Poplar Grove is an unincorporated village located in the U.S. state of Arkansas. It is within Phillips County on Arkansas Highway on U.S. Route 49 connecting Marvell and West Helena. It coordinates at 34°32′52.37″N 90° 51′11.41″W. The Barton–Lexa School District provides education in Poplar Grove from early childhood, elementary, and secondary education. Recent job growth is negatively decreased by 0.51 percent. The average travel time is 26 minutes. It has Zip code 72374.