Home > MD > Calvert County > Saint Leonard > Zip 20685

Zip Code 20685 — Saint Leonard, MD

20685 is a ZIP Code associated with Saint Leonard, MD, located within Calvert. The postal region supports an estimated population of 6,866 residents across Data Pending housing units, with a population density of 115.7 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (38.434650, -76.529040)

Data MetricLocal Statistic
Postal / Zip Code20685
Primary CitySaint Leonard
State / ProvinceMD
CountyCalvert
Total Population6,866
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density115.7 people/sq mi
TimezoneAmerica/New_York

How 20685 Compares

MetricZIP 20685Calvert CountyMD State Average
Population6,86692,0156,205,597
Median IncomeData PendingN/AN/A
Population Density115.7 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 20615Broomes Island1.4 mi460N/A
Zip 20676Port Republic3.8 mi3,218N/A
Zip 20657Lusby5.7 mi20,699N/A
Zip 20636Hollywood5.9 mi10,486N/A
Zip 20678Prince Frederick7.2 mi12,752N/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 →