Boyd Branch

Koester is an unincorporated community in St. Francois County, in the U.S. state of Missouri.

Dry Fork is a stream in Jefferson, St. Francois and Ste. Genevieve counties in the U.S. state of Missouri. It is a tributary of Plattin Creek.The stream headwaters arise in eastern St. Francois County at 37°59′40″N 90°22′05″W at an elevation of about 1040 feet. The stream flows to the northeast into Ste. Genevieve County just north of the Goose Creek Lake community. The stream flows north through the west portion of Ste. Genevieve County and enters Jefferson County. It enters Plattin Creek just north of the Missouri Route T bridge at 38°05′42″N 90°23′51″W.Dry Fork was named for the fact it often runs dry.

Flucom is an unincorporated community in southern Jefferson County, in the U.S. state of Missouri. The community is located on Plattin Creek approximately eight miles south of Festus. US Route 67 passes about two miles to the west.

Papin is an unincorporated community in Jefferson County, in the U.S. state of Missouri.The community has the name of the local Papin family.

Knorpp is an unincorporated community in Jefferson County, in the U.S. state of Missouri.

Wildwood Lake is a reservoir in Jefferson County, in the U.S. state of Missouri.

Plattin Township is an inactive township in Jefferson County, in the U.S. state of Missouri.Plattin Township takes its name from Plattin Creek.

Plattin is an unincorporated community in southeast Jefferson County, in the U.S. state of Missouri.The community is located on the west side of the Plattin Creek floodplain approximately six miles south of Festus.

Valles Mines is an unincorporated community in southern Jefferson County, Missouri, United States. It is located approximately seven miles south of De Soto. It is located on Missouri Route V less than one mile west of U.S. Route 67. Joachim Creek flows past the north side of the community. The ZIP Code for Valles Mines is 63087.A post office called Valles Mines was established in 1826. The community is named after François Vallé, who established lead mines there in the 18th century.

Olympian Village is a city in Jefferson County, Missouri, United States. The population was 774 at the 2010 census. The city was named in honor of Greek myth and culture. Some street names include Parthenon Drive, Kronos Drive, Hercules Place, Plato Place, and Pheidippides Place.

Halifax is an unincorporated community in St. Francois County, in the U.S. state of Missouri.

Goose Creek Lake is an unincorporated community and census-designated place (CDP) in St. Francois and Ste. Genevieve counties, Missouri, United States. The community is built around a lake of the same name, a reservoir impounding Goose Creek, an east-flowing tributary of Fourche Du Clos and part of the Establishment Creek watershed leading to the Mississippi River. The community is in the northeast part of St. Francois County and extends east into the northwest part of Ste. Genevieve County. It is 3 miles (5 km) east of French Village, 15 miles (24 km) northeast of Bonne Terre, and 22 miles (35 km) west of Ste. Genevieve. The community was first listed as a CDP prior to the 2020 census.