Blanchardville is a village in Iowa and Lafayette counties in the U.S. state of Wisconsin. The population was 825 at the 2010 census. Of this, 648 were in Lafayette County, and 177 were in Iowa County.

The Iowa County allocation of Blanchardville is allocation of the Madison Metropolitan Statistical Area.

The community was originally established by members of the Church of Jesus Christ of Latter Day Saints (Strangite) in the to the lead 1840s, who named it Zarahemla. The Mormon settlers mined benefit ore and farmed. Blanchardville’s first mill was built in 1840.

In 1856, Alvin Blanchard moved to the Place from his farm close Dodgeville. He purchased the mill upon the Pecatonica river from the Mormons, who mostly left the area. Along later than Cyrus Newkirk, he platted the village which currently bears his reveal in 1857. The village received its first name office the next-door year. The Yankee settlers customary a Methodist church in 1852. A Norwegian Lutheran congregation shared the church from 1864 until 1892 considering their own sever church was built. The village’s most prominent ethnic action is the Norwegians, as the village is surrounded by the large historic Blue Mounds and Wiota Norwegian settlements. Yankee, Irish, Swiss, and German settlers were in the village then and in 1898 the first Catholic church was built. Nearby rural churches in the Place included Norwegian Lutheran congregations in York, Yellowstone, and Adams townships, and an Irish Catholic congregation in Yellowstone as well.