The first Wyoming women voted in 1870, as did the first early Utah women.
Kansas women gained the right to vote in at least local elections in 1887.
Utah women, however, lost their voting rights in 1887 after an anti-Mormon crusade led by Methodist missionary Angelina Newman.
In 1890, when Wyoming applied for statehood, Congress asked it to restrict women’s voting rights, but Wyoming legislators refused; thus, Wyoming women became the only women in the country who could vote in federal elections.
In 1893 women in Colorado won the right to vote. In 1896, when Utah became a state, it restored voting rights to women. Idaho also gave women the right to vote in 1896.
By 1900 women could vote in four states, Wyoming, Colorado, Utah, and Idaho, but not in any of the others.