Cost of Living in St. Charles County, MO

Modeled annual cost: $52,447.

Median family income: $122,939.

Affordability Snapshot

MO County Median

$43,629

State Rank

2thMost expensive counties in MO out of 115See Missouri county rankings

Median Income

$122,939

Location Type

Metro

Biggest category:

Housing is the biggest expense in St. Charles County, MO.

$13,895 per year.

Cost breakdown

Total

$52,447

Per year

  • Housing:$13,895
  • Transport:$13,152
  • Taxes:$10,253
  • Other Costs:$5,697
  • Healthcare:$4,996
  • Food:$4,454
  • Childcare:$0

* Percentages may not add up to 100% due to rounding.

Cheaper counties in Missouri

1St. Francois County, MO
$40,306
2Washington County, MO
$40,420
3Pemiscot County, MO
$40,690
4Dunklin County, MO
$40,700
5Wright County, MO
$41,275

Popular comparisons in Missouri

See how St. Charles County, MO compares across the country.

Explore our cost of living interactive map to compare St. Charles County, MO with multiple counties in the United States.

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Cost of Living in St. Charles County, MO (2026)