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Zip Code 21651 — Millington, MD

21651 is a ZIP Code associated with Millington, MD, located within Kent. The postal region supports an estimated population of 2,290 residents across Data Pending housing units, with a population density of 21.8 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.258210, -75.858020)

Data Metric	Local Statistic
Postal / Zip Code	21651
Primary City	Millington
State / Province	MD
County	Kent
Total Population	2,290
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	21.8 people/sq mi
Timezone	America/New_York

How 21651 Compares

Metric	ZIP 21651	Kent County	MD State Average
Population	2,290	24,362	6,205,597
Median Income	Data Pending	N/A	N/A
Population Density	21.8 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 21628	Crumpton	3.8 mi	248	N/A
Zip 21650	Massey	4.6 mi	265	N/A
Zip 21668	Sudlersville	4.7 mi	2,011	N/A
Zip 21635	Galena	5.8 mi	2,085	N/A
Zip 21645	Kennedyville	7.0 mi	959	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 →