- Ottawa East Side Historic District [ Ottawa City ]
- Autumnwood [ Ottawa City ]
- Autumnwood [ Ottawa City ]
- Briarcrest [ Ottawa City ]
- Canter Court [ Marseilles City ]
- Champlins [ Ottawa City ]
- College Hills [ Ottawa City ]
- Countryside [ Ottawa City ]
- Countryview Estates [ Sheridan Village ]
- Crooked Creek [ Ottawa City ]
- Dayton Ridge Estates [ Ottawa City ]
- Deer Run Estates [ Ottawa City ]
- Deer Timber [ Ottawa City ]
- Drake Landings [ Sheridan Village ]
- Four Lakes [ Marseilles City ]
- Glen Park Estates [ Sheridan Village ]
- Glenwood Farms [ Marseilles City ]
- Glovers [ Ottawa City ]
- Goose Creek Villas [ Ottawa City ]
- Gracefield [ Ottawa City ]
- Greenfield [ Sheridan Village ]
- Heritage Harbor [ Ottawa City ]
- Hidden Acres [ Sheridan Village ]
- Hidden Bluffs [ Ottawa City ]
- Hidden Vallye [ Marseilles City ]
- Highlands [ Ottawa City ]
- Hunters Run [ Ottawa City ]
- Illini Shore [ Marseilles City ]
- Indian Creek [ Leland Village ]
- Johnsons [ Ottawa City ]
- Lakewood Estates [ Sheridan Village ]
- Meadow View Estates [ Marseilles City ]
- O Donnell Woods [ Ottawa City ]
- Oakton Acres [ Ottawa City ]
- Pembrook [ Ottawa City ]
- Prairie Oaks [ Marseilles City ]
- Reynolds Manor [ Ottawa City ]
- Robin Acres [ Sheridan Village ]
- Saddlewood Estates [ Marseilles City ]
- Shadow Ridge [ Ottawa City ]
- Sycamore Lakes [ Peru City ]
- Timber Edge [ Marseilles City ]
- Timber View Estates [ Sheridan Village ]
- Tomahawk Terrace [ Ottawa City ]
- Trails of Terra Cotta [ Ottawa City ]
- Turnberry [ Ottawa City ]
- Whispering Hills [ Marseilles City ]
- Whispering Run [ Marseilles City ]
- Woodridge [ Ottawa City ]