Resident Population in Quay County, NM was 8.51000 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Quay County, NM reached a record high of 11.75000 in January of 1985 and a record low of 8.20300 in January of 2018. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Quay County, NM - last updated from the United States Federal Reserve on May of 2024.