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Ramsey County | Multi-Jurisdiction Hazard Mitigation Plan 15 • Wetlands: The county has numerous wetlands that contribute to its diverse ecology, including areas near Battle Creek Regional Park and Rice Creek. Wetland areas are critical for stormwater management, wildlife habitats, and maintaining biodiversity in this urban landscape. • Watershed Districts: There are five watershed districts and three water management organizations within the county. The five districts are Capitol Region Watershed District, Lower Minnesota River Watershed District, Ramsey-Washington Metro Watershed District, Rice Creek Watershed District, and Valley Branch Watershed District. The water management organizations are Lower Mississippi River Water Management Organization, Mississippi Water Management Organization, and Vadnais Lake Area Water Management Organization. 2.2.3 GEOLOGY Ramsey County has a diverse geological history shaped by both glacial and ancient marine processes. The landscape was heavily influenced by the Wisconsin Glaciation, which left behind glacial deposits, moraines, and outwash plains, forming the county's rolling terrain and contributing to the development of the Mississippi River. Beneath the glacial sediments, the bedrock consists primarily of sedimentary rocks like limestone, dolostone, and sandstone, deposited when the area was covered by shallow seas around 500 million years ago. The Mississippi River has carved valleys into these rock layers, exposing bluffs, while fertile soils from glacial deposits historically supported agriculture. Additionally, karst features are present in some areas due to the soluble limestone bedrock, although these are less common than in southeastern Minnesota. 2.3 Population and Demographics Demographic Overview Ramsey County is home to a diverse population that reflects a rich tapestry of racial, ethnic, and cultural groups. Understanding the demographic makeup of the county is critical to ensuring that hazard mitigation efforts are equitable and address the needs of all community members. Population Composition As of the most recent U.S. Census, Ramsey County has a population of 552,352 residents. Figure 1 shows Ramsey population density by U.S. Census block.