Resident Population in Richardson County, NE was 7.66600 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Richardson County, NE reached a record high of 12.40000 in January of 1971 and a record low of 7.66600 in January of 2024. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Richardson County, NE - last updated from the United States Federal Reserve on April of 2026.