New Castle County
City in Delaware, United States
Overview
New Castle County is the most populous county in Delaware, blending riverfront urban life with scenic suburbs and college town energy. Anchored by Wilmington, the county features a dynamic arts scene, diverse dining, and rich colonial history. Easy access to Philadelphia and proximity to nature reserves make it an attractive destination.
Geographic Context
Jurisdiction
United States
State
Delaware
Population
570,719
Time Zone
America/New_York
Coordinates
39.58°, -75.64°
Key Metrics
Safety Score
65
Female Safety
70
LGBTQ+ Safety
75
Traffic Safety
60
Food Safety
96
Monthly Cost
$2,985
Local Cost
$2,010
Local Income
$3,600
Cashless
95
English
100
Temperature
12.7°C
Summer Avg
24.2°C
Winter Avg
1.1°C
Record High
39.1°C
Record Low
-19.4°C
Humidity
79%
Precipitation
1181 mm
City Vibrancy
—
Coworking
0
Cafes
0
Nightlife
0
Parks
0
Transport
0
Walk Score
0
Footways
—
Airport
ILG
Distance
12 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.
OpenStreetMap - Nearby amenities counted from OpenStreetMap-derived city extracts. Updated 2025-12-06.
OpenStreetMap transport extract - Walkability, footway density, and airport access metrics derived from mapped transport features. Updated 2025-12-05.
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 83/100.