Chicago-Naperville, IL-IN-WI Combined Statistical Area W M I I S C MILWAUKEE C DANE JEFFERSON WAUKESHA H O I OTTAWA G IOWA N A S I N N RACINE GREEN ROCK WALWORTH ALLEGAN LAFAYETTE KENOSHA WISCONSIN ILLINOIS Lake County- Kenosha County VAN STEPHENSON BUREN WINNEBAGO BOONE McHENRY LAKE Chicago- Naperville Lake Michigan Arlington N Heights S KEY I CARROLL 1 Evanston A O OGLE Elgin 2 G 1 Hoffman Estates I 3 Skokie N I H 2 Schaumburg L Elgin DuPAGE C L I 3 Des Plaines COOK I KANE Chicago- CHICAGO- M DeKALB Naperville- NAPERVILLE- BERRIEN Arlington Chicago JOLIET Heights WHITESIDE LEE Naperville Michigan MICHIGAN JOSEPH ST. CHICAGO- City CITY-LA NAPERVILLE- PORTE ELGIN Gary La Porte KENDALL LaPORTE WILL MICHIGAN CITY-LA Chicago- LAKE PORTER PORTE MARSHALL Ottawa-Peru LaSALLE Naperville- BUREAU Peru Ottawa Michigan City HENRY STARKE Ottawa-Streator GRUNDY Gary KANKAKEE PUTNAM KANKAKEE FULTON STARK Kankakee KANKAKEE-BRADLEY JASPER PULASKI MARSHALL NEWTON LIVINGSTON CASS WOODFORD PEORIA IROQUOIS WHITE S A I N O A N I I BENTON CARROLL D N LL I McLEAN I FULTON TAZEWELL FORD TIPPECANOE VERMILION WARREN CLINTON MASON LEGEND Chicago-Naperville 2012 Combined Statistical Area KANKAKEE 2012 Metropolitan Statistical Area Ottawa-Peru 2012 Micropolitan Statistical Area Elgin 2012 Metropolitan Divisions 0 10 20 30 40Kilometers Gary 2012 Principal City Chicago-Naperville- 0 10 20 30 40Miles Michigan City 2007 Combined Statistical Area KANKAKEE-BRADLEY 2007 Metropolitan Statistical Area Ottawa-Streator 2007 Micropolitan Statistical Area 2012 Combined Statistical Area (CSA) and Metropolitan/Micropolitan ILLINOIS State or Statistical Equivalent Statistical Area (CBSA) boundaries and names are as of February 2013. COOK County or Statistical Equivalent 2007 Combined Statistical Areas (CSA) and Metropolitan/Micropolitan Statistical Areas (CBSA) are as of December 2006. All other boundaries and names are as of January 2012. U.S. DEPARTMENT OF COMMERCE Economics and Statistics Administration U.S. Census Bureau 2012 Economic Census.