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Zip Code 20871 — Clarksburg, MD

20871 is a ZIP Code associated with Clarksburg, MD, located within Montgomery. The postal region supports an estimated population of 30,182 residents across Data Pending housing units, with a population density of 509.2 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.259200, -77.281870)

Data Metric	Local Statistic
Postal / Zip Code	20871
Primary City	Clarksburg
State / Province	MD
County	Montgomery
Total Population	30,182
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	509.2 people/sq mi
Timezone	America/New_York

How 20871 Compares

Metric	ZIP 20871	Montgomery County	MD State Average
Population	30,182	1,076,754	6,205,597
Median Income	Data Pending	N/A	N/A
Population Density	509.2 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 20872	Damascus	4.2 mi	13,983	N/A
Zip 20876	Germantown	4.5 mi	26,406	N/A
Zip 20838	Barnesville	5.4 mi	306	N/A
Zip 20841	Boyds	5.6 mi	9,969	N/A
Zip 21754	Ijamsville	5.6 mi	8,156	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 →