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Zip Code 01940 — Lynnfield, MA

01940 is a ZIP Code associated with Lynnfield, MA, located within Essex. The postal region supports an estimated population of 13,285 residents across Data Pending housing units, with a population density of 509.0 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (42.535230, -71.036950)

Data Metric	Local Statistic
Postal / Zip Code	01940
Primary City	Lynnfield
State / Province	MA
County	Essex
Total Population	13,285
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	509.0 people/sq mi
Timezone	America/New_York

How 01940 Compares

Metric	ZIP 01940	Essex County	MA State Average
Population	13,285	812,999	7,043,978
Median Income	Data Pending	N/A	N/A
Population Density	509.0 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 01880	Wakefield	2.6 mi	27,793	N/A
Zip 01960	Peabody	3.3 mi	54,474	N/A
Zip 01867	Reading	3.5 mi	25,612	N/A
Zip 01864	North Reading	4.1 mi	15,765	N/A
Zip 01937	Hathorne	4.4 mi	107	N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →