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1-Hour Ozone (1979) Maintenance Areas (Redesignated from Nonattainment) by State/County/Area - NAAQS Revoked

Data is current as of September 30, 2020

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
ALABAMA Jefferson County Birmingham, AL Whole 658,466 01/073
ALABAMA Shelby County Birmingham, AL Whole 195,085 01/117
ARIZONA Maricopa County Phoenix, AZ Part 3,763,324 04/013
CALIFORNIA Kern County East Kern Co, CA Part 141,398 06/029
CALIFORNIA Monterey County Monterey Bay, CA Whole 415,057 06/053
CALIFORNIA San Benito County Monterey Bay, CA Whole 55,269 06/069
CALIFORNIA San Diego County San Diego, CA Whole 3,095,313 06/073
CALIFORNIA Santa Barbara County Santa Barbara-Santa Maria-Lompoc, CA Whole 423,895 06/083
CALIFORNIA Santa Cruz County Monterey Bay, CA Whole 262,382 06/087
COLORADO Adams County Denver-Boulder, CO Part 432,838 08/001
COLORADO Arapahoe County Denver-Boulder, CO Part 567,075 08/005
COLORADO Boulder County Denver-Boulder, CO Part 294,556 08/013
COLORADO Broomfield County Denver-Boulder, CO Whole 55,889 08/014
COLORADO Denver County Denver-Boulder, CO Whole 600,158 08/031
COLORADO Douglas County Denver-Boulder, CO Whole 285,465 08/035
COLORADO Jefferson County Denver-Boulder, CO Whole 534,543 08/059
FLORIDA Broward County Miami-Fort Lauderdale-W. Palm Beach, FL Whole 1,748,066 12/011
FLORIDA Duval County Jacksonville, FL Whole 864,263 12/031
FLORIDA Hillsborough County Tampa-St. Petersburg-Clearwater, FL Whole 1,229,226 12/057
FLORIDA Miami-Dade County Miami-Fort Lauderdale-W. Palm Beach, FL Whole 2,496,435 12/086
FLORIDA Palm Beach County Miami-Fort Lauderdale-W. Palm Beach, FL Whole 1,320,134 12/099
FLORIDA Pinellas County Tampa-St. Petersburg-Clearwater, FL Whole 916,542 12/103
GEORGIA Cherokee County Atlanta, GA Whole 214,346 13/057
GEORGIA Clayton County Atlanta, GA Whole 259,424 13/063
GEORGIA Cobb County Atlanta, GA Whole 688,078 13/067
GEORGIA Coweta County Atlanta, GA Whole 127,317 13/077
GEORGIA DeKalb County Atlanta, GA Whole 691,893 13/089
GEORGIA Douglas County Atlanta, GA Whole 132,403 13/097
GEORGIA Fayette County Atlanta, GA Whole 106,567 13/113
GEORGIA Forsyth County Atlanta, GA Whole 175,511 13/117
GEORGIA Fulton County Atlanta, GA Whole 920,581 13/121
GEORGIA Gwinnett County Atlanta, GA Whole 805,321 13/135
GEORGIA Henry County Atlanta, GA Whole 203,922 13/151
GEORGIA Paulding County Atlanta, GA Whole 142,324 13/223
GEORGIA Rockdale County Atlanta, GA Whole 85,215 13/247
ILLINOIS Jersey County Jersey Co, IL Whole 22,985 17/083
ILLINOIS Madison County St. Louis, MO-IL Whole 269,282 17/119
ILLINOIS Monroe County St. Louis, MO-IL Whole 32,957 17/133
ILLINOIS St. Clair County St. Louis, MO-IL Whole 270,056 17/163
INDIANA Clark County Louisville, KY-IN Whole 110,232 18/019
INDIANA Elkhart County South Bend-Elkhart, IN Whole 197,559 18/039
INDIANA Floyd County Louisville, KY-IN Whole 74,578 18/043
INDIANA Marion County Indianapolis, IN Whole 903,393 18/097
INDIANA St. Joseph County South Bend-Elkhart, IN Whole 266,931 18/141
INDIANA Vanderburgh County Evansville, IN Whole 179,703 18/163
KANSAS Johnson County Kansas City, MO-KS Whole 544,179 20/091
KANSAS Wyandotte County Kansas City, MO-KS Whole 157,505 20/209
KENTUCKY Boone County Cincinnati-Hamilton, OH-KY Whole 118,811 21/015
KENTUCKY Boyd County Huntington-Ashland, WV-KY Whole 49,542 21/019
KENTUCKY Bullitt County Louisville, KY-IN Part 17,539 21/029
KENTUCKY Campbell County Cincinnati-Hamilton, OH-KY Whole 90,336 21/037
KENTUCKY Daviess County Owensboro, KY Whole 96,656 21/059
KENTUCKY Edmonson County Edmonson Co, KY Whole 12,161 21/061
KENTUCKY Fayette County Lexington-Fayette, KY Whole 295,803 21/067
KENTUCKY Greenup County Huntington-Ashland, WV-KY Part 17,134 21/089
KENTUCKY Hancock County Owensboro, KY Part 861 21/091
KENTUCKY Jefferson County Louisville, KY-IN Whole 741,096 21/111
KENTUCKY Kenton County Cincinnati-Hamilton, OH-KY Whole 159,720 21/117
KENTUCKY Livingston County Paducah, KY Part 1,242 21/139
KENTUCKY Marshall County Paducah, KY Whole 31,448 21/157
KENTUCKY Oldham County Louisville, KY-IN Part 10,447 21/185
KENTUCKY Scott County Lexington-Fayette, KY Whole 47,173 21/209
LOUISIANA Beauregard Parish Beauregard Par, LA Whole 35,654 22/011
LOUISIANA Calcasieu Parish Lake Charles, LA Whole 192,768 22/019
LOUISIANA Grant Parish Grant Par, LA Whole 22,309 22/043
LOUISIANA Jefferson Parish New Orleans, LA Whole 432,552 22/051
LOUISIANA Lafayette Parish Lafayette, LA Whole 221,578 22/055
LOUISIANA Lafourche Parish Lafourche Par, LA Whole 96,318 22/057
LOUISIANA Orleans Parish New Orleans, LA Whole 343,829 22/071
LOUISIANA Pointe Coupee Parish Pointe Coupee Parish, LA Whole 22,802 22/077
LOUISIANA St. Bernard Parish New Orleans, LA Whole 35,897 22/087
LOUISIANA St. Charles Parish New Orleans, LA Whole 52,780 22/089
LOUISIANA St. James Parish St James Par, LA Whole 22,102 22/093
LOUISIANA St. Mary Parish St Mary Par, LA Whole 54,650 22/101
MAINE Hancock County Hancock & Waldo Cos, ME Whole 54,418 23/009
MAINE Waldo County Hancock & Waldo Cos, ME Whole 38,786 23/027
MARYLAND Kent County Kent and Queen Anne's Co.s, MD Whole 20,197 24/029
MARYLAND Queen Anne's County Kent and Queen Anne's Co.s, MD Whole 47,798 24/035
MICHIGAN Allegan County Allegan Co, MI Whole 111,408 26/005
MICHIGAN Bay County Saginaw-Bay City-Midland, MI Whole 107,771 26/017
MICHIGAN Genesee County Flint, MI Whole 425,790 26/049
MICHIGAN Kent County Grand Rapids, MI Whole 602,622 26/081
MICHIGAN Livingston County Detroit-Ann Arbor, MI Whole 180,967 26/093
MICHIGAN Macomb County Detroit-Ann Arbor, MI Whole 840,978 26/099
MICHIGAN Midland County Saginaw-Bay City-Midland, MI Whole 83,629 26/111
MICHIGAN Monroe County Detroit-Ann Arbor, MI Whole 152,021 26/115
MICHIGAN Muskegon County Muskegon, MI Whole 172,188 26/121
MICHIGAN Oakland County Detroit-Ann Arbor, MI Whole 1,202,362 26/125
MICHIGAN Ottawa County Grand Rapids, MI Whole 263,801 26/139
MICHIGAN Saginaw County Saginaw-Bay City-Midland, MI Whole 200,169 26/145
MICHIGAN St. Clair County Detroit-Ann Arbor, MI Whole 163,040 26/147
MICHIGAN Washtenaw County Detroit-Ann Arbor, MI Whole 344,791 26/161
MICHIGAN Wayne County Detroit-Ann Arbor, MI Whole 1,820,584 26/163
MISSOURI Clay County Kansas City, MO-KS Whole 221,939 29/047
MISSOURI Franklin County St. Louis, MO-IL Whole 101,492 29/071
MISSOURI Jackson County Kansas City, MO-KS Whole 674,158 29/095
MISSOURI Jefferson County St. Louis, MO-IL Whole 218,733 29/099
MISSOURI Platte County Kansas City, MO-KS Whole 89,322 29/165
MISSOURI St. Charles County St. Louis, MO-IL Whole 360,485 29/183
MISSOURI St. Louis County St. Louis, MO-IL Whole 998,954 29/189
MISSOURI St. Louis city St. Louis, MO-IL Whole 319,294 29/510
NORTH CAROLINA Davidson County Greensboro-Winston-Salem-High Point, NC Whole 162,878 37/057
NORTH CAROLINA Davie County Greensboro-Winston-Salem-High Point, NC Part 1 37/059
NORTH CAROLINA Durham County Raleigh-Durham, NC Whole 267,587 37/063
NORTH CAROLINA Forsyth County Greensboro-Winston-Salem-High Point, NC Whole 350,670 37/067
NORTH CAROLINA Gaston County Charlotte-Gastonia, NC Whole 206,086 37/071
NORTH CAROLINA Granville County Raleigh-Durham, NC Part 17,725 37/077
NORTH CAROLINA Guilford County Greensboro-Winston-Salem-High Point, NC Whole 488,406 37/081
NORTH CAROLINA Mecklenburg County Charlotte-Gastonia, NC Whole 919,628 37/119
NORTH CAROLINA Wake County Raleigh-Durham, NC Whole 900,993 37/183
OHIO Ashtabula County Cleveland-Akron-Lorain, OH Whole 101,497 39/007
OHIO Butler County Cincinnati-Hamilton, OH-KY Whole 368,130 39/017
OHIO Clark County Dayton-Springfield, OH Whole 138,333 39/023
OHIO Clermont County Cincinnati-Hamilton, OH-KY Whole 197,363 39/025
OHIO Clinton County Clinton Co, OH Whole 42,040 39/027
OHIO Columbiana County Columbiana Co, OH Whole 107,841 39/029
OHIO Cuyahoga County Cleveland-Akron-Lorain, OH Whole 1,280,122 39/035
OHIO Delaware County Columbus, OH Whole 174,214 39/041
OHIO Franklin County Columbus, OH Whole 1,163,414 39/049
OHIO Geauga County Cleveland-Akron-Lorain, OH Whole 93,389 39/055
OHIO Greene County Dayton-Springfield, OH Whole 161,573 39/057
OHIO Hamilton County Cincinnati-Hamilton, OH-KY Whole 802,374 39/061
OHIO Jefferson County Steubenville, OH Whole 69,709 39/081
OHIO Lake County Cleveland-Akron-Lorain, OH Whole 230,041 39/085
OHIO Licking County Columbus, OH Whole 166,492 39/089
OHIO Lorain County Cleveland-Akron-Lorain, OH Whole 301,356 39/093
OHIO Lucas County Toledo, OH Whole 441,815 39/095
OHIO Mahoning County Youngstown-Warren-Sharon, OH-PA (OH portion) Whole 238,823 39/099
OHIO Medina County Cleveland-Akron-Lorain, OH Whole 172,332 39/103
OHIO Miami County Dayton-Springfield, OH Whole 102,506 39/109
OHIO Montgomery County Dayton-Springfield, OH Whole 535,153 39/113
OHIO Portage County Cleveland-Akron-Lorain, OH Whole 161,419 39/133
OHIO Preble County Preble Co, OH Whole 42,270 39/135
OHIO Stark County Canton, OH Whole 375,586 39/151
OHIO Summit County Cleveland-Akron-Lorain, OH Whole 541,781 39/153
OHIO Trumbull County Youngstown-Warren-Sharon, OH-PA (OH portion) Whole 210,312 39/155
OHIO Warren County Cincinnati-Hamilton, OH-KY Whole 212,693 39/165
OHIO Wood County Toledo, OH Whole 125,488 39/173
OREGON Clackamas County Portland-Vancouver AQMA, OR-WA Part 373,166 41/005
OREGON Multnomah County Portland-Vancouver AQMA, OR-WA Part 377,954 41/051
OREGON Washington County Portland-Vancouver AQMA, OR-WA Part 510,250 41/067
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 Berks County Reading, PA Whole 411,442 42/011
PENNSYLVANIA Butler County Pittsburgh-Beaver Valley, PA Whole 183,862 42/019
PENNSYLVANIA Fayette County Pittsburgh-Beaver Valley, PA Whole 136,606 42/051
PENNSYLVANIA Washington County Pittsburgh-Beaver Valley, PA Whole 207,820 42/125
PENNSYLVANIA Westmoreland County Pittsburgh-Beaver Valley, PA Whole 365,169 42/129
SOUTH CAROLINA Cherokee County Cherokee Co, SC Whole 55,342 45/021
TENNESSEE Davidson County Nashville, TN Whole 626,681 47/037
TENNESSEE Knox County Knoxville, TN Whole 432,226 47/093
TENNESSEE Rutherford County Nashville, TN Whole 262,604 47/149
TENNESSEE Shelby County Memphis, TN Whole 927,644 47/157
TENNESSEE Sumner County Nashville, TN Whole 160,645 47/165
TENNESSEE Williamson County Nashville, TN Whole 183,182 47/187
TENNESSEE Wilson County Nashville, TN Whole 113,993 47/189
TEXAS Victoria County Victoria, TX Whole 86,793 48/469
UTAH Davis County Salt Lake City, UT Whole 306,479 49/011
UTAH Salt Lake County Salt Lake City, UT Whole 1,029,655 49/035
VIRGINIA Charles City County Richmond, VA Part 62 51/036
VIRGINIA Chesapeake city Norfolk-Virginia Beach-Newport News (Hampton Roads), VA Whole 222,209 51/550
VIRGINIA Chesterfield County Richmond, VA Whole 316,236 51/041
VIRGINIA Colonial Heights city Richmond, VA Whole 17,411 51/570
VIRGINIA Hampton city Norfolk-Virginia Beach-Newport News (Hampton Roads), VA Whole 137,436 51/650
VIRGINIA Hanover County Richmond, VA Whole 99,863 51/085
VIRGINIA Henrico County Richmond, VA Whole 306,935 51/087
VIRGINIA Hopewell city Richmond, VA Whole 22,591 51/670
VIRGINIA James City County Norfolk-Virginia Beach-Newport News (Hampton Roads), VA Whole 67,009 51/095
VIRGINIA Newport News city Norfolk-Virginia Beach-Newport News (Hampton Roads), VA Whole 180,719 51/700
VIRGINIA Norfolk city Norfolk-Virginia Beach-Newport News (Hampton Roads), VA Whole 242,803 51/710
VIRGINIA Poquoson city Norfolk-Virginia Beach-Newport News (Hampton Roads), VA Whole 12,150 51/735
VIRGINIA Portsmouth city Norfolk-Virginia Beach-Newport News (Hampton Roads), VA Whole 95,535 51/740
VIRGINIA Richmond city Richmond, VA Whole 204,214 51/760
VIRGINIA Suffolk city Norfolk-Virginia Beach-Newport News (Hampton Roads), VA Whole 84,585 51/800
VIRGINIA Virginia Beach city Norfolk-Virginia Beach-Newport News (Hampton Roads), VA Whole 437,994 51/810
VIRGINIA Williamsburg city Norfolk-Virginia Beach-Newport News (Hampton Roads), VA Whole 14,068 51/830
VIRGINIA York County Norfolk-Virginia Beach-Newport News (Hampton Roads), VA Whole 65,464 51/199
WASHINGTON Clark County Portland-Vancouver AQMA, OR-WA Part 410,990 53/011
WASHINGTON King County Seattle-Tacoma, WA Part 1,931,234 53/033
WASHINGTON Pierce County Seattle-Tacoma, WA Whole 795,225 53/053
WASHINGTON Snohomish County Seattle-Tacoma, WA Part 713,351 53/061
WEST VIRGINIA Cabell County Huntington-Ashland, WV-KY Whole 96,319 54/011
WEST VIRGINIA Greenbrier County Greenbrier, WV Whole 35,480 54/025
WEST VIRGINIA Kanawha County Charleston, WV Whole 193,063 54/039
WEST VIRGINIA Putnam County Charleston, WV Whole 55,486 54/079
WEST VIRGINIA Wayne County Huntington-Ashland, WV-KY Whole 42,481 54/099
WEST VIRGINIA Wood County Parkersburg-Marietta, WV Whole 86,956 54/107
WISCONSIN Door County Door Co, WI Whole 27,785 55/029
WISCONSIN Kewaunee County Kewaunee Co, WI Whole 20,574 55/061
WISCONSIN Manitowoc County Manitowoc Co, WI Whole 81,442 55/071
WISCONSIN Sheboygan County Sheboygan, WI Whole 115,507 55/117
WISCONSIN Walworth County Walworth Co, WI Whole 102,228 55/127


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