The city's geography is dominated by Lake Jackson, but Dinner Lake and Little Lake Jackson are also within the city limits. Highlands County has more than 84 lakes, most of which are located in unincorporated areas of the county. Sebring lies near the southern end of the Lake Wales Ridge, a chain of ancient islands that is the native habitat for many rare plants and animals. Most of the area is rural and part of the Florida scrub ecosystem, with smaller areas of hammocks and cypress swamps, similar to those found at Highlands Hammock State Park, west of Sebring.