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Jefferson County is part of the St. Louis Metropolitan Statistical Area and encompasses many of the city's southern suburbs. Geography [ edit ] According to the U.S. Census Bureau , the county has a total area of 664 square miles (1,720 km 2 ), of which 657 square miles (1,700 km 2 ) is land and 7.7 square miles (20 km 2 ) (1.2%) is water. [5]
- Jefferson City, Missouri - Wikipedia
Coordinates: 38°34′04″N 92°10′33″W. Jefferson City,...
- Jefferson City metropolitan area - Wikipedia
Area code (s) 573, 660. The Jefferson City metropolitan...
- Jefferson City, Missouri - Wikipedia
Map. ZIP Codes. Features. Schools. Land. Profiles for 85 cities, towns and other populated places in Jefferson County Missouri. Incorporated Cities, Towns & Census Designated Places in Jefferson County. Incorporated Places have an asterisk ( * ). Arnold * Barnhart. Briarwood Estates. Byrnes Mill * Cedar Hill Lakes * Crystal City * De Soto *
Cole County: 051: Jefferson City: 1820: Cooper County: Stephen Cole, pioneering settler 77,278: 392 sq mi (1,015 km 2) Cooper County: 053: Boonville: 1818: Howard County: Sarshel Benjamin Cooper, pioneering settler 16,947: 565 sq mi (1,463 km 2) Crawford County: 055: Steelville: 1829: Gasconade County
CountyFips Code [7]County Seat [8]Est. [8]1841184118431831- 114 counties, 1 independent city
- Arnold. 20,829. 20,861. -0.04% 1,807. 11.53.
- Festus. 13,799. 12,722. 2.25% 2,384. 5.79.
- Murphy. 8,427. 8,373. 2,137. 3.94.
- De Soto. 6,481. 6,450. 0.23% 1,479. 4.38.
Coordinates: 38.502736°N 90.645075°W. Eureka is a city in St. Louis County and Jefferson County, Missouri, adjacent to Wildwood and Pacific. It is in the extreme southwest of the Greater St. Louis metro area. As of the 2020 census, the city had a population of 11,646. [5] .