In which town and state was America's first female mayor elected in 1887?

America's first female mayor was elected in 1887 in Argonia, Kansas. This historical event is significant as it marked a pivotal moment in the women's suffrage movement and the progression of women's roles in politics. The election of Susanna M. Salter as mayor symbolizes the breaking of barriers and challenges of patriarchal norms at the time.

Argonia was a small town that witnessed this remarkable achievement, showcasing how local governance could be influenced by progressive changes in societal attitudes regarding gender and leadership. The election of Salter was a crucial step in increasing women's visibility and participation in public office, which would later contribute to broader changes in voting rights and gender equality across the United States.

The other locations mentioned, while they have their own historical significance, are not recognized for electing the first female mayor in U.S. history.