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Zip Code 20838 — Barnesville, MD

20838 is a ZIP Code associated with Barnesville, MD, located within Montgomery. The postal region supports an estimated population of 306 residents across Data Pending housing units, with a population density of 126.3 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.223410, -77.372230)

Data Metric	Local Statistic
Postal / Zip Code	20838
Primary City	Barnesville
State / Province	MD
County	Montgomery
Total Population	306
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	126.3 people/sq mi
Timezone	America/New_York

How 20838 Compares

Metric	ZIP 20838	Montgomery County	MD State Average
Population	306	1,076,754	6,205,597
Median Income	Data Pending	N/A	N/A
Population Density	126.3 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 20842	Dickerson	3.0 mi	2,369	N/A
Zip 20841	Boyds	3.6 mi	9,969	N/A
Zip 20839	Bealsville	3.8 mi	158	N/A
Zip 20871	Clarksburg	5.4 mi	30,182	N/A
Zip 21710	Adamstown	6.5 mi	4,661	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 →