A quantitative assessment of water users can help communicate the importance of water resource protection and improvement as well as provide data for prioritizing projects. As part of the Springfield–Greene County effort, EPA investigated data on water resource users within and downstream of the city and county. After compiling existing data, the EPA project team identified data gaps and developed recommended methods for collecting additional data to address these gaps. This data collection plan provides next steps for the project partners as well as ideas for other communities on how to collect water resource user data to help support an integrated planning process.