Resident Population in Morrill County, NE was 4.50400 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Morrill County, NE reached a record high of 6.10000 in January of 1977 and a record low of 4.50400 in January of 2023. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Morrill County, NE - last updated from the United States Federal Reserve on May of 2024.