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Zip Code 21131 — Phoenix, MD

21131 is a ZIP Code associated with Phoenix, MD, located within Baltimore. The postal region supports an estimated population of 7,141 residents across Data Pending housing units, with a population density of 131.1 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.503380, -76.574860)

Data Metric	Local Statistic
Postal / Zip Code	21131
Primary City	Phoenix
State / Province	MD
County	Baltimore
Total Population	7,141
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	131.1 people/sq mi
Timezone	America/New_York

How 21131 Compares

Metric	ZIP 21131	Baltimore County	MD State Average
Population	7,141	1,414,366	6,205,597
Median Income	Data Pending	N/A	N/A
Population Density	131.1 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 21013	Baldwin	4.5 mi	5,610	N/A
Zip 21031	Hunt Valley	4.6 mi	26	N/A
Zip 21030	Cockeysville	4.9 mi	25,827	N/A
Zip 21111	Monkton	5.0 mi	4,714	N/A
Zip 21057	Glen Arm	5.1 mi	4,386	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 →