High Ridge Township, Jefferson County, Missouri

Meramec Heights is a locally designated name located on the intersection of Highway 21 and East/West Rock Creek. Meramec Heights does not have its own post office. All residents residing on the east side of 21 have an Arnold, Missouri address, and all residents residing on the west side of 21 have an Imperial, Missouri address.

Byrnes Mill is a city in northern Jefferson County, Missouri, United States. The population was 3,173 at the 2020 census.

The Valentine Leight General Store, also known as V. Leight New Store, Leight Mercantile Co., and Garden of Eva, is a historic general store located at House Springs, Jefferson County, Missouri. It was built in three stages between about 1894 and 1910, and is a one- to two-story, frame building with Late Victorian style detailing. It is sheathed in weatherboard and measures 88 feet wide by 40 feet deep.: 5 It was listed on the National Register of Historic Places in 1992.

Bear Creek is a stream in Jefferson County in the U.S. state of Missouri. It is a tributary of Heads Creek. Bear Creek was named for bears along its course.

House Springs is an unincorporated community in Jefferson County, Missouri, United States. It is located just off Route 30, at the intersection with Routes MM and W near Byrnes Mill. A post office has been in operation at House Springs since 1833. The community is named after Adam House, who settled there ca. 1795, and who was killed near a spring by Native Americans.The Valentine Leight General Store and Moder Archeological District are listed on the National Register of Historic Places.

Dowling Creek (also called Dulin Creek) is a stream in Jefferson County in the U.S. state of Missouri. It is a tributary to Heads Creek.The stream headwaters arise at 38°21′12″N 90°35′19″W at an elevation of approximately 750 feet. The confluence with Heads Creek is at 38°25′00″N 90°35′03″W at an elevation of 443 feet. The stream passes under Missouri Route 30 about one mile before it enters Heads Creek. Dowling Creek derives its name from a local family.

Heads Creek is a stream in Jefferson County in the U.S. state of Missouri. Heads Creek is a tributary of Big River.The stream headwaters arise just north of Missouri Route 21 and it flows north passing west of Otto. It turns northeast and flows parallel to Missouri Route MM passing southwest of House Springs. The stream passes under Missouri Route 30 to its confluence with Big River across the river from Rockford Beach and about one mile southwest of Byrnes Mill. The source area is at 38°19′59″N 90°32′03″W and the confluence is at 38°25′20″N 90°35′19″W.Heads Creek has the name of James Head, a pioneer citizen.

Peaceful Village (also known as Peaceful) is a village in Jefferson County, Missouri, United States. As of the 2010 census, Peaceful Village had a population of nine.

High Ridge is an unincorporated community and census-designated place (CDP) in Jefferson County, Missouri, United States. The population was 4,305 at the 2010 census. At 927 feet (283 m) above sea level, High Ridge is the second-highest point in Jefferson County, second only to Sun Ridge, north of Hillsboro, according to data from the House Springs/Hillsboro 7.5 minute topographic quadrangles. The Beaumont Scout Reservation, a property of the Greater St. Louis Area Council, Boy Scouts of America, is 4 miles (6 km) north of High Ridge.

Parkdale is a village in northern Jefferson County, Missouri, United States. The population was 170 at the 2010 census.

Scotsdale is a village in Jefferson County, Missouri, United States. The population was 222 at the 2010 census.