Resident Population in Wallace County, KS was 1.50900 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Wallace County, KS reached a record high of 2.30000 in January of 1972 and a record low of 1.39700 in January of 2008. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Wallace County, KS - last updated from the United States Federal Reserve on May of 2024.