What counties surround St Louis County?
Sophia Terry
Updated on May 04, 2026
Counties and municipalities in Greater St. Louis.
| State | County | Population |
|---|---|---|
| Illinois | St. Clair | 261,059 |
| Missouri | Franklin | 103,670 |
| Missouri | Jefferson | 224,347 |
| Missouri | Lincoln | 57,686 |
Herein, how many counties are in St Louis County?
Louis metropolitan area, which comprises 14 counties and the city of St.
Additionally, how many cities make up St Louis County? St. Louis County has 88 municipalities, labeled above.
Beside this, what is considered St Louis County?
Louis County is located in the eastern-central portion of Missouri. It is bounded by the City of St. Louis and the Mississippi River to the east, the Missouri River to the north, and the Meramec River to the south.
What is the most populated county in Missouri?
St. Louis County continues to have the largest Missouri population with 996,945 followed by Jackson County (700,307), St. Charles County (399,182), St.
Related Question Answers
Does Missouri have counties?
Resources for Family & Community HistoryThe map below indicates current boundary lines for Missouri's 114 counties.