as the gilded age ended and the depression hit the country, many of the estates and mansions were destroyed and made way for the building of houses in their place. many of the communities that were formed in the early stages of cheltenham remained, and still exist to this day. as the 20th century progressed, many people moved out of the city and into the first community over the city line, cheltenham. one of the major groups to come to cheltenham was koreans. the original koreatown was located in the olney section of philadelphia, but eventually was moved north to logan. large pockets of koreans were eventually established in cheltenham, and also in upper darby township and west philadelphia. many other races and ethnicities migrated to cheltenham to make it one of the most diverse municipalities in the delaware valley. by the 2000 census, cheltenham was one of only two (the other being norristown) municipalities in montgomery county that was considered "diverse" (20–60% of the population is non-white). with the population increase, the township's identity changed from being a community of prominent philadelphians and their mansions to several distinct communities consisting of densely populated rowhouses, apartments, and townhouses that overflowed from neighboring north philadelphia (especially in la mott and parts of cheltenham village), but also maintaining some of the historic neighborhoods of the past in wyncote, elkins park, and melrose park.