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Zip Code 21105 — Maryland Line, MD

21105 is a ZIP Code associated with Maryland Line, MD, located within Baltimore. The postal region supports an estimated population of 36 residents across Data Pending housing units, with a population density of 161.4 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.715120, -76.652250)

Data Metric	Local Statistic
Postal / Zip Code	21105
Primary City	Maryland Line
State / Province	MD
County	Baltimore
Total Population	36
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	161.4 people/sq mi
Timezone	America/New_York

How 21105 Compares

Metric	ZIP 21105	Baltimore County	MD State Average
Population	36	1,414,366	6,205,597
Median Income	Data Pending	N/A	N/A
Population Density	161.4 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 21053	Freeland	3.7 mi	2,929	N/A
Zip 21120	Parkton	4.9 mi	7,440	N/A
Zip 21161	White Hall	6.0 mi	5,221	N/A
Zip 21111	Monkton	10.4 mi	4,714	N/A
Zip 21102	Manchester	10.5 mi	12,162	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 →