Question: Are both airports, Longville Municipal Airport and Eureka Municipal Airport (South Dakota), located in the same country?
Sentence (from "Eureka Municipal Airport (South Dakota)"): Eureka Municipal Airport is a city-owned, public-use airport located two nautical miles (4 km) north of the central business district of Eureka, a city in McPherson County, South Dakota, United States.
Relevant evidence: Yes