Bethesda is a city located in the Maryland region of the United States. During the most recent census, Bethesda had a population of 60,858. Bethesda is the 11th most poplulated city in the Maryland region, the 619th most populated city in the United States and the 5,833rd most populated city in the world. Bethesda is in the America/New York timezone which is 4 hours behind UTC. Bethesda adjusts the hour with daylight savings time during the winter months.