Eureka is located in Juab County. About 662 people live here (as of 2020). Between 2010 and 2020, the population declined from 669 to 662. The region is at 1960 meters above sea level. The area covers about 3.8 square kilometers. There are about 68 streets in Eureka. The region was founded in 1870. The postal codes are 84628. The dialing code is 435. The name originates from Eureka (interjection used to celebrate a discovery or invention; a t…) Eureka is city in Juab County, Utah, United States. Among other things, Eureka has restaurants and cafés. More information at
www.eurekautah.org.