Editing Ozaukee County, Wisconsin (section)

===20th century===
From 1908 to 1940, [[the Milwaukee Electric Railway and Light Company]] (TMERL) provided electric [[interurban]] passenger and freight service from Sheboygan to Milwaukee with stops at Belgium, Port Washington, Grafton, Cedarburg, Thiensville, Mequon, and other villages as well as major road crossings within Ozaukee County. The interurban cars ran approximately once per hour and delivered Ozaukee County agricultural products, such as milk and meat, to Milwaukee grocers and butchers. In 1940, the interurban ceased servicing Sheboygan due to declining ridership. Port Washington became the line's new northern terminus<ref>Classic Trains Magazine, Vol 20, No. 2, Summer 2020 issue, p 52.</ref> before the Ozaukee County line ceased operation in 1948.<ref name="ReferenceB" />

Ozaukee County's communities experienced significant population growth during the [[suburbanization]] that followed World War II. Between 1940 and 1980, the population more than tripled, from 18,985 to 66,981. Although the interurban to Milwaukee declined service and finally ceased operation after the war, the construction of [[Interstate 43]] in the mid-1960s allowed more residents to commute long distances to jobs and this encouraged residential home construction.<ref name="ReferenceB" /> Communities that experienced the most significant population growth, such as Cedarburg and Grafton, began to annex agricultural land for residential subdivisions and retail commercial development.<ref>{{cite web|title=Encyclopedia of Milwaukee: Village of Grafton|url=https://emke.uwm.edu/entry/village-of-grafton/|publisher=University of Wisconsin-Milwaukee|access-date=January 2, 2020}}</ref> The previously rural Town of Mequon became increasingly suburban and incorporated in 1957 as the City of Mequon. Today, it is the largest and most populous city in Ozaukee County.