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PM-2.5 (1997) Designated Areas by State/County/Area

Data is current as of May 31, 2019

* The 1997 Primary Annual PM-2.5 NAAQS (level of 15 µg/m3) is revoked in attainment and maintenance areas for that NAAQS. For additional information see the PM-2.5 NAAQS SIP Requirements Final Rule, effective October 24, 2016. (81 FR 58009)

Click underlined column heading to change report order
State  County  Area Name  Current Status  County NA
Whole/Part
 
2010
Population
 
State/
County FIPS
click link for
partial county description
whole or
partial county population
ALABAMA Jackson County Chattanooga, TN-GA-AL Maintenance * Part 1,760 01/071
ALABAMA Jefferson County Birmingham, AL Maintenance * Whole 658,466 01/073
ALABAMA Shelby County Birmingham, AL Maintenance * Whole 195,085 01/117
ALABAMA Walker County Birmingham, AL Maintenance * Part 4,129 01/127
CALIFORNIA Fresno County San Joaquin Valley, CA Nonattainment Whole 930,450 06/019
CALIFORNIA Kern County San Joaquin Valley, CA Nonattainment Part 710,137 06/029
CALIFORNIA Kings County San Joaquin Valley, CA Nonattainment Whole 152,982 06/031
CALIFORNIA Los Angeles County Los Angeles-South Coast Air Basin, CA Nonattainment Part 9,438,565 06/037
CALIFORNIA Madera County San Joaquin Valley, CA Nonattainment Whole 150,865 06/039
CALIFORNIA Merced County San Joaquin Valley, CA Nonattainment Whole 255,793 06/047
CALIFORNIA Orange County Los Angeles-South Coast Air Basin, CA Nonattainment Whole 3,010,232 06/059
CALIFORNIA Riverside County Los Angeles-South Coast Air Basin, CA Nonattainment Part 1,740,912 06/065
CALIFORNIA San Bernardino County Los Angeles-South Coast Air Basin, CA Nonattainment Part 1,526,626 06/071
CALIFORNIA San Joaquin County San Joaquin Valley, CA Nonattainment Whole 685,306 06/077
CALIFORNIA Stanislaus County San Joaquin Valley, CA Nonattainment Whole 514,453 06/099
CALIFORNIA Tulare County San Joaquin Valley, CA Nonattainment Whole 442,179 06/107
CONNECTICUT Fairfield County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 916,829 09/001
CONNECTICUT New Haven County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 862,477 09/009
DELAWARE New Castle County Philadelphia-Wilmington, PA-NJ-DE Maintenance * Whole 538,479 10/003
DISTRICT OF COLUMBIA District of Columbia Washington, DC-MD-VA Maintenance * Whole 601,723 11/001
GEORGIA Barrow County Atlanta, GA Maintenance * Whole 69,367 13/013
GEORGIA Bartow County Atlanta, GA Maintenance * Whole 100,157 13/015
GEORGIA Bibb County Macon, GA Maintenance * Whole 155,547 13/021
GEORGIA Carroll County Atlanta, GA Maintenance * Whole 110,527 13/045
GEORGIA Catoosa County Chattanooga, TN-GA-AL Maintenance * Whole 63,942 13/047
GEORGIA Cherokee County Atlanta, GA Maintenance * Whole 214,346 13/057
GEORGIA Clayton County Atlanta, GA Maintenance * Whole 259,424 13/063
GEORGIA Cobb County Atlanta, GA Maintenance * Whole 688,078 13/067
GEORGIA Coweta County Atlanta, GA Maintenance * Whole 127,317 13/077
GEORGIA DeKalb County Atlanta, GA Maintenance * Whole 691,893 13/089
GEORGIA Douglas County Atlanta, GA Maintenance * Whole 132,403 13/097
GEORGIA Fayette County Atlanta, GA Maintenance * Whole 106,567 13/113
GEORGIA Floyd County Rome, GA Maintenance * Whole 96,317 13/115
GEORGIA Forsyth County Atlanta, GA Maintenance * Whole 175,511 13/117
GEORGIA Fulton County Atlanta, GA Maintenance * Whole 920,581 13/121
GEORGIA Gwinnett County Atlanta, GA Maintenance * Whole 805,321 13/135
GEORGIA Hall County Atlanta, GA Maintenance * Whole 179,684 13/139
GEORGIA Heard County Atlanta, GA Maintenance * Part 959 13/149
GEORGIA Henry County Atlanta, GA Maintenance * Whole 203,922 13/151
GEORGIA Monroe County Macon, GA Maintenance * Part 2,576 13/207
GEORGIA Newton County Atlanta, GA Maintenance * Whole 99,958 13/217
GEORGIA Paulding County Atlanta, GA Maintenance * Whole 142,324 13/223
GEORGIA Putnam County Atlanta, GA Maintenance * Part 3,904 13/237
GEORGIA Rockdale County Atlanta, GA Maintenance * Whole 85,215 13/247
GEORGIA Spalding County Atlanta, GA Maintenance * Whole 64,073 13/255
GEORGIA Walker County Chattanooga, TN-GA-AL Maintenance * Whole 68,756 13/295
GEORGIA Walton County Atlanta, GA Maintenance * Whole 83,768 13/297
ILLINOIS Cook County Chicago-Gary-Lake County, IL-IN Maintenance * Whole 5,194,675 17/031
ILLINOIS DuPage County Chicago-Gary-Lake County, IL-IN Maintenance * Whole 916,924 17/043
ILLINOIS Grundy County Chicago-Gary-Lake County, IL-IN Maintenance * Part 20,519 17/063
ILLINOIS Kane County Chicago-Gary-Lake County, IL-IN Maintenance * Whole 515,269 17/089
ILLINOIS Kendall County Chicago-Gary-Lake County, IL-IN Maintenance * Part 52,377 17/093
ILLINOIS Lake County Chicago-Gary-Lake County, IL-IN Maintenance * Whole 703,462 17/097
ILLINOIS Madison County St. Louis, MO-IL Maintenance * Whole 269,282 17/119
ILLINOIS McHenry County Chicago-Gary-Lake County, IL-IN Maintenance * Whole 308,760 17/111
ILLINOIS Monroe County St. Louis, MO-IL Maintenance * Whole 32,957 17/133
ILLINOIS Randolph County St. Louis, MO-IL Maintenance * Part 1,453 17/157
ILLINOIS St. Clair County St. Louis, MO-IL Maintenance * Whole 270,056 17/163
ILLINOIS Will County Chicago-Gary-Lake County, IL-IN Maintenance * Whole 677,560 17/197
INDIANA Clark County Louisville, KY-IN Maintenance * Whole 110,232 18/019
INDIANA Dearborn County Cincinnati-Hamilton, OH-KY-IN Maintenance * Part 13,516 18/029
INDIANA Dubois County Evansville, IN Maintenance * Whole 41,889 18/037
INDIANA Floyd County Louisville, KY-IN Maintenance * Whole 74,578 18/043
INDIANA Gibson County Evansville, IN Maintenance * Part 4,567 18/051
INDIANA Hamilton County Indianapolis, IN Maintenance * Whole 274,569 18/057
INDIANA Hendricks County Indianapolis, IN Maintenance * Whole 145,448 18/063
INDIANA Jefferson County Louisville, KY-IN Maintenance * Part 18,679 18/077
INDIANA Johnson County Indianapolis, IN Maintenance * Whole 139,654 18/081
INDIANA Lake County Chicago-Gary-Lake County, IL-IN Maintenance * Whole 496,005 18/089
INDIANA Marion County Indianapolis, IN Maintenance * Whole 903,393 18/097
INDIANA Morgan County Indianapolis, IN Maintenance * Whole 68,894 18/109
INDIANA Pike County Evansville, IN Maintenance * Part 5,124 18/125
INDIANA Porter County Chicago-Gary-Lake County, IL-IN Maintenance * Whole 164,343 18/127
INDIANA Spencer County Evansville, IN Maintenance * Part 6,023 18/147
INDIANA Vanderburgh County Evansville, IN Maintenance * Whole 179,703 18/163
INDIANA Warrick County Evansville, IN Maintenance * Whole 59,689 18/173
KENTUCKY Boone County Cincinnati-Hamilton, OH-KY-IN Maintenance * Whole 118,811 21/015
KENTUCKY Boyd County Huntington-Ashland, WV-KY-OH Maintenance * Whole 49,542 21/019
KENTUCKY Bullitt County Louisville, KY-IN Maintenance * Whole 74,319 21/029
KENTUCKY Campbell County Cincinnati-Hamilton, OH-KY-IN Maintenance * Whole 90,336 21/037
KENTUCKY Jefferson County Louisville, KY-IN Maintenance * Whole 741,096 21/111
KENTUCKY Kenton County Cincinnati-Hamilton, OH-KY-IN Maintenance * Whole 159,720 21/117
KENTUCKY Lawrence County Huntington-Ashland, WV-KY-OH Maintenance * Part 2,855 21/127
MARYLAND Anne Arundel County Baltimore, MD Maintenance * Whole 537,656 24/003
MARYLAND Baltimore County Baltimore, MD Maintenance * Whole 805,029 24/005
MARYLAND Baltimore city Baltimore, MD Maintenance * Whole 620,961 24/510
MARYLAND Carroll County Baltimore, MD Maintenance * Whole 167,134 24/013
MARYLAND Charles County Washington, DC-MD-VA Maintenance * Whole 146,551 24/017
MARYLAND Frederick County Washington, DC-MD-VA Maintenance * Whole 233,385 24/021
MARYLAND Harford County Baltimore, MD Maintenance * Whole 244,826 24/025
MARYLAND Howard County Baltimore, MD Maintenance * Whole 287,085 24/027
MARYLAND Montgomery County Washington, DC-MD-VA Maintenance * Whole 971,777 24/031
MARYLAND Prince George's County Washington, DC-MD-VA Maintenance * Whole 863,420 24/033
MARYLAND Washington County Martinsburg, WV-Hagerstown, MD Maintenance * Whole 147,430 24/043
MICHIGAN Livingston County Detroit-Ann Arbor, MI Maintenance * Whole 180,967 26/093
MICHIGAN Macomb County Detroit-Ann Arbor, MI Maintenance * Whole 840,978 26/099
MICHIGAN Monroe County Detroit-Ann Arbor, MI Maintenance * Whole 152,021 26/115
MICHIGAN Oakland County Detroit-Ann Arbor, MI Maintenance * Whole 1,202,362 26/125
MICHIGAN St. Clair County Detroit-Ann Arbor, MI Maintenance * Whole 163,040 26/147
MICHIGAN Washtenaw County Detroit-Ann Arbor, MI Maintenance * Whole 344,791 26/161
MICHIGAN Wayne County Detroit-Ann Arbor, MI Maintenance * Whole 1,820,584 26/163
MISSOURI Franklin County St. Louis, MO-IL Maintenance * Whole 101,492 29/071
MISSOURI Jefferson County St. Louis, MO-IL Maintenance * Whole 218,733 29/099
MISSOURI St. Charles County St. Louis, MO-IL Maintenance * Whole 360,485 29/183
MISSOURI St. Louis County St. Louis, MO-IL Maintenance * Whole 998,954 29/189
MISSOURI St. Louis city St. Louis, MO-IL Maintenance * Whole 319,294 29/510
MONTANA Lincoln County Libby, MT Nonattainment Part 9,429 30/053
NEW JERSEY Bergen County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 905,116 34/003
NEW JERSEY Burlington County Philadelphia-Wilmington, PA-NJ-DE Maintenance * Whole 448,734 34/005
NEW JERSEY Camden County Philadelphia-Wilmington, PA-NJ-DE Maintenance * Whole 513,657 34/007
NEW JERSEY Essex County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 783,969 34/013
NEW JERSEY Gloucester County Philadelphia-Wilmington, PA-NJ-DE Maintenance * Whole 288,288 34/015
NEW JERSEY Hudson County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 634,266 34/017
NEW JERSEY Mercer County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 366,513 34/021
NEW JERSEY Middlesex County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 809,858 34/023
NEW JERSEY Monmouth County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 630,380 34/025
NEW JERSEY Morris County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 492,276 34/027
NEW JERSEY Passaic County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 501,226 34/031
NEW JERSEY Somerset County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 323,444 34/035
NEW JERSEY Union County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 536,499 34/039
NEW YORK Bronx County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 1,385,108 36/005
NEW YORK Kings County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 2,504,700 36/047
NEW YORK Nassau County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 1,339,532 36/059
NEW YORK New York County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 1,585,873 36/061
NEW YORK Orange County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 372,813 36/071
NEW YORK Queens County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 2,230,722 36/081
NEW YORK Richmond County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 468,730 36/085
NEW YORK Rockland County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 311,687 36/087
NEW YORK Suffolk County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 1,493,350 36/103
NEW YORK Westchester County New York-N. New Jersey-Long Island, NY-NJ-CT Maintenance * Whole 949,113 36/119
NORTH CAROLINA Catawba County Hickory-Morganton-Lenoir, NC Maintenance * Whole 154,358 37/035
NORTH CAROLINA Davidson County Greensboro-Winston Salem-High Point, NC Maintenance * Whole 162,878 37/057
NORTH CAROLINA Guilford County Greensboro-Winston Salem-High Point, NC Maintenance * Whole 488,406 37/081
OHIO Adams County Huntington-Ashland, WV-KY-OH Maintenance * Part 3,355 39/001
OHIO Ashtabula County Cleveland-Akron-Lorain, OH Maintenance * Part 22,514 39/007
OHIO Belmont County Wheeling, WV-OH Maintenance * Whole 70,400 39/013
OHIO Butler County Cincinnati-Hamilton, OH-KY-IN Maintenance * Whole 368,130 39/017
OHIO Clark County Dayton-Springfield, OH Maintenance * Whole 138,333 39/023
OHIO Clermont County Cincinnati-Hamilton, OH-KY-IN Maintenance * Whole 197,363 39/025
OHIO Coshocton County Columbus, OH Maintenance * Part 1,535 39/031
OHIO Cuyahoga County Cleveland-Akron-Lorain, OH Maintenance * Whole 1,280,122 39/035
OHIO Delaware County Columbus, OH Maintenance * Whole 174,214 39/041
OHIO Fairfield County Columbus, OH Maintenance * Whole 146,156 39/045
OHIO Franklin County Columbus, OH Maintenance * Whole 1,163,414 39/049
OHIO Gallia County Huntington-Ashland, WV-KY-OH Maintenance * Part 4,275 39/053
OHIO Greene County Dayton-Springfield, OH Maintenance * Whole 161,573 39/057
OHIO Hamilton County Cincinnati-Hamilton, OH-KY-IN Maintenance * Whole 802,374 39/061
OHIO Jefferson County Steubenville-Weirton, OH-WV Maintenance * Whole 69,709 39/081
OHIO Lake County Cleveland-Akron-Lorain, OH Maintenance * Whole 230,041 39/085
OHIO Lawrence County Huntington-Ashland, WV-KY-OH Maintenance * Whole 62,450 39/087
OHIO Licking County Columbus, OH Maintenance * Whole 166,492 39/089
OHIO Lorain County Cleveland-Akron-Lorain, OH Maintenance * Whole 301,356 39/093
OHIO Medina County Cleveland-Akron-Lorain, OH Maintenance * Whole 172,332 39/103
OHIO Montgomery County Dayton-Springfield, OH Maintenance * Whole 535,153 39/113
OHIO Portage County Cleveland-Akron-Lorain, OH Maintenance * Whole 161,419 39/133
OHIO Scioto County Huntington-Ashland, WV-KY-OH Maintenance * Whole 79,499 39/145
OHIO Stark County Canton-Massillon, OH Maintenance * Whole 375,586 39/151
OHIO Summit County Cleveland-Akron-Lorain, OH Maintenance * Whole 541,781 39/153
OHIO Warren County Cincinnati-Hamilton, OH-KY-IN Maintenance * Whole 212,693 39/165
OHIO Washington County Parkersburg-Marietta, WV-OH Maintenance * Whole 61,778 39/167
PENNSYLVANIA Allegheny County Liberty-Clairton, PA Nonattainment Part 20,789 42/003
PENNSYLVANIA Allegheny County Pittsburgh-Beaver Valley, PA Maintenance * Part 1,206,540 42/003
PENNSYLVANIA Armstrong County Pittsburgh-Beaver Valley, PA Maintenance * Part 4,511 42/005
PENNSYLVANIA Beaver County Pittsburgh-Beaver Valley, PA Maintenance * Whole 170,539 42/007
PENNSYLVANIA Berks County Reading, PA Maintenance * Whole 411,442 42/011
PENNSYLVANIA Bucks County Philadelphia-Wilmington, PA-NJ-DE Maintenance * Whole 625,249 42/017
PENNSYLVANIA Butler County Pittsburgh-Beaver Valley, PA Maintenance * Whole 183,862 42/019
PENNSYLVANIA Cambria County Johnstown, PA Maintenance * Whole 143,679 42/021
PENNSYLVANIA Chester County Philadelphia-Wilmington, PA-NJ-DE Maintenance * Whole 498,886 42/029
PENNSYLVANIA Cumberland County Harrisburg-Lebanon-Carlisle, PA Maintenance * Whole 235,406 42/041
PENNSYLVANIA Dauphin County Harrisburg-Lebanon-Carlisle, PA Maintenance * Whole 268,100 42/043
PENNSYLVANIA Delaware County Philadelphia-Wilmington, PA-NJ-DE Maintenance * Whole 558,979 42/045
PENNSYLVANIA Greene County Pittsburgh-Beaver Valley, PA Maintenance * Part 2,818 42/059
PENNSYLVANIA Indiana County Johnstown, PA Maintenance * Part 13,244 42/063
PENNSYLVANIA Lancaster County Lancaster, PA Maintenance * Whole 519,445 42/071
PENNSYLVANIA Lawrence County Pittsburgh-Beaver Valley, PA Maintenance * Part 1,722 42/073
PENNSYLVANIA Lebanon County Harrisburg-Lebanon-Carlisle, PA Maintenance * Whole 133,568 42/075
PENNSYLVANIA Montgomery County Philadelphia-Wilmington, PA-NJ-DE Maintenance * Whole 799,874 42/091
PENNSYLVANIA Philadelphia County Philadelphia-Wilmington, PA-NJ-DE Maintenance * Whole 1,526,006 42/101
PENNSYLVANIA Washington County Pittsburgh-Beaver Valley, PA Maintenance * Whole 207,820 42/125
PENNSYLVANIA Westmoreland County Pittsburgh-Beaver Valley, PA Maintenance * Whole 365,169 42/129
PENNSYLVANIA York County York, PA Maintenance * Whole 434,972 42/133
TENNESSEE Anderson County Knoxville, TN Maintenance * Whole 75,129 47/001
TENNESSEE Blount County Knoxville, TN Maintenance * Whole 123,010 47/009
TENNESSEE Hamilton County Chattanooga, TN-GA-AL Maintenance * Whole 336,463 47/065
TENNESSEE Knox County Knoxville, TN Maintenance * Whole 432,226 47/093
TENNESSEE Loudon County Knoxville, TN Maintenance * Whole 48,556 47/105
TENNESSEE Roane County Knoxville, TN Maintenance * Part 2,602 47/145
VIRGINIA Alexandria city Washington, DC-MD-VA Maintenance * Whole 139,966 51/510
VIRGINIA Arlington County Washington, DC-MD-VA Maintenance * Whole 207,627 51/013
VIRGINIA Fairfax County Washington, DC-MD-VA Maintenance * Whole 1,081,726 51/059
VIRGINIA Fairfax city Washington, DC-MD-VA Maintenance * Whole 22,565 51/600
VIRGINIA Falls Church city Washington, DC-MD-VA Maintenance * Whole 12,332 51/610
VIRGINIA Loudoun County Washington, DC-MD-VA Maintenance * Whole 312,311 51/107
VIRGINIA Manassas Park city Washington, DC-MD-VA Maintenance * Whole 14,273 51/685
VIRGINIA Manassas city Washington, DC-MD-VA Maintenance * Whole 37,821 51/683
VIRGINIA Prince William County Washington, DC-MD-VA Maintenance * Whole 402,002 51/153
WEST VIRGINIA Berkeley County Martinsburg, WV-Hagerstown, MD Maintenance * Whole 104,169 54/003
WEST VIRGINIA Brooke County Steubenville-Weirton, OH-WV Maintenance * Whole 24,069 54/009
WEST VIRGINIA Cabell County Huntington-Ashland, WV-KY-OH Maintenance * Whole 96,319 54/011
WEST VIRGINIA Hancock County Steubenville-Weirton, OH-WV Maintenance * Whole 30,676 54/029
WEST VIRGINIA Kanawha County Charleston, WV Maintenance * Whole 193,063 54/039
WEST VIRGINIA Marshall County Wheeling, WV-OH Maintenance * Whole 33,107 54/051
WEST VIRGINIA Mason County Huntington-Ashland, WV-KY-OH Maintenance * Part 2,406 54/053
WEST VIRGINIA Ohio County Wheeling, WV-OH Maintenance * Whole 44,443 54/069
WEST VIRGINIA Pleasants County Parkersburg-Marietta, WV-OH Maintenance * Part 1,582 54/073
WEST VIRGINIA Putnam County Charleston, WV Maintenance * Whole 55,486 54/079
WEST VIRGINIA Wayne County Huntington-Ashland, WV-KY-OH Maintenance * Whole 42,481 54/099
WEST VIRGINIA Wood County Parkersburg-Marietta, WV-OH Maintenance * Whole 86,956 54/107


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