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Jefferson County, Missouri

Jefferson County is located in Missouri. About 224,124 people live here. Between 2010 and 2020, the population grew from 218,733 to 226,739. The area covers about 1,720.0 square kilometers. The region is divided into 4 Municipalities and 12 Subregions. The region was founded in 1818. The name originates from Thomas Jefferson (Founding Father) Jefferson County is county in Missouri, United States. More information at www.jeffcomo.org.
Named after Thomas Jefferson
Year built 1818
Area 1720 km²
Located in Missouri
Country United States
Population 226739
Native name Jefferson County
Public transit map Public transit map Jefferson County Legend
Railway
Bus
Tram
Bicycle map Bicycle map Jefferson County Legend
Bike path
Bike lane on roadway
Cycling allowed on bus lane
Bicycle street
Open to cyclists
Open to cyclists, good path
Cycling prohibited
Cobblestone
Long-distance bike route (depending on scale)
Long-distance bike route
Pedestrian map Pedestrian map Jefferson County Legend
Path
Long-distance hiking trail (depending on scale)
Long-distance hiking trail
Pedestrians prohibited
Jefferson County
Crystal City
Herculaneum
De Soto
Cedar Hill Lakes
Imperial Township
Arnold Township
Arnold
Windsor Township
Kimmswick
Joachim Township
Pevely
River View Township
Festus
Plattin Township
Olympian Village
Central Township
Hillsboro
Rock Township
High Ridge Township
Parkdale
Scotsdale
Byrnes Mill
Meramec Township
Eureka
Valle Township
Big River Township