Tracking metropolitan America into the 21st century - Population ...

DurhamMetroSAFigure 8. Raleigh-Durham-Cary Combined Statistical AreaOrangeChathamPersonDurhamWakeJohnstonFranklinRaleigh-CaryMetroSADunn MicroSA Old MSA counties (6)HarnettNew Raleigh-Cary MetroSAcounties (3)New Durham MetroSAcounties (4)Other CSA ComponentsMicro counties (1)Source: OMBFigure 9. Dallas-Fort Worth Combined Statistical AreaGainesville MicroSACookeDallas-Fort Worth-Arlington MetroSASeparating a Metro Area intoTwo or More New Areas—Raleigh-DurhamOf the 102 largest MSAs/PMSAs, ninesplit into two or more metro areasunder the new system. These metroareas are scattered around the country.Similar to those metro areas that lostcounties, the cleaving of these metroareas reflects the stricter commutingthresholds under the new system, andperhaps an emerging economic independenceseparating formerly closeknitneighbors.Under the old standards, the areaof North Carolina known as the“research triangle”—the Raleigh-Durham-Chapel Hill, NC MSA–consistedof six counties. The newstandards split the triangle into twometropolitan areas: the Durham, NCMetroSA and the Raleigh-Cary MetroSA.Together, the two metro areasconsist of the same six counties plusone additional county in the Durhammetro area. The Raleigh-Durham-Cary, NC CSA combines these twoMetroSAs with the new one-countyDunn, NC MicroSA (Figure 8). LikeRaleigh-Durham, the new standardsalso split the former Vallejo-Fairfield-Napa, CA PMSA into two MetroSAs,and the Grand Rapids-Muskegon-Holland, MI MSA into three MetroSAsand one MicroSA.Minerall WellsMicroSAPalo PintoGranburyMicroSAParkerHoodWiseSomervellOld Dallas PMSA counties (8)Old Fort Worth-Arlington PMSA counties (4)New Dallas-Fort Worth-Arlington MetroSA counties (12)Other CSA ComponentsMicro counties (5)Source: OMBTarrantJohnsonOld Dallas-Fort Worth CMSADentonDeltaCollinHuntRockwallDallasKaufmanAthens MicroSAEllisHendersonCombining Two or More MetroAreas into One Area—Dallas-Ft. Worth and New YorkTwenty-three MSAs and PMSAs underthe old system combined with neighboringareas to form new, larger MetroSAs.In Dallas-Fort Worth, the combinationproduced a region with severaldifferent layers. Under the old standards,Dallas-Fort Worth, TX was a12-county CMSA, divided into twoPMSAs: Dallas (with eight counties)and Fort Worth-Arlington (with fourcounties) (Figure 9). The new standardscreate the unified Dallas-FortWorth-Arlington, TX MetroSA, comprisedof 12 counties (two of whichNovember 2004 • The Brookings Institution The Living Cities Census Series 11