what county is poplar mt
Poplar, MT Profile: Facts, Map & Data. Poplar, Montana - Basic Facts. The City of Poplar had a population of 870 as of July 1, 2016. Poplar ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Montana. See peer rankings below. The primary coordinate point for Poplar is located at latitude 48.1105 and longitude -105.1967 in Roosevelt County.