Real Gross Domestic Product: Water Transportation (NAICS 483) in Iowa was 13.50000 Mil. of Chn. 2009 $ in January of 2022, according to the United States Federal Reserve. Historically, Real Gross Domestic Product: Water Transportation (NAICS 483) in Iowa reached a record high of 32.00000 in January of 2000 and a record low of 10.20000 in January of 2004. Trading Economics provides the current actual value, an historical data chart and related indicators for Real Gross Domestic Product: Water Transportation (NAICS 483) in Iowa - last updated from the United States Federal Reserve on March of 2024.