Resident Population in Roosevelt County, NM was 18.78700 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Roosevelt County, NM reached a record high of 20.42900 in January of 2011 and a record low of 15.58400 in January of 1981. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Roosevelt County, NM - last updated from the United States Federal Reserve on May of 2024.