Mean Commuting Time for Workers (5-year estimate) in Grundy County, IA was 22.53215 Minutes in January of 2022, according to the United States Federal Reserve. Historically, Mean Commuting Time for Workers (5-year estimate) in Grundy County, IA reached a record high of 22.53215 in January of 2022 and a record low of 19.03475 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Mean Commuting Time for Workers (5-year estimate) in Grundy County, IA - last updated from the United States Federal Reserve on May of 2024.