ZIP code 20686: Saint Marys City, MD
20686 is a ZIP code in Saint Marys City, Maryland, mainly in St. Mary's County, part of the Lexington Park, MD metro area. About 971 people live here.
- Population
- 971
- Median household income
- —
- Typical home value
- —
- Median rent
- —gross, per month
- Median age
- 20.3
- Homeowners
- —of occupied homes
Shaded: ZIP code 20686's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 20686 details
| City | Saint Marys City |
|---|---|
| State | Maryland |
| County | St. Mary's County |
| Metro area | Lexington Park, MD |
| Time zone | Eastern Time (UTC−5), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 0.3 sq mi, plus 1.5 sq mi of water |
| Population density | 3,596 people per sq mi |
| Bachelor's degree or higher | 100% of adults 25+ |
| Average commute | 12.1 minutes |
| Center coordinates | 38.18708, -76.43283 |
ZIP codes near 20686
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 20667 | Park Hall, MD | 2.1 mi | 150 |
| 20630 | Drayden, MD | 2.5 mi | 559 |
| 20653 | Lexington Park, MD | 3.5 mi | 26,852 |
| 20692 | Valley Lee, MD | 3.7 mi | 505 |
| 20684 | Saint Inigoes, MD | 4.3 mi | 802 |
| 20634 | Great Mills, MD | 5.2 mi | 7,088 |
| 20628 | Dameron, MD | 5.6 mi | 503 |
| 20620 | Callaway, MD | 5.8 mi | 1,115 |
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
About ZIP code 20686
What city is ZIP code 20686?
ZIP code 20686 is in Saint Marys City, MD, in St. Mary's County.
What county is ZIP code 20686 in?
20686 is mainly in St. Mary's County, Maryland.
What is the population of ZIP code 20686?
About 971 people live in ZIP code 20686, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 20686 in?
20686 is in Eastern Time (UTC−5). It observes daylight saving time.