Accumulation of anthropogenic debris within inshore and near-shore coastal habitats not only affects wildlife, but the people who work, live, and recreate in these areas. As plastic debris persists within the environment, it is worn into incrementally smaller pieces, eventually becoming microplastics (e.g., particles < 5-mm in diameter). While the accumulation of microplastics within the marine and estuarine environment is an emerging topic of concern, little is known about the dispersal or distribution of these particles, especially in relation to sea level rise, or about the potential impact of these particles to wetland-specialist wildlife, such as the Diamondback Terrapin (Malaclemys terrapin littoralis). Here, we use a transdisciplinary approach to evaluate the distribution and impacts of microplastics within habitats where terrapin are likely to occur. We include small- and landscape-scale geospatial sea-level rise projection models of microplastic distributions in the Matagorda and San Antonio Bay complex. This is overlaid with species distribution models for likelihood of occurrence of terrapin in concurrent areas. Additionally, we describe how our research-driven results are incorporated into local education and outreach programs through a series of “virtual field trips”. Through this work, we aim to fill knowledge gaps in the understanding of how these particles are distributed throughout the estuarine environment and hope to empower local communities to act as stewards for their adjacent habitats and recreational areas.