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

Data is current as of March 31, 2024

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 County, 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 County, 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 County, 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 Parish, LA	Whole	35,654	22/011
LOUISIANA	Calcasieu Parish	Lake Charles, LA	Whole	192,768	22/019
LOUISIANA	Grant Parish	Grant Parish, 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 Parish, 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 Parish, LA	Whole	22,102	22/093
LOUISIANA	St. Mary Parish	St. Mary Parish, LA	Whole	54,650	22/101
MAINE	Hancock County	Hancock County and Waldo County, ME	Whole	54,418	23/009
MAINE	Waldo County	Hancock County and Waldo County, ME	Whole	38,786	23/027
MARYLAND	Kent County	Kent County and Queen Anne's County, MD	Whole	20,197	24/029
MARYLAND	Queen Anne's County	Kent County and Queen Anne's County, MD	Whole	47,798	24/035
MICHIGAN	Allegan County	Allegan County, 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 County, OH	Whole	42,040	39/027
OHIO	Columbiana County	Columbiana County, 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 County, 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 County, 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 County, WI	Whole	27,785	55/029
WISCONSIN	Kewaunee County	Kewaunee County, WI	Whole	20,574	55/061
WISCONSIN	Manitowoc County	Manitowoc County, WI	Whole	81,442	55/071
WISCONSIN	Sheboygan County	Sheboygan, WI	Whole	115,507	55/117
WISCONSIN	Walworth County	Walworth County, WI	Whole	102,228	55/127

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