Resident Population in Lafayette-West Lafayette, IN (MSA) was 229.70100 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Lafayette-West Lafayette, IN (MSA) reached a record high of 232.11700 in January of 2019 and a record low of 210.68900 in January of 2010. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Lafayette-West Lafayette, IN (MSA) - last updated from the United States Federal Reserve on April of 2026.