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Zip Code 21904 — Port Deposit, MD

21904 is a ZIP Code associated with Port Deposit, MD, located within Cecil. The postal region supports an estimated population of 6,233 residents across Data Pending housing units, with a population density of 102.0 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.623030, -76.078120)

Data Metric	Local Statistic
Postal / Zip Code	21904
Primary City	Port Deposit
State / Province	MD
County	Cecil
Total Population	6,233
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	102.0 people/sq mi
Timezone	America/New_York

How 21904 Compares

Metric	ZIP 21904	Cecil County	MD State Average
Population	6,233	104,960	6,205,597
Median Income	Data Pending	N/A	N/A
Population Density	102.0 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 21917	Colora	3.5 mi	2,233	N/A
Zip 21903	Perryville	3.9 mi	5,692	N/A
Zip 21902	Perry Point	5.0 mi	340	N/A
Zip 21911	Rising Sun	5.0 mi	10,551	N/A
Zip 21078	Havre De Grace	5.3 mi	20,030	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 →