Resident Population in Grand Forks County, ND was 72.70800 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Grand Forks County, ND reached a record high of 73.12600 in January of 2020 and a record low of 61.10200 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Grand Forks County, ND - last updated from the United States Federal Reserve on May of 2024.