Randolph, Nebraska: north side of Broadway Street, looking west from about Nebraska Street. – Ammodramus, Public domain – Wikimedia Commons Randolph is located in Cedar County. About 879 people live here (as of 2020). Between 2010 and 2020, the population declined from 944 to 879. The region is at 505 meters above sea level. The area covers about 2.4 square kilometers. There are about 76 streets in Randolph. The region was founded in 1889. The postal codes are 68771. The dialing code is 402. Randolph is city in Nebraska, USA. Among other things, Randolph has schools, banks and doctors. More information at www.ci.randolph.ne.us.