Fayette County
City in Illinois, United States
Overview
Fayette County, Illinois blends rural tranquility with rich historical roots, centered around its largest city, Vandalia. The county is known for its friendly communities, historic landmarks, and easy access to outdoor recreation within the heart of southern Illinois.
Geographic Context
Jurisdiction
United States
State
Illinois
Population
128,804
Time Zone
America/Chicago
Coordinates
39.00°, -89.02°
Key Metrics
Safety Score · estimate
70
Female Safety
60
LGBTQ+ Safety
40
Traffic Safety
75
Food Safety
85
Monthly Cost · estimate
$1,782
Local Cost
$1,052
Local Income
$2,400
Cashless
70
English
100
Temperature
12.3°C
Summer Avg
24.0°C
Winter Avg
-0.4°C
Record High
42.8°C
Record Low
-25.2°C
Humidity
77%
Precipitation
1118 mm
City Vibrancy
—
Coworking
0
Cafes
0
Nightlife
0
Parks
0
Transport
0
Walk Score
0
Footways
—
Airport
VLA
Distance
12 km
Explore
Data sources
Source-backed data
World Air Quality Index - Latest available city-level air quality station measurement. Record updated 2025-12-05.
OpenStreetMap - Nearby amenities counted from OpenStreetMap-derived city extracts. Record updated 2025-12-06.
OpenStreetMap transport extract - Walkability, footway density, and airport access metrics derived from mapped transport features. Record updated 2025-12-05.
Estimates and unverified origins
Oyster List climate data - Climate origins are unverified. Available methods include historical APIs and AI estimates; stored rows do not identify the original dataset, reference period, or model for each value. Treat these summaries as estimates until independently verified. Record updated 2026-03-22.
Oyster List city price estimates - Price origins are unverified. Available generation methods include AI estimates; stored records do not identify a survey, observation period, or model for each price. Record updated 2026-01-14.
Oyster List AI-assisted estimates - Safety, lifestyle, income, and practical scores include model-assisted estimates. Stored records do not identify supporting observations for each score. Model-reported confidence: 65/100; this is not a measured accuracy score. Model: derived+gpt-4.1. Record updated 2026-03-26.