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Welcome to Saint Charles County ...

Time Zone: Saint Charles County lies in the Central Time Zone (CST/CDT) and observes daylight saving time.

The community of Saint Charles is the Seat for Saint Charles County.

Saint Charles County is one of the original counties of Missouri and was founded in 1812.

From the Census Estimates for 2019, <1> Saint Charles had a population of 402,022 people. This is an increase of 11.12% since the last Census (which gave a population of 361,803 people in 2010).

At the time of the 2010 Census, Saint Charles represented 6.04% of the total population of Missouri.

Below are some of the communities located in Saint Charles County:

  • Augusta
    (19 miles [30.6 km] to the southwest)
    • Augusta is located in Saint Charles County (MO)
    • Jump to our Gazetteer entry for Augusta
    • Population from the 2020 Census: 267 people
    • Jump to TripAdvisor's Tourism page for Augusta <2>
  • Cottleville
    (2 miles [3.2 km] to the south)
    • Cottleville is located in Saint Charles County (MO)
    • Jump to our Gazetteer entry for Cottleville
    • Population from the 2020 Census: 5,925 people
    • Jump to TripAdvisor's Tourism page for Cottleville <2>
  • Dardenne Prairie
    (4 miles [6.4 km] to the southwest)
  • Flint Hill
    (12 miles [19.3 km] to the northwest)
    • Flint Hill is located in Saint Charles County (MO)
    • Jump to our Gazetteer entry for Flint Hill
    • Population from the 2020 Census: 794 people
  • Foristell
    (16 miles [25.7 km] to the west)
    • Foristell is located in Saint Charles County (MO)
    • Jump to our Gazetteer entry for Foristell
    • Population from the 2020 Census: 618 people
    • Jump to TripAdvisor's Tourism page for Foristell <2>
  • Josephville
    (8 miles [12.9 km] to the west)
    • Josephville is located in Saint Charles County (MO)
    • Jump to our Gazetteer entry for Josephville
    • Population from the 2020 Census: 485 people
  • Lake Saint Louis
    (7 miles [11.3 km] to the west)
  • New Melle
    (13 miles [20.9 km] to the west)
    • New Melle is located in Saint Charles County (MO)
    • Jump to our Gazetteer entry for New Melle
    • Population from the 2020 Census: 506 people
    • Jump to TripAdvisor's Tourism page for New Melle <2>
  • Continue List   (9 more) ...
    • O'Fallon
      (3 miles [4.8 km] to the northwest)
      • O'Fallon is located in Saint Charles County (MO)
      • Jump to our Gazetteer entry for O'Fallon
      • Population from the 2020 Census: 89,769 people
      • Jump to TripAdvisor's Tourism page for O'Fallon <2>
    • Portage Des Sioux
      (19 miles [30.6 km] to the northeast)
    • Saint Charles
      (6 miles [9.7 km] to the east)
    • Saint Paul
      (6 miles [9.7 km] to the northwest)
      • Saint Paul is located in Saint Charles County (MO)
      • Jump to our Gazetteer entry for Saint Paul
      • Population from the 2020 Census: 2,796 people
    • Saint Peters
      (Less than 2 miles to the east)
    • Weldon Spring
      (5 miles [8 km] to the south)
    • Weldon Spring Heights
      (5 miles [8 km] to the south)
      • Weldon Spring Heights is located in Saint Charles County (MO)
      • Jump to our Gazetteer entry for Weldon Spring Heights
      • Population from the 2020 Census: 90 people
    • Wentzville
      (11 miles [17.7 km] to the west)
      • Wentzville is located in Saint Charles County (MO)
      • Jump to our Gazetteer entry for Wentzville
      • Population from the 2020 Census: 43,109 people
      • Jump to TripAdvisor's Tourism page for Wentzville <2>
    • West Alton
      (24 miles [38.6 km] to the east)
      • West Alton is located in Saint Charles County (MO)
      • Jump to our Gazetteer entry for West Alton
      • Population from the 2020 Census: 529 people
      • Jump to TripAdvisor's Tourism page for West Alton <2>

Websites of Interest ...

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>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.