In the years following World War II, the legislature of the State of Michigan enacted laws making it increasingly difficult for incorporated cities to expand by annexing adjacent territory contained within townships. Townships, which had historically served a rural population, were given the ability to provide nearly all of the same services that an incorporated city can. Residential growth in neighboring townships led the City of Saginaw to provide water under long-term contracts to such other units of government. This increased the ability of adjacent townships to further develop. The unintended consequence of this was that the city of Saginaw stopped growing in population and new housing development slowed significantly.