US ZIP Code
20686

Saint Marys City, MD

St. Mary's County  ·  Maryland

● Active
👥 949 Population ↓ 47% since 2019
🎂 20.0 Median Age ↓ 2% since 2019
🎓 100.0% College Grads
▲ 158% above avg
📊 5.9% Unemployment
▲ 20% above avg ↑ 279% since 2019
ZIP Code Details
ZIP Code20686
CitySaint Marys City
StateMaryland (MD)
CountySt. Mary's County
Area Code227/240/301
Elevation33 ft
Latitude38.187079
Longitude-76.432826
TimezoneNew York (DST)
FIPS24037
ZIP TypePO Box
StatusActive
People & Population (ACS 2023)
♂ Male 39.7% (377) Female 60.3% (572) ♀

Race & Ethnicity

White: 77.9%Hispanic: 5.4%Black: 6.6%Asian: 5.2%Other: 5%Race
White77.9%
Hispanic5.4%
Black6.6%
Asian5.2%
Other5.0%

Age Breakdown

5–17
1%
18–24
98%
25–44
0%
45–64
0%

Key Indicators

Median Age20.0 yrs ↓ 2% since 2019
Avg Household Size-99.99
Below Poverty0.0% ▼ 100% below avg
College Grads100.0% ▲ 158% above avg
Unemployment5.9% ▲ 20% above avg
Graduate Degree3 (100%)

Education

Graduate: 100%Edu
Graduate100.0%
Housing & Income

Financials

Avg HH Size-99.99
Employment & Commute

How People Get to Work

Drove Alone
23%
Walked
65%
Work From Home
12%

Commute Time

Under 15 min
77%
15–30 min
12%
30–45 min
6%
Over 45 min
4%
Frequently Asked Questions
ZIP code 20686 is in Saint Marys City, MD, in St. Mary's County.
ZIP code 20686 is located in Maryland (MD).
ZIP code 20686 is in St. Mary's County, MD.
ZIP 20686 observes the New York timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 20686 is 949 people (ACS 2023).
Income data not available.
Home value data not available.
About ZIP Code 20686

ZIP code 20686 is located in Saint Marys City, Maryland, within St. Mary's County. With a population of 949, this is a sparsely populated ZIP code with a young community — the median age is 20 years.

The population of 20686 is primarily White (77.87%). Residents are highly educated — 100.0% hold a bachelor's degree or higher, which is more than double the national average.

The unemployment rate in 20686 stands at 5.9%, which is above the national average. About 11% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 21%.

Overall, ZIP code 20686 in Saint Marys City, MD is characterized as highly educated, and a young community.