Elsmere is a town located in the Delaware region of the United States. During the most recent census, Elsmere had a population of 6,131. Elsmere is the 16th most poplulated city in the Delaware region, the 5,543rd most populated city in the United States and the 27,113th most populated city in the world. Elsmere is in the America/New York timezone which is 4 hours behind UTC. Elsmere adjusts the hour with daylight savings time during the winter months.