Throughout the first half of the 20th century, Chaska's population averaged about 2,000 and the nature of the City remained unchanged. The City retained its small town image until the 1950s when the transition to a metropolitan community began. The expansion of the seven county metropolitan area reached Chaska in the 1960s. With that expansion came the introduction of the Jonathan New Town design concept in 1966. The Jonathan "new town" development within Chaska brought new land, new jobs and new people to the community.
This period of transition and expansion continues today. Dozens of modern industries have located to Chaska and continue to do so; residential construction adds 300 to 400 new homes per year; commercial business continues to expand offering a variety of retail and service opportunities to its residents; redevelopment of commercial areas in the downtown began in the 1980s and still continues. Although the community has seen much growth, development regulations and sound planning have ensured Chaska's small sense of community and the preservation of its rich heritage.