Jefferson County, county in Illinois, United States. As of 2020 county had an estimated population of 37,235 inhabitants. The county was created 205 years ago in 1819. Its county seat is Mount Vernon.
There are 13 city/town in Jefferson County, IL. The largest city of Jefferson County is Shields with a population of 36,451. Other cities include, Mount Vernon population 14,511, Spring Garden population 3,208, Ina population 2,279, Woodlawn population 670
List of cities, towns, neighborhoods & other populated places in Jefferson County.
City Name | Title | Population |
---|---|---|
Belle Rive | Village Jefferson County, Illinois, United States | 347 |
Bluford | Village in the United States | 660 |
Bonnie | Village in Illinois | 380 |
Dix | City in Illinois, United States of America | 428 |
Harmony | Unincorporated community in Illinois | 263 |
Ina | Village in Jefferson County, United States | 2,279 |
Mount Vernon | City located near the center of Jefferson County, Illinois, United States | 14,511 |
Nason | City in Jefferson County, Illinois | 228 |
Shields | Township in Lake County, Illinois | 36,451 |
Spring Garden | Township in Jefferson County, Illinois | 3,208 |
Stratton | Township in Edgar County, Illinois | 432 |
Waltonville | Human settlement in Illinois, United States of America | 422 |
Woodlawn | Community in the city of Birmingham, Jefferson County, Alabama, United States | 670 |