Question: What is the Core-based statistical area whose Encompassing combined statistical area is an example of twin cities in the sense of geographical proximity ?

text: List of core-based statistical areas
United States
An enlargeable map of the 929 core-based statistical areas ( CBSAs ) of the United States and Puerto Rico . The 388 metropolitan statistical areas ( MSAs ) are shown in medium green . The 541 micropolitan statistical areas ( μSAs ) are shown in light green . The following sortable table lists the 917 core-based statistical areas ( CBSAs ) of the United States with the following information : The CBSA rank by population as of July 1 , 2012 , as estimated by the United States Census Bureau [ 4 ] The CBSA name as designated by the United States Office of Management and Budget [ 1 ] The CBSA population as of July 1 , 2012 , as estimated by the United States Census Bureau [ 4 ] The CBSA population as of April 1 , 2010 , as enumerated by the 2010 United States Census [ 4 ] The percent CBSA population change from April 1 , 2010 , to July 1 , 2012 [ 4 ] The Combined Statistical Area ( CSA ) [ 5 ] if the CBSA is a component [ 1 ]
The United States Office of Management and Budget (OMB) has defined 917 core-based statistical areas (CBSAs) for the United States and 12 for Puerto Rico. The OMB defines a core-based statistical area as one or more adjacent counties or county equivalents that have at least one urban core area of at least 10,000 population, plus adjacent territory that has a high degree of social and economic integration with the core as measured by commuting ties. The 929 Core Based Statistical Areas currently defined by the OMB include the 388 metropolitan statistical areas (MSAs), which have an urban core population of at least 50,000, and the 541 Micropolitan statistical areas (μSAs), which have an urban core population of at least 10,000 but less than 50,000.
Rank Core-based statistical area 2012 estimate 2010 Census Change Encompassing combined statistical area
1 New York-Newark-Jersey City , NY-NJ-PA Metropolitan Statistical Area 19,831,858 19,567,410 +1.35% New York-Newark , NY-NJ-CT-PA Combined Statistical Area
2 Los Angeles-Long Beach-Anaheim , CA Metropolitan Statistical Area 13,052,921 12,828,837 +1.75% Los Angeles-Long Beach , CA Combined Statistical Area
3 Chicago-Naperville-Elgin , IL-IN-WI Metropolitan Statistical Area 9,522,434 9,461,105 +0.65% Chicago-Naperville , IL-IN-WI Combined Statistical Area
4 Dallas-Fort Worth-Arlington , TX Metropolitan Statistical Area 6,700,991 6,426,214 +4.28% Dallas-Fort Worth , TX-OK Combined Statistical Area
5 Houston-The Woodlands-Sugar Land , TX Metropolitan Statistical Area 6,177,035 5,920,416 +4.33% Houston-The Woodlands , TX Combined Statistical Area
6 Philadelphia-Camden-Wilmington , PA-NJ-DE-MD Metropolitan Statistical Area 6,018,800 5,965,343 +0.90% Philadelphia-Reading-Camden , PA-NJ-DE-MD Combined Statistical Area
7 Washington-Arlington-Alexandria , DC-VA-MD-WV Metropolitan Statistical Area 5,860,342 5,636,232 +3.98% Washington-Baltimore-Arlington , DC-MD-VA-WV-PA Combined Statistical Area
8 Miami-Fort Lauderdale-West Palm Beach , FL Metropolitan Statistical Area 5,762,717 5,564,635 +3.56% Miami-Fort Lauderdale-Port St. Lucie , FL Combined Statistical Area
9 Atlanta-Sandy Springs-Roswell , GA Metropolitan Statistical Area 5,457,831 5,286,728 +3.24% Atlanta-Athens-Clarke County-Sandy Springs , GA Combined Statistical Area
10 Boston-Cambridge-Newton , MA-NH Metropolitan Statistical Area 4,640,802 4,552,402 +1.94% Boston-Worcester-Providence , MA-RI-NH-CT Combined Statistical Area
11 San Francisco-Oakland-Hayward , CA Metropolitan Statistical Area 4,455,560 4,335,391 +2.77% San Jose-San Francisco-Oakland , CA Combined Statistical Area
12 Riverside-San Bernardino-Ontario , CA Metropolitan Statistical Area 4,350,096 4,224,851 +2.96% Los Angeles-Long Beach , CA Combined Statistical Area
13 Phoenix-Mesa-Scottsdale , AZ Metropolitan Statistical Area 4,329,534 4,192,887 +3.26%
14 Detroit-Warren-Dearborn , MI Metropolitan Statistical Area 4,292,060 4,296,250 −0.10% Detroit-Warren-Ann Arbor , MI Combined Statistical Area
15 Seattle-Tacoma-Bellevue , WA Metropolitan Statistical Area 3,552,157 3,439,809 +3.27% Seattle-Tacoma , WA Combined Statistical Area
16 Minneapolis-St. Paul-Bloomington , MN-WI Metropolitan Statistical Area 3,422,264 3,348,859 +2.19% Minneapolis-St. Paul , MN-WI Combined Statistical Area
17 San Diego-Carlsbad , CA Metropolitan Statistical Area 3,177,063 3,095,313 +2.64%
18 Tampa-St. Petersburg-Clearwater , FL Metropolitan Statistical Area 2,842,878 2,783,243 +2.14%
19 St. Louis , MO-IL Metropolitan Statistical Area 2,795,794 2,787,701 +0.29% St. Louis-St. Charles-Farmington , MO-IL Combined Statistical Area
20 Baltimore-Columbia-Towson , MD Metropolitan Statistical Area 2,753,149 2,710,489 +1.57% Washington-Baltimore-Arlington , DC-MD-VA-WV-PA Combined Statistical Area