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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 · estimate
65
Female Safety
70
LGBTQ+ Safety
75
Traffic Safety
60
Food Safety
96
Monthly Cost · estimate
$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
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: 83/100; this is not a measured accuracy score. Model: derived+gpt-4.1. Record updated 2026-03-26.
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