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Chelmsford
City in Massachusetts, United States
Overview
Chelmsford is a charming small town in Massachusetts, blending New England history with modern suburban amenities. Its scenic neighborhoods, active community, and proximity to Lowell and Boston make it a popular spot for families and commuters.
Geographic Context
Jurisdiction
United States
State
Massachusetts
Population
36,392
Time Zone
America/New_York
Coordinates
42.60°, -71.37°
Key Metrics
Safety Score
87
Female Safety
88
LGBTQ+ Safety
80
Traffic Safety
85
Food Safety
98
Monthly Cost
$3,320
Local Cost
$2,280
Local Income
$4,800
Cashless
95
English
100
Temperature
9.5°C
Summer Avg
21.0°C
Winter Avg
-2.0°C
Record High
38.0°C
Record Low
-25.9°C
Humidity
80%
Precipitation
1206 mm
Internet Speed
209 Mbps
Upload
159 Mbps
Latency
16 ms
City Vibrancy
5
Coworking
0
Cafes
2
Nightlife
0
Parks
3
Transport
0
Walk Score
0
Footways
—
Airport
BED
Distance
16 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.
Ookla Open Data - Internet speed aggregates for 2024Q3 from 9 tests. 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 78/100.
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