 elderon is a village in marathon county, wisconsin, united states. it is part of the wausau, wisconsin metropolitan statistical area. the population was 179 at the 2010 census. ==geography== elderon is located at  (44.78325, -89.250492).{{cite web|url=http://www.census.gov/geo/www/gazetteer/gazette.html|publisher=[[
Villages_in_Marathon_County,_Wisconsin Villages_in_Wisconsin