Ranking of St. Charles County, MO Cities and Places By Population in 2020

Updated on August 17, 2024.

Based on the US Census Vintage data estimates, in 2020, among all St. Charles County, MO cities and places, Balance of St. Charles County had the highest population (94.50K), followed by O'Fallon city (91.62K), and St. Charles city (70.78K).

The chart below shows the top 10 cities and places, and the table below shows the ranking of all St. Charles cities and places.

You can see similar information for other Missouri counties. You can also see the ranking of all cities and places in Missouri.

See this for other years:
Ranking of St. Charles County, MO Cities and Places By Population in 2020
Balance of St. Charles County
O'Fallon city
St. Charles city
St. Peters city
Wentzville city
Lake St. Louis city
Dardenne Prairie city
Cottleville city
Weldon Spring city
St. Paul city
Ranking of St. Charles County, MO Cities and Places By Population in 2020
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Rank City or Place Population
1 Balance of St. Charles County 94498
2 O'Fallon city 91621
3 St. Charles city 70780
4 St. Peters city 57708
5 Wentzville city 44962
6 Lake St. Louis city 16787
7 Dardenne Prairie city 12774
8 Cottleville city 5696
9 Weldon Spring city 5332
10 St. Paul city 3060
11 Flint Hill city 810
12 New Melle city 544
13 Josephville village 516
14 West Alton city 356
15 Portage Des Sioux city 333
16 Foristell city (pt.) 277
17 Augusta town 269
18 Weldon Spring Heights town 94