Saint Marys City, MD ZIP code
The ZIP code for Saint Marys City (also written St. Marys City), Maryland is 20686. It is in St. Mary's County.
- Population in these ZIPs
- 971
- Avg. median income
- —population-weighted
- Typical home value
- —population-weighted
- Metro area
- Lexington Park, MD
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Saint Marys City, MD ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 20686 | 971 | — | — |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Saint Marys City
- Park Hall 2 mi
- Drayden 3 mi
- Lexington Park 3 mi
- Valley Lee 4 mi
- Saint Inigoes 4 mi
- Great Mills 5 mi
- Dameron 6 mi
- Callaway 6 mi
- Tall Timbers 6 mi
- Ridge 6 mi
- Piney Point 6 mi
- Patuxent River 7 mi
Frequently asked questions
What is the ZIP code for Saint Marys City, MD?
The ZIP code for Saint Marys City, MD is 20686.
What county is Saint Marys City, Maryland in?
Saint Marys City ZIP codes are in St. Mary's County.