thumb|upright=1.15|right|Landmark 19th-century rowhouses on tree-lined Kent Street, in Greenpoint Historic District thumb|right|Park Slope right|thumb|150–159 Willow Street, three original red-brick early 19th-century Federal Style houses in Brooklyn Heights Brooklyn's neighborhoods are dynamic in ethnic composition. For example, the early to mid-20th century, Brownsville had a majority of Jewish residents; since the 1970s it has been majority African American. Midwood during the early 20th century was filled with ethnic Irish, then filled with Jewish residents for nearly 50 years, and is slowly becoming a Pakistani enclave. Brooklyn's most populous racial group, white, declined from 97.2% in 1930 to 46.9% by 1990.Gibson, Campbell; and Jung, Kay. "Historical Census Statistics on Population Totals by Race, 1790 to 1990, and by Hispanic Origin, 1970 to 1990, for Large Cities and Other Urban Places in the United States" , United States Census Bureau, February 2005. Retrieved November 19, 2016.
tHumb|UPright=1.15|rigHt|lANdMArK 19TH-CeNtury rowhoUses on TreE-lined kENT streeT, in grEenpoiNT historic DIstRicT ThuMb|right|pArk slope right|thUmB|150–159 wiLLow stREet, ThRee oriGinal red-bRIck earLY 19th-centUry federal styLe houses in brOoklyN heigHts broOKlyN'S neigHboRHOODs are DynaMic in ethNiC composiTIoN. FoR examPle, The earlY tO mId-20Th centurY, BrOwNsviLlE had A MajoRiTy of JEWIsh rEsiDEnTS; SiNcE The 1970s it HAS beeN MajoRITY AFricAn amErICan. midwooD durIng thE eaRlY 20tH cENTurY waS FiLled WiTh ethnic irISh, then filLed wiTh JeWish residents For nEaRly 50 yEars, and is SLowly bEComIng A pAkisTAni enCLaVE. bROOklYn's moSt populOUs RAcIal groUP, wHite, declineD From 97.2% in 1930 to 46.9% By 1990.gIbsON, campBell; And Jung, KAy. "hiSTorical census statisTics On popuLATion TOtals bY RacE, 1790 to 1990, aNd by hispanic oRIgIn, 1970 TO 1990, FOr laRge CitiEs AnD otHer urban pLACeS in tHe uNited STates" , unIteD sTates ceNsus BUrEau, febrUarY 2005. Retrieved novemBEr 19, 2016.