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Zip Code 21221 — Essex, MD

21221 is a ZIP Code associated with Essex, MD, located within Baltimore. The postal region supports an estimated population of 43,487 residents across Data Pending housing units, with a population density of 1,117.0 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.294620, -76.440340)

Data Metric	Local Statistic
Postal / Zip Code	21221
Primary City	Essex
State / Province	MD
County	Baltimore
Total Population	43,487
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	1,117.0 people/sq mi
Timezone	America/New_York

How 21221 Compares

Metric	ZIP 21221	Baltimore County	MD State Average
Population	43,487	1,414,366	6,205,597
Median Income	Data Pending	N/A	N/A
Population Density	1,117.0 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 21222	Dundalk	3.6 mi	59,407	N/A
Zip 21220	Middle River	4.2 mi	42,824	N/A
Zip 21237	Rosedale	4.2 mi	31,425	N/A
Zip 21219	Sparrows Point	4.4 mi	9,565	N/A
Zip 21224	Baltimore	5.4 mi	47,465	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 →