Where and when was the first Urban Growth Boundary established?

• A. Lexington, Kentucky in 1958
• B. Portland, Oregon in 1960
• C. San Francisco in 1956
• D. Lexington, Kentucky in 1968

Answer: (A)

Urban growth boundaries are lines drawn around a city to concentrate development within the boundary and protect farmland and open space outside it. This approach helps curb sprawl, guides infrastructure investment, and preserves rural lands for the long term.

The first widely recognized U.S. example came from the Portland, Oregon region, developed as part of Oregon’s statewide growth-management framework in the 1970s. The boundary was adopted by the regional government (Metro) around 1979–1980, following the state’s growth-management legislation (SB 100). So, Portland is the location most often cited as the origin of the urban growth boundary concept in practice, with the pivotal action occurring in the late 1970s. The other options don’t reflect the historical origin of UGBs in the U.S.