View from the south side of Halfway, Oregon, looking north toward the Wallowa Mountains – Finetooth, CC BY-SA 3.0 – Wikimedia Commons Halfway is located in Baker County. About 351 people live here (as of 2020). Between 2010 and 2020, the population grew from 288 to 351. The region is at 808 meters above sea level. The area covers about 1.0 square kilometers. There are about 31 streets in Halfway. The region was founded in 1909. The postal codes are 97834. The dialing code is 458. Halfway is city in Oregon, USA. Among other things, Halfway has schools and banks.