Halfway is a city in Baker County, Oregon, United States. The city took its name from the location of its post office, on the Alexander Stalker ranch, halfway between Pine and Jim Town. The population w…Halfway is a city in Baker County, Oregon, United States. The city took its name from the location of its post office, on the Alexander Stalker ranch, halfway between Pine and Jim Town. The population was 288 at the 2010 census.