Resident Population in McKinley County, NM was 68.79700 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in McKinley County, NM reached a record high of 74.60100 in January of 2000 and a record low of 43.20800 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in McKinley County, NM - last updated from the United States Federal Reserve on May of 2024.