Jefferson County, Missouri
Jefferson County profile, demographic data, and geographic information.
Local Government & Public Administration
Authoritative general-purpose local government units serving this area
U.S. Census Bureau GUS (2026) / GMAF
| Government Unit | Unit Type | Jurisdiction Role | Contact / Address |
|---|---|---|---|
|
GUS Population: 231,888 (2024)
ID: 107559
|
County | Official County Government |
Contact: COUNTY EXECUTIVE
PO BOX 100, HILLSBORO MO 63050-0100
|
|
GUS Population: 21,036 (2024)
ID: 107647
|
Municipal | Municipal Government Within County |
Contact: FINANCE DIRECTOR
2101 JEFFCO BLVD, ARNOLD MO 63010-2746
|
|
GUS Population: 13,730 (2024)
ID: 190677
|
Municipal | Municipal Government Within County |
Contact: FINANCE DIRECTOR
711 W MAIN ST, FESTUS MO 63028-1700
|
|
GUS Population: 6,503 (2024)
ID: 202059
|
Municipal | Municipal Government Within County |
Contact: CITY MANAGER
17 BOYD ST, DE SOTO MO 63020-1747
|
|
GUS Population: 6,103 (2024)
ID: 107646
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
401 MAIN ST, PEVELY MO 63070-3309
|
|
GUS Population: 5,321 (2024)
ID: 168947
|
Municipal | Municipal Government Within County |
Contact: MAYOR
1 PARKWOOD CT, HERCULANEUM MO 63048-1211
|
|
GUS Population: 4,703 (2024)
ID: 168942
|
Municipal | Municipal Government Within County |
Contact: CITY ADMINISTRATOR
130 MISSISSIPPI AVE, CRYSTAL CITY MO 63019-1697
|
|
GUS Population: 3,489 (2024)
ID: 168943
|
Municipal | Municipal Government Within County |
Contact: CITY ADMINISTRATOR
PO BOX 19, HILLSBORO MO 63050-0019
|
|
GUS Population: 3,189 (2024)
ID: 168944
|
Municipal | Municipal Government Within County |
Contact: CITY ADMINISTRATOR
141 OSAGE EXECUTIVE CIR, BYRNES MILL MO 63051-1383
|
|
CITY OF OLYMPIAN VILLAGE
GUS Population: 712 (2024)
ID: 204825
|
Municipal | Municipal Government Within County |
Contact: MAYOR
205 KRONOS DR, DE SOTO MO 63020-4659
|
|
VILLAGE OF LAKE TEKAKWITHA
GUS Population: 236 (2024)
ID: 223972
|
Municipal | Municipal Government Within County |
Contact: LAKE TEKAKWITHA VILLAGE
729 MAPLE STREET, HILLSBORO MO 63050
|
|
VILLAGE OF CEDAR HILL LAKES
GUS Population: 201 (2024)
ID: 168948
|
Municipal | Municipal Government Within County |
Contact: CHAIRMAN
7344B SPRINGDALE DR, CEDAR HILL MO 63016-3709
|
|
TOWN OF SCOTSDALE
GUS Population: 196 (2024)
ID: 168946
|
Municipal | Municipal Government Within County |
Contact: CHAIRMAN
PO BOX 37, HOUSE SPRINGS MO 63051-0037
|
|
GUS Population: 155 (2024)
ID: 168945
|
Municipal | Municipal Government Within County |
Contact: CHAIRMAN
PO BOX 606, HIGH RIDGE MO 63049-0606
|
|
GUS Population: 131 (2024)
ID: 129521
|
Municipal | Municipal Government Within County |
Contact: TAMARA R BENACK
PO BOX 27, 6041 THIRD ST, KIMMSWICK MO 63053
|
|
VILLAGE OF PEACEFUL
GUS Population: 96 (2024)
ID: 223973
|
Municipal | Municipal Government Within County |
Contact: COMMISSIONER
2820 WILD RIDGE DR, HIGH RIDGE MO 63049-1556
|