Fort Lupton, CO
The City of Fort Lupton is a Statutory City located in Weld County, Colorado, United States. The population was 6,787 as of the 2000 census.
The city was named for Lieutenant Lancaster Lupton, who built a trading post here.
Fort Lupton is located at 40°5′6″N 104°48′11″W / 40.085°N 104.80306°W / 40.085; -104.80306 (40.084918, -104.802996).