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Welcome to Saint Clair County ...
Time Zone: Saint Clair County lies in the Central Time Zone (CST/CDT) and observes daylight saving time.
The community of Belleville is the Seat for Saint Clair County.
Saint Clair County is one of the original counties of Illinois and was founded in 1790.
From the Census Estimates for 2019, <1> Saint Clair had a population of 259,889 people. This is a decrease of 3.76% since the last Census (which gave a population of 270,056 people in 2010).
At the time of the 2010 Census, Saint Clair represented 2.1% of the total population of Illinois.
Below are some of the communities located in Saint Clair County:
- Alorton
(7 miles [11.3 km] to the northwest)
- Note: The GPS coordinates that we are using for Alorton have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Alorton
- Alorton is located in Saint Clair County (IL)
- Population from the 2020 Census: 1,880 people
- Jump to TripAdvisor's Tourism page for Alorton <3>
- Belleville
(Less than 2 miles to the southeast)
- Brooklyn
(12 miles [19.3 km] to the northwest)
- Note: The GPS coordinates that we are using for Brooklyn have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Brooklyn
- Brooklyn is located in Saint Clair County (IL)
- Population from the 2020 Census: 687 people
- Cahokia
(10 miles [16.1 km] to the west)
- Jump to our Gazetteer entry for Cahokia
- Cahokia is located in Saint Clair County (IL)
- Population from the 2020 Census: 13,742 people
- Jump to TripAdvisor's Tourism page for Cahokia <3>
- Caseyville
(7 miles [11.3 km] to the north)
- Centreville
(6 miles [9.7 km] to the west)
- Note: The GPS coordinates that we are using for Centreville have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Centreville
- Centreville is located in Saint Clair County (IL)
- Population from the 2020 Census: 4,844 people
- Dupo
(11 miles [17.7 km] to the west)
- Jump to our Gazetteer entry for Dupo
- Dupo is located in Saint Clair County (IL)
- Population from the 2020 Census: 3,845 people
- Jump to TripAdvisor's Tourism page for Dupo <3>
- East Carondelet
(13 miles [20.9 km] to the west)
- Note: The GPS coordinates that we are using for East Carondelet have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for East Carondelet
- East Carondelet is located in Saint Clair County (IL)
- Population from the 2020 Census: 469 people
- Jump to TripAdvisor's Tourism page for East Carondelet <3>
- Continue List (19 more) ...
- East Saint Louis
(9 miles [14.5 km] to the northwest)
- Fairmont City
(9 miles [14.5 km] to the northwest)
- Note: The GPS coordinates that we are using for Fairmont City have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Fairmont City
- Fairmont City is located in Saint Clair County (IL)
- Population from the 2020 Census: 2,439 people
- Fairview Heights
(4 miles [6.4 km] to the north)
- Note: The GPS coordinates that we are using for Fairview Heights have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Fairview Heights
- Fairview Heights is located in Saint Clair County (IL)
- Population from the 2020 Census: 16,127 people
- Jump to TripAdvisor's Tourism page for Fairview Heights <3>
- Fayetteville
(15 miles [24.1 km] to the southeast)
- Note: The GPS coordinates that we are using for Fayetteville have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Fayetteville
- Fayetteville is located in Saint Clair County (IL)
- Population from the 2020 Census: 336 people
- Freeburg
(8 miles [12.9 km] to the southeast)
- Lebanon
(11 miles [17.7 km] to the northeast)
- Note: The GPS coordinates that we are using for Lebanon have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Lebanon
- Lebanon is located in Saint Clair County (IL)
- Population from the 2020 Census: 4,225 people
- Jump to TripAdvisor's Tourism page for Lebanon <3>
- Lenzburg
(19 miles [30.6 km] to the southeast)
- Marissa
(23 miles [37 km] to the southeast)
- Jump to our Gazetteer entry for Marissa
- Marissa is located in Saint Clair County (IL)
- Population from the 2020 Census: 1,785 people
- Jump to TripAdvisor's Tourism page for Marissa <3>
- Mascoutah
(11 miles [17.7 km] to the east)
- Millstadt
(6 miles [9.7 km] to the southwest)
- Note: The GPS coordinates that we are using for Millstadt have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Millstadt
- Millstadt is located in Saint Clair County (IL)
- Population from the 2020 Census: 3,821 people
- Jump to TripAdvisor's Tourism page for Millstadt <3>
- New Athens
(16 miles [25.7 km] to the southeast)
- Jump to our Gazetteer entry for New Athens
- New Athens is located in Saint Clair County (IL)
- Population from the 2020 Census: 1,865 people
- O'Fallon
(6 miles [9.7 km] to the northeast)
- Saint Libory
(19 miles [30.6 km] to the southeast)
- Sauget
(9 miles [14.5 km] to the northwest)
- Note: The GPS coordinates that we are using for Sauget have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Sauget
- Sauget is located in Saint Clair County (IL)
- Population from the 2020 Census: 154 people
- Jump to TripAdvisor's Tourism page for Sauget <3>
- Shiloh
(4 miles [6.4 km] to the east)
- Note: The GPS coordinates that we are using for Shiloh have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Shiloh
- Shiloh is located in Saint Clair County (IL)
- Population from the 2020 Census: 13,653 people
- Jump to TripAdvisor's Tourism page for Shiloh <3>
- Smithton
(8 miles [12.9 km] to the south)
- Note: The GPS coordinates that we are using for Smithton have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Smithton
- Smithton is located in Saint Clair County (IL)
- Population from the 2020 Census: 3,812 people
- Jump to TripAdvisor's Tourism page for Smithton <3>
- Summerfield
(14 miles [22.5 km] to the east)
- Swansea
(Less than 2 miles to the northeast)
- Note: The GPS coordinates that we are using for Swansea have been provided by the GNIS.<2> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Swansea
- Swansea is located in Saint Clair County (IL)
- Population from the 2020 Census: 13,276 people
- Jump to TripAdvisor's Tourism page for Swansea <3>
- Washington Park
(8 miles [12.9 km] to the northwest)
- Jump to our Gazetteer entry for Washington Park
- Washington Park is located in Saint Clair County (IL)
- Population from the 2020 Census: 3,831 people
Websites of Interest ...
- Websites specific to Illinois
- Websites specific to Saint Clair County
- Websites for nearby counties
- Madison County
- Clinton County
- Washington County
- Randolph County
- Monroe County
- Saint Louis City
- Saint Louis County
- Cemetery Information and Directories
Footnotes ...
| <1> | On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2010 Census and the next count will be for the 2020 Census. |
| <2> | The location has been supplied by the Geographic Names Information System - which is maintained by the U.S. Geological Survey (USGS). While these values should be definitive, we found that accuracy can vary and you should double-check the location if accuracy is required. |
| <3> | While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program. |
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