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Zip Code 21543 — Midlothian, MD

21543 is a ZIP Code associated with Midlothian, MD, located within Allegany. The postal region supports an estimated population of 185 residents across Data Pending housing units, with a population density of 29.0 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.641570, -78.962310)

Data Metric	Local Statistic
Postal / Zip Code	21543
Primary City	Midlothian
State / Province	MD
County	Allegany
Total Population	185
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	29.0 people/sq mi
Timezone	America/New_York

How 21543 Compares

Metric	ZIP 21543	Allegany County	MD State Average
Population	185	66,188	6,205,597
Median Income	Data Pending	N/A	N/A
Population Density	29.0 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 21532	Frostburg	1.0 mi	13,647	N/A
Zip 21542	Midland	3.5 mi	84	N/A
Zip 21539	Lonaconing	3.9 mi	1,975	N/A
Zip 21545	Mount Savage	6.5 mi	1,694	N/A
Zip 21521	Barton	7.8 mi	1,400	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 →