La Salle County, IL - Percent of Population Below the Poverty Level (5-year estimate) in LaSalle County, IL was 13.70% in January of 2022, according to the United States Federal Reserve. Historically, La Salle County, IL - Percent of Population Below the Poverty Level (5-year estimate) in LaSalle County, IL reached a record high of 13.90 in January of 2016 and a record low of 11.20 in January of 2012. Trading Economics provides the current actual value, an historical data chart and related indicators for La Salle County, IL - Percent of Population Below the Poverty Level (5-year estimate) in LaSalle County, IL - last updated from the United States Federal Reserve on May of 2024.