This database is a compilation of surface elevation change and associated environmental data for coastal wetlands across the Conterminous United States used for analyses in the manuscript titled: Ecological transformations of coastal wetlands of the conterminous United States in response to contemporaneous sea-level rise. These data have been synthesized from the following sources and as such, the original sources should be cited over this database. Moorman, M. C., Ladin, Z. S., Tsai, E. L., Smith, A., Bessler, A., Richter, J., Harrison, R., van Druten, B., Stanton, W., Hayes, C., Harris, B. W., Hoff, M., Sasser, C., Wells, D. M., Tupacz, J., & Rankin, N. (2023). Will They Stay or Will They Go — Understanding South Atlantic Coastal Wetland Transformation in Response to Sea-Level Rise. Estuaries and Coasts. https://doi.org/10.1007/s12237-023-01225-7 Moon JA, Feher LC, Lane TC, Vervaeke WC, Osland MJ, HeadDM, Chivoiu BC (2021) Surface elevation change dynamics incoastal marshes along the northwestern Gulf of Mexico: build-ing knowledge to better anticipate effects of rising sea-leveland intensifying hurricanes: U.S. Fish and Wildlife Servicedata release. https:// doi. org/ 10. 7944/ P9CBF O1C Thorne, K. M., Bristow, M. K. L., Rankin, L. L., Kovalenko, K. E., Neville, J. A., Freeman, C. M., & Guntenspergen, G. R. (2024). Understanding Marsh Elevation and Accretion Processes and Vulnerability to Rising Sea Levels Across Climatic and Geomorphic Gradients in California, USA. Estuaries and Coasts. https://doi.org/10.1007/s12237-023-01298-4 Saintilan, N., Kovalenko, K. E., Guntenspergen, G., Rogers, K., Lynch, J. C., Cahoon, D. R., Lovelock, C. E., Friess, D. A., Ashe, E., Krauss, K. W., Cormier, N., Spencer, T., Adams, J., Raw, J., Ibanez, C., Scarton, F., Temmerman, S., Meire, P., Maris, T., … Khan, N. (2022). Constraints on the adjustment of tidal marshes to accelerating sea level rise. Science, 377, 523–527. https://www.science.org