St. Louis-St. Charles-Farmington, MO-IL Combined Statistical Area Demographics
St. Louis-St. Charles-Farmington, MO-IL Combined Statistical Area is the 21st most populous of 184 combined statistical areas in the United States, with 2,924,904 residents across 8,888 square miles. That is about 329 people per square mile.
At the 2020 census
| Population | 2,924,904 |
|---|---|
| Land area | 8,888 sq mi |
| Density | 329 / sq mi |
Data: 2020 Census · American Community Survey 2024
How St. Louis-St. Charles-Farmington, MO-IL Combined Statistical Area compares to the US
We're computing this combined statistical area's comparison table — check back shortly. Population, land area, and density above are already exact.
Central Location: St. Louis-St. Charles-Farmington, MO-IL Combined Statistical Area
Measured from the combined statistical area's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around St. Louis-St. Charles-Farmington, MO-IL Combined Statistical Area — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Counties in the St. Louis-St. Charles-Farmington, MO-IL Combined Statistical Area area
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| County St. Louis | 1,004,111 | 507.8 | 1,977 |
| St. Charles County | 405,262 | 560.5 | 723 |
| city St. Louis | 301,578 | 61.9 | 4,871 |
| County Madison | 265,859 | 715.6 | 372 |
| St. Clair County, IL | 257,400 | 657.7 | 391 |
| Jefferson County | 226,753 | 656.3 | 346 |
| Franklin County | 104,682 | 922.7 | 113 |
| St. Francois County | 66,922 | 451.9 | 148 |
| County Lincoln | 59,574 | 626.6 | 95 |
| Macoupin County, IL | 44,967 | 863.0 | 52 |
| County Marion | 37,725 | 572.4 | 66 |
| Clinton County, IL | 36,903 | 473.9 | 78 |
| County Warren | 35,532 | 428.6 | 83 |
| Monroe County, IL | 34,962 | 385.3 | 91 |
| Jersey County, IL | 21,512 | 369.6 | 58 |
| Bond County, IL | 16,725 | 380.3 | 44 |
| Calhoun County | 4,437 | 253.8 | 17 |
Related places
Nearest combined statistical areas
- Springfield-Jacksonville-Lincoln, IL Combined Statistical Area
- Carbondale-Marion-Herrin, IL Combined Statistical Area
- Cape Girardeau-Sikeston, MO-IL Combined Statistical Area
- Quincy-Hannibal, IL-MO Combined Statistical Area
- Columbia-Jefferson City-Moberly, MO Combined Statistical Area
- Peoria-Canton, IL Combined Statistical Area
About this page
This page shows demographics for a US combined statistical area from the 2020 census and the American Community Survey: population, land area, density, and how the region compares to national averages.
Combined areas are built from whole counties, listed below. Statistics aggregate the member counties' census tracts.