Resident Population in Waterloo-Cedar Falls, IA (MSA) was 169.18900 Thous. of Persons in January of 2025, according to the United States Federal Reserve. Historically, Resident Population in Waterloo-Cedar Falls, IA (MSA) reached a record high of 170.92100 in January of 2015 and a record low of 161.54000 in January of 2003. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Waterloo-Cedar Falls, IA (MSA) - last updated from the United States Federal Reserve on May of 2026.