Resident Population in Palo Alto County, IA was 8.81000 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Palo Alto County, IA reached a record high of 13.70000 in January of 1972 and a record low of 8.76400 in January of 2022. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Palo Alto County, IA - last updated from the United States Federal Reserve on May of 2024.