Versions of Iowa Code 335.4 - Areas and districts on LawServer 2023 Iowa Code 335.4 – Areas and districts 2022 Iowa Code 335.4 – Areas and districts 2020 Iowa Code 335.4 – Areas and districts 2018 Iowa Code 335.4 – Areas and districts 2016 Iowa Code 335.4 – Areas and districts 2014 Iowa Code 335.4 – Areas and districts. 2009 Iowa Code 335.4 – Areas and districts