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Saint Charles County
City in Missouri, United States
Overview
Saint Charles County, located just west of St. Louis, blends historic charm with modern suburban comforts. Visitors enjoy scenic riverfronts, expansive parks, and a welcoming, family-friendly atmosphere. The county's towns offer unique experiences from artsy riverbank shopping to relaxing lakeside pursuits.
Geographic Context
Jurisdiction
United States
State
Missouri
Population
—
Time Zone
America/Chicago
Coordinates
38.78°, -90.67°
Key Metrics
Safety Score
74
Female Safety
76
LGBTQ+ Safety
62
Traffic Safety
65
Food Safety
95
Monthly Cost
$2,615
Local Cost
$1,540
Local Income
$4,050
Cashless
95
English
100
Temperature
12.6°C
Summer Avg
24.7°C
Winter Avg
-0.5°C
Record High
42.8°C
Record Low
-24.5°C
Humidity
76%
Precipitation
1054 mm
Internet Speed
317 Mbps
Upload
186 Mbps
Latency
10 ms
City Vibrancy
4
Coworking
0
Cafes
1
Nightlife
0
Parks
3
Transport
85
Walk Score
85
Footways
169.0
Airport
SUS
Distance
13 km
Explore
Frequently Asked Questions
Data sources
Source-backed data
NASA POWER - Climate normals and monthly weather measurements rendered as city weather metrics. Updated 2026-03-22.
World Air Quality Index - Latest available city-level air quality station measurement. Updated 2025-12-05.
Ookla Open Data - Internet speed aggregates for 2024Q3 from 211 tests. Updated 2025-12-05.
OpenStreetMap - Nearby amenities counted from OpenStreetMap-derived city extracts. Updated 2025-12-09.
OpenStreetMap transport extract - Walkability, footway density, and airport access metrics derived from mapped transport features. Updated 2025-12-06.
Oyster List city price model - City price estimates calibrated from local price surveys and jurisdiction-level cost signals. Updated 2026-01-14.
Estimated data
Oyster List AI-assisted estimates - Safety, lifestyle, income, and practical scores are model-assisted estimates derived from source-backed country and city signals. Confidence 78/100.
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