Unlock more jurisdiction sub-pages
Subscribe for full sub-page depth, saves, alerts, and exports.
New Castle
City in New Hampshire, United States
Overview
New Castle is New Hampshire's smallest and only island town, renowned for its scenic coastline, historic attractions, and upscale residential charm. Its quiet neighborhoods, maritime history, and abundance of natural beauty make it a perfect getaway for relaxation and outdoor activities.
Geographic Context
Jurisdiction
United States
State
New Hampshire
Population
4,923
Time Zone
America/New_York
Coordinates
43.07°, -70.72°
Key Metrics
Safety Score · estimate
94
Female Safety
92
LGBTQ+ Safety
85
Traffic Safety
88
Food Safety
95
Monthly Cost · estimate
$3,630
Local Cost
$2,710
Local Income
$4,200
Cashless
90
English
100
Temperature
9.3°C
Summer Avg
19.1°C
Winter Avg
-0.4°C
Record High
30.4°C
Record Low
-19.7°C
Humidity
83%
Precipitation
1333 mm
Internet Speed
360 Mbps
Upload
88 Mbps
Latency
14 ms
City Vibrancy
7
Coworking
0
Cafes
1
Nightlife
1
Parks
5
Transport
16
Walk Score
16
Footways
31.0
Airport
PSM
Distance
9 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 2025-12-07.
OpenStreetMap transport extract - Walkability, footway density, and airport access metrics derived from mapped transport features. Record updated 2025-12-06.
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: 74/100; this is not a measured accuracy score. Model: derived+gpt-4.1. Record updated 2026-03-26.
Subscribe to unlock more jurisdiction sub-pages this month.
You can keep discovering Oyster publicly, but full multi-jurisdiction depth, tracking, alerts, and exports are part of paid access.