Junction City is a village in Portage County, Wisconsin, United States. The population was 439 at the 2010 census.HistoryThe village grew up around the meeting point of two important railroad lines: the East-West route of the former Soo Line Railroad from Stevens Point to Marshfield, and the North-South route of the former Milwaukee Road from Wisconsin Rapids to Wausau. Both rail lines are now part of Canadian National Railway.GeographyJunction City is located at .According to the United States Census Bureau, the village has a total area of 1.57sqmi, of which, 1.56sqmi of it is land and 0.01sqmi is water.Demographics2010 censusAs of the census of 2010, there were 439 people, 169 households, and 115 families residing in the village. The population density was 281.4PD/sqmi. There were 211 housing units at an average density of 135.3/sqmi. The racial makeup of the village was 92.5% White, 0.2% African American, 0.2% Native American, 4.1% Asian, 1.4% from other races, and 1.6% from two or more races. Hispanic or Latino of any race were 3.2% of the population.