The city adopted its first zoning code in 1951, which said “that land overcrowded with buildings is both the most prevalent and worst evil of cities.”
A major update to zoning occurred in the 1970s to increase the types of zoning. In 2023, the city had 31 types of zoning designationp.
Nevertheless, developers of property have tended to use the three most-used residential districts from the 1970s: residential agricultural, residential single-family up to four houses an acre, and residential multifamily up to 24 units an acre.