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Zip Code 20650 — Leonardtown, MD

20650 is a ZIP Code associated with Leonardtown, MD, located within St. Mary's. The postal region supports an estimated population of 16,094 residents across Data Pending housing units, with a population density of 101.2 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (38.271860, -76.632760)

Data Metric	Local Statistic
Postal / Zip Code	20650
Primary City	Leonardtown
State / Province	MD
County	St. Mary's
Total Population	16,094
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	101.2 people/sq mi
Timezone	America/New_York

How 20650 Compares

Metric	ZIP 20650	St. Mary's County	MD State Average
Population	16,094	113,480	6,205,597
Median Income	Data Pending	N/A	N/A
Population Density	101.2 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 20656	Loveville	5.3 mi	87	N/A
Zip 20606	Abell	5.9 mi	291	N/A
Zip 20619	California	5.9 mi	14,212	N/A
Zip 20609	Avenue	6.2 mi	714	N/A
Zip 20620	Callaway	6.6 mi	1,115	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 →