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Appendix A. Comparing Metropolitan Area Definitions from 1990 to 1999

The United States Office of Management and Budget (OMB) defines metropolitan areas (MAs) according to published standards that are applied to Census Bureau data. MAs in this report are based on application of 1990 standards (which appeared in the Federal Register on March 30, 1990) to 1990 decennial census data and to subsequent Census Bureau population estimates and special census data. This report uses the June 30, 1999 definition of MAs (new definitions were published by OMB on June 3, 2003, but are not used in this report).

The general concept of an MA is that of a core area containing a large population nucleus, together with adjacent communities having a high degree of economic and social integration with that core. The basic building block used in the 1999 definition is a county (except for the New England States where cities and towns are used as the buiding blocks). The core is usually a county/counties containing a city of population greater than 50,000 people OR a Census defined urbanized area. Outlying counties are added to the MA based on population density and commute behavior. For more information on the June 30, 1999 definition for MSA geography, please refer to the Census Bureau website at:http://www.census.gov/population/www/estimates/metroarea.cfml

The tables in this section provide a list of counties for each of the 49 largest MSAs for both the 1990, and June 1999 definitions. Because of definitional differences, the list does not include MSA definitions for New York, Boston, Providence, and Hartford. A list of geographies for these MSAs can be found at www.census.gov/population/estimates/metro-city/99mfips.txt.

Atlanta, GA MSA
FIPSMetropolitan Area and Component Names19991990Remarks
13013Barrow County** 
13015Bartow County*  
13035Butts County * 
13045Carroll County*  
13057Cherokee County** 
13063Clayton County** 
13067Cobb County** 
13077Coweta County** 
13089DeKalb County** 
13097Douglas County** 
13113Fayette County** 
13117Forsyth County** 
13121Fulton County** 
13135Gwinnett County** 
13151Henry County** 
13217Newton County** 
13223Paulding County** 
13227Pickens County*  
13247Rockdale County** 
13255Spalding County** 
13297Walton County** 
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Austin-San Marcos, TX MSA
FIPSMetropolitan Area and Component Names19991990Remarks
48021Bastrop County*  
48055Caldwell County*  
48209Hays County** 
48453Travis County** 
48491Williamson County** 
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Buffalo-Niagara Falls, NY MSA
FIPSMetropolitan Area and Component Names19991990Remarks
   Bu 
36029Erie County**Buffalo and Niagara were two different MSAs in 1990
   Ni
36063Niagara County** 
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Charlotte-Gastonia-Rock Hill, NC-SC MSA
FIPSMetropolitan Area and Component Names19991990Remarks
37025Cabarrus County, NC** 
37071Gaston County, NC** 
37109Lincoln County, NC** 
37119Mecklenburg County, NC** 
37159Rowan County, NC** 
37179Union County, NC** 
45091York County, SC** 
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Chicago-Gary-Kenosha, IL-IN-WI CMSA
FIPSMetropolitan Area and Component Names19991990Remarks
17089Kane County * 
17093Kendall County * 
17031Cook County** 
17037DeKalb County*  
17043DuPage County** 
17063Grundy County** 
17089Kane County*  
17093Kendall County*  
17097Lake County** 
17111McHenry County** 
17197Will County** 
18089Lake County** 
18127Porter County** 
17091Kankakee County*  
55059Kenosha County** 
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Cincinnati-Hamilton, OH-KY-IN CMSA
FIPSMetropolitan Area and Component Names19991990Remarks
 Cincinnati, OH-KY-IN PMSA   
18029Dearborn County, IN** 
18115Ohio County, IN*  
21015Boone County, KY** 
21037Campbell County, KY** 
21077Gallatin County, KY*  
21081Grant County, KY*  
21117Kenton County, KY** 
21191Pendleton County, KY*  
39015Brown County, OH*  
39025Clermont County, OH** 
39061Hamilton County, OH** 
39165Warren County, OH** 
 Hamilton-Middletown, OH PMSA   
39017Butler County** 
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Cleveland-Akron, OH CMSA
FIPSMetropolitan Area and Component Names19991990Remarks
 Akron, OH PMSA   
39133Portage County** 
39153Summit County** 
 Cleveland-Lorain-Elyria, OH PMSA   
39007Ashtabula County*  
39035Cuyahoga County** 
39055Geauga County** 
39085Lake County** 
39103Medina County** 
   LOLorrain was its own PMSA in 1990
39093Lorain County** 
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Columbus, OH MSA
FIPSMetropolitan Area and Component Names19991990Remarks
39041Delaware County** 
39045Fairfield County** 
39049Franklin County** 
39089Licking County** 
39097Madison County** 
39129Pickaway County** 
39159Union County * 
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Dallas-Fort Worth, TX CMSA
FIPSMetropolitan Area and Component Names19991990Remarks
 Dallas, TX PMSA   
48085Collin County** 
48113Dallas County** 
48121Denton County** 
48139Ellis County** 
48213Henderson County*  
48231Hunt County*  
48257Kaufman County** 
48397Rockwall County** 
 Fort Worth-Arlington, TX PMSA   
48221Hood County*  
48251Johnson County** 
48367Parker County** 
48439Tarrant County** 
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Denver-Boulder-Greeley, CO CMSA
FIPSMetropolitan Area and Component Names19991990Remarks
 Boulder-Longmont, CO PMSA   
8013Boulder County** 
8001Adams County** 
8005Arapahoe County** 
8031Denver County** 
8035Douglas County** 
8059Jefferson County** 
 Greeley, CO PMSA GRGreeley was not part of Denver CMSA the 1990 definition
8123Weld County**
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Detroit-Ann Arbor-Flint, MI CMSA
FIPSMetropolitan Area and Component Names19991990Remarks
 Ann Arbor, MI PMSA   
26091Lenawee County*  
26093Livingston County*  
26161Washtenaw County** 
 Detroit, MI PMSA   
26087Lapeer County** 
26093Livingston County * 
26099Macomb County** 
26115Monroe County** 
26125Oakland County** 
26147St. Clair County** 
26163Wayne County** 
 Flint, MI PMSA   
26049Genesee County** 
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Grand Rapids-Muskegon-Holland, MI MSA
FIPSMetropolitan Area and Component Names19991990Remarks
26005Allegan County*GR 
26081Kent County**Grand Rapids and Muskegon were different MSAs in 1990
26139Ottawa County**
   MU 
26121Muskegon County** 
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Greensboro--Winston-Salem--High Point, NC MSA
FIPSMetropolitan Area and Component Names19991990Remarks
37001Alamance County*  
37057Davidson County** 
37059Davie County** 
37067Forsyth County** 
37081Guilford County** 
37151Randolph County** 
37169Stokes County** 
37197Yadkin County** 
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Houston-Galveston-Brazoria, TX CMSA
FIPSMetropolitan Area and Component Names19991990Remarks
 Brazoria, TX PMSA   
48039Brazoria County** 
 Galveston-Texas City, TX PMSA   
48167Galveston County** 
 Houston, TX PMSA   
48071Chambers County*  
48157Fort Bend County** 
48201Harris County** 
48291Liberty County** 
48339Montgomery County** 
48473Waller County** 
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Indianapolis, IN MSA
FIPSMetropolitan Area and Component Names19991990Remarks
18011Boone County** 
18057Hamilton County** 
18059Hancock County** 
18063Hendricks County** 
18081Johnson County** 
18095Madison County*  
18097Marion County** 
18109Morgan County** 
18145Shelby County** 
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Jacksonville, FL MSA
FIPSMetropolitan Area and Component Names19991990Remarks
12019Clay County** 
12031Duval County** 
12089Nassau County** 
12109St. Johns County** 
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Kansas City, MO-KS MSA
FIPSMetropolitan Area and Component Names19991990Remarks
   KA 
20091Johnson County, KS**Kansas City was divided into Kansas, KS, and Kansas MO MSAs in 1990
20103Leavenworth County, KS** 
20121Miami County, KS** 
20209Wyandotte County, KS** 
   MO 
29037Cass County, MO** 
29047Clay County, MO** 
29049Clinton County, MO*  
29095Jackson County, MO** 
29107Lafayette County, MO** 
29165Platte County, MO** 
29177Ray County, MO** 
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Las Vegas, NV-AZ MSA
FIPSMetropolitan Area and Component Names19991990Remarks
4015Mohave County, AZ*  
32003Clark County, NV** 
32023Nye County, NV*  
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Los Angeles-Riverside-Orange County, CA CMSA
FIPSMetropolitan Area and Component Names19991990Remarks
 Los Angeles-Long Beach, CA PMSA   
6037Los Angeles County** 
 Orange County, CA PMSA   
6059Orange County** 
 Riverside-San Bernardino, CA PMSA   
6065Riverside County** 
6071San Bernardino County** 
6111Ventura County** 
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Louisville, KY-IN MSA
FIPSMetropolitan Area and Component Names19991990Remarks
18019Clark County, IN** 
18043Floyd County, IN** 
18061Harrison County, IN** 
18143Scott County, IN*  
21029Bullitt County, KY** 
21111Jefferson County, KY** 
21185Oldham County, KY** 
21211Shelby County, KY * 
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Memphis, TN-AR-MS MSA
FIPSMetropolitan Area and Component Names19991990Remarks
5035Crittenden County, AR** 
28033DeSoto County, MS** 
47047Fayette County, TN*  
47157Shelby County, TN** 
47167Tipton County, TN** 
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Miami-Fort Lauderdale, FL CMSA
FIPSMetropolitan Area and Component Names19991990Remarks
 Fort Lauderdale, FL PMSA   
12011Broward County** 
 Miami, FL PMSA   
12025Dade County * 
12086Miami-Dade County*  
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Milwaukee-Racine, WI CMSA
FIPSMetropolitan Area and Component Names19991990Remarks
 Milwaukee-Waukesha, WI PMSA   
55079Milwaukee County** 
55089Ozaukee County** 
55131Washington County** 
55133Waukesha County** 
 Racine, WI PMSA   
55101Racine County** 
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Minneapolis-St. Paul, MN-WI MSA
FIPSMetropolitan Area and Component Names19991990Remarks
27003Anoka County, MN** 
27019Carver County, MN** 
27025Chisago County, MN** 
27037Dakota County, MN** 
27053Hennepin County, MN** 
27059Isanti County, MN** 
27123Ramsey County, MN** 
27139Scott County, MN** 
27141Sherburne County, MN*  
27163Washington County, MN** 
27171Wright County, MN** 
55093Pierce County, WI*  
55109St. Croix County, WI** 
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Nashville, TN MSA
FIPSMetropolitan Area and Component Names19991990Remarks
47021Cheatham County** 
47037Davidson County** 
47043Dickson County** 
47147Robertson County** 
47149Rutherford County** 
47165Sumner County** 
47187Williamson County** 
47189Wilson County** 
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New Orleans, LA MSA
FIPSMetropolitan Area and Component Names19991990Remarks
22051Jefferson Parish** 
22071Orleans Parish** 
22075Plaquemines Parish*  
22087St. Bernard Parish** 
22089St. Charles Parish** 
22093St. James Parish*  
22095St. John the Baptist Parish** 
22103St. Tammany Parish** 
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Norfolk-Virginia Beach-Newport News, VA-NC MSA
FIPSMetropolitan Area and Component Names19991990Remarks
37053Currituck County, NC*  
51073Gloucester County, VA** 
51093Isle of Wight County, VA*  
51095James City County, VA** 
51115Mathews County, VA*  
51199York County, VA** 
51550Chesapeake city, VA** 
51650Hampton city, VA** 
51700Newport News city, VA** 
51710Norfolk city, VA** 
51735Poquoson city, VA** 
51740Portsmouth city, VA** 
51800Suffolk city, VA** 
51810Virginia Beach city, VA** 
51830Williamsburg city, VA** 
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Oklahoma City, OK MSA
FIPSMetropolitan Area and Component Names19991990Remarks
40017Canadian County** 
40027Cleveland County** 
40083Logan County** 
40087McClain County** 
40109Oklahoma County** 
40125Pottawatomie County** 
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Orlando, FL MSA
FIPSMetropolitan Area and Component Names19991990Remarks
12069Lake County*  
12095Orange County** 
12097Osceola County** 
12117Seminole County** 
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Philadelphia-Wilmington-Atlantic City, PA-NJ-DE-MD CMSA
FIPSMetropolitan Area and Component Names19991990Remarks
 Atlantic-Cape May, NJ PMSA   
34001Atlantic County* 
34009Cape May County* 
 Philadelphia, PA-NJ PMSA   
34005Burlington County, NJ**
34007Camden County, NJ**
34015Gloucester County, NJ** 
34033Salem County, NJ**
42017Bucks County, PA**
42029Chester County, PA**
42045Delaware County, PA** 
42091Montgomery County, PA** 
42101Philadelphia County, PA** 
 Vineland-Millville-Bridgeton, NJ PMSA   
34011Cumberland County** 
10003New Castle County, DE** 
24015Cecil County, MD** 
     
34021Mercer County * 
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Phoenix-Mesa, AZ MSA
FIPSMetropolitan Area and Component Names19991990Remarks
4013Maricopa County** 
4021Pinal County*  
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Pittsburgh, PA MSA
FIPSMetropolitan Area and Component Names19991990Remarks
42019Butler County*PIPittsburgh, PA was divided into two MSAs in 1990
42007Beaver County**
   BEBeaver County, PA PMSA
42003Allegheny County**Pittsburgh, PA PMSA
42051Fayette County** 
42125Washington County** 
42129Westmoreland County** 
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Portland-Salem, OR-WA CMSA
FIPSMetropolitan Area and Component Names19991990Remarks
 Portland-Vancouver, OR-WA PMSA   
41005Clackamas County, OR** 
41009Columbia County, OR*  
41051Multnomah County, OR** 
41067Washington County, OR** 
41071Yamhill County, OR** 
53011Clark County, WA** 
 Salem, OR PMSA  Salem was not part of the CMSA in 1990.
41047Marion County*  
41053Polk County*  
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Raleigh-Durham-Chapel Hill, NC MSA
FIPSMetropolitan Area and Component Names19991990Remarks
37037Chatham County*  
37063Durham County** 
37069Franklin County** 
37101Johnston County*  
37135Orange County** 
37183Wake County** 
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Rochester, NY MSA
FIPSMetropolitan Area and Component Names19991990Remarks
36037Genesee County*  
36051Livingston County** 
36055Monroe County** 
36069Ontario County** 
36073Orleans County** 
36117Wayne County** 
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Sacramento-Yolo, CA CMSA
FIPSMetropolitan Area and Component Names19991990Remarks
 Sacramento, CA PMSA   
6017El Dorado County** 
6061Placer County** 
6067Sacramento County** 
 Yolo, CA PMSA   
6113Yolo County** 
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Salt Lake City-Ogden, UT MSA
FIPSMetropolitan Area and Component Names19991990Remarks
49011Davis County** 
49035Salt Lake County** 
49057Weber County** 
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San Antonio, TX MSA
FIPSMetropolitan Area and Component Names19991990Remarks
48029Bexar County** 
48091Comal County** 
48187Guadalupe County** 
48493Wilson County*  
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San Diego, CA MSA
FIPSMetropolitan Area and Component Names19991990Remarks
6073San Diego County** 
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San Francisco-Oakland-San Jose, CA CMSA
FIPSMetropolitan Area and Component Names19991990Remarks
 Oakland, CA PMSA   
6001Alameda County** 
6013Contra Costa County** 
 San Francisco, CA PMSA   
6041Marin County** 
6075San Francisco County** 
6081San Mateo County** 
 San Jose, CA PMSA   
6085Santa Clara County** 
 Santa Cruz-Watsonville, CA PMSA   
6087Santa Cruz County** 
 Santa Rosa, CA PMSA   
6097Sonoma County** 
 Vallejo-Fairfield-Napa, CA PMSA   
6055Napa County** 
6095Solano County** 
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Seattle-Tacoma-Bremerton, WA CMSA
FIPSMetropolitan Area and Component Names19991990Remarks
 Bremerton, WA PMSA   
53035Kitsap County*  
 Olympia, WA PMSA   
53067Thurston County*  
 Seattle-Bellevue-Everett, WA PMSA   
53029Island County*  
53033King County** 
53061Snohomish County** 
 Tacoma, WA PMSA   
53053Pierce County** 
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St. Louis, MO-IL MSA
FIPSMetropolitan Area and Component Names19991990Remarks
   AL 
17083Jersey County, IL**St. Louis was divided into 3 PMSAs in 1980:
17119Madison County, IL**Alton-Granite City, IL PMSA
29055Crawford County, MO (pt.)*** East St. Louis-Belleville, IL PMSA
   EASTSt. Louis, MO-IL PMSA
17027Clinton County, IL**** The portion of St. Louis in Crawford county is not used by Census Bureau for reporting data
17163St. Clair County, IL**
   St.Lo
17133Monroe County, IL** 
29071Franklin County, MO** 
29099Jefferson County, MO** 
29113Lincoln County, MO*  
29183St. Charles County, MO** 
29189St. Louis County, MO** 
29219Warren County, MO*  
29510St. Louis city, MO** 
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Tampa-St. Petersburg-Clearwater, FL MSA
FIPSMetropolitan Area and Component Names19991990Remarks
12053Hernando County** 
12057Hillsborough County** 
12101Pasco County** 
12103Pinellas County** 
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Washington-Baltimore, DC-MD-VA-WV CMSA
FIPSMetropolitan Area and Component Names19991990Remarks
 Baltimore, MD PMSA BABaltimore and Washington, D.C. were separate MSAs in 1983
24003Anne Arundel County**
24005Baltimore County** 
24013Carroll County** 
24025Harford County** 
24027Howard County** 
24035Queen Anne's County** 
24510Baltimore city** 
 Hagerstown, MD PMSA HAHagerstown was not included in a large MSA in 1990
24043Washington County**
 Washington, DC-MD-VA-WV PMSA WA 
11001District of Columbia** 
24009Calvert County, MD** 
24017Charles County, MD** 
24021Frederick County, MD** 
24031Montgomery County, MD** 
24033Prince George's County, MD** 
51013Arlington County, VA** 
51043Clarke County, VA*  
51047Culpeper County, VA*  
51059Fairfax County, VA** 
51061Fauquier County, VA*  
51099King George County, VA*  
51107Loudoun County, VA** 
51153Prince William County, VA** 
51177Spotsylvania County, VA*  
51179Stafford County, VA** 
51187Warren County, VA*  
51510Alexandria city, VA** 
51600Fairfax city, VA** 
51610Falls Church city, VA** 
51630Fredericksburg city, VA*  
51683Manassas city, VA** 
51685Manassas Park city, VA** 
54003Berkeley County, WV*  
54037Jefferson County, WV*  
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West Palm Beach-Boca Raton, FL MSA
FIPSMetropolitan Area and Component Names19991990Remarks
12099Palm Beach County** 
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Updated: 04/28/2011
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