Jefferson County
City in Illinois, United States
Overview
Jefferson County is a city in United States.
Geographic Context
Jurisdiction
United States
State
Illinois
Population
32,977
Time Zone
America/Chicago
Coordinates
38.30°, -88.92°
Key Metrics
Safety Score
60
Female Safety
65
LGBTQ+ Safety
45
Traffic Safety
75
Food Safety
90
Monthly Cost
$2,073
Local Cost
$1,132
Local Income
$2,600
Cashless
85
English
99
Temperature
12.9°C
Summer Avg
24.5°C
Winter Avg
0.4°C
Record High
42.6°C
Record Low
-22.9°C
Humidity
77%
Precipitation
1123 mm
Internet Speed
37 Mbps
Upload
166 Mbps
Latency
12 ms
City Vibrancy
—
Coworking
0
Cafes
0
Nightlife
0
Parks
0
Transport
0
Walk Score
0
Footways
—
Airport
MVN
Distance
6 km
Explore
Frequently Asked Questions
Sources: Ookla | Teleport | OpenStreetMap · Last updated: 2025