arlington County Washington, DC-MD-VA Whole 207,627 51/013
VIRGINIA Fairfax County Washington, DC-MD-VA Whole 1,081,726 51/059
VIRGINIA Fairfax city Washington, DC-MD-VA Whole 22,565 51/600
VIRGINIA Falls Church city Washington, DC-MD-VA Whole 12,332 51/610
VIRGINIA Loudoun County Washington, DC-MD-VA Whole 312,311 51/107
VIRGINIA Manassas Park city Washington, DC-MD-VA Whole 14,273 51/685
VIRGINIA Manassas city Washington, DC-MD-VA Whole 37,821 51/683
VIRGINIA Prince William County Washington, DC-MD-VA Whole 402,002 51/153
WISCONSIN Sheboygan County Sheboygan, WI Whole 115,507 55/117


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