Resident Population in Grant County, NM was 27.47200 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Grant County, NM reached a record high of 31.56900 in January of 1998 and a record low of 22.03000 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Grant County, NM - last updated from the United States Federal Reserve on May of 2024.