In Independence, the referendum passed 177-132 but in Chippewa Falls, of the 26-percent of residents, almost 1,300 people voted against adding fluoride.
City Health Officials say despite the public's decision, they still support having the water fluoridating.
Science has proven that having fluoridated water is a good way to promote good oral health in children, says Public Health Director Jean Durch.
The city council is scheduled to vote on the referendum on April 20.
In Wisconsin, 258 cities have fluoridated water, including Eau Claire.