Colfax is a small unincorporated community located in Guilford County, North Carolina, United States. It is located in the western part of the county. The population in 2010 was 4,136. The community is a suburb of Greensboro and High Point and is located in the center of the Piedmont Triad. Its main attraction is the Robert G. Shaw Piedmont Triad Farmers Market, where people shop for fresh food from local farmers.