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ZIP Code 20628
St. George Island, MD, St. Mary's County
Population
503
Land area
6.5sq mi
People per sq mi
78
City
St. George Island
ZIP 20628 and nearby ZIP codes
ZIP 20628 at a glance
- ZIP 20628 (St. George Island) is 88% less dense than Maryland as a whole.
- A typical owner-occupied home is valued at $545,800 (30% above Maryland).
Local data for ZIP 20628
Counts from official public data
Housing and community stats
ZIP 20628, American Community Survey 2020-2024
Poverty rate
4.6%
Median home value
$545,800
Prices +9.9% in a year
Homeownership
82.9%
Bachelor's or higher
52.5%
Median age
35.9
Average commute
23.7 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
5
ZIP Business Patterns 2023
Employees
37
$1.8M annual payroll
PPP loans
$168K
10 loans
Campaign donations
$17.5K
20% D, 0% R, 2026 cycle
Environment and hazard risk
ZIP 20628, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: hurricane
Storm events since 1996
1,019
Countywide, mostly thunderstorm wind
Flood insurance policies
990
2.4% of homes, county
July high / Jan low
87° / 30°F
46.3 inches of rain a year
Health statistics
Share of adults in ZIP 20628, CDC PLACES estimates
Obesity
38.3%
U.S. 33.3% +5.0 pts
Diabetes
12.8%
U.S. 12.1% +0.7 pts
Smoking
13.4%
U.S. 12.8% +0.6 pts
Uninsured (18-64)
6.6%
U.S. 11.1% -4.5 pts
Frequently asked questions
- What city is ZIP code 20628?
- ZIP code 20628 is in St. George Island, MD (St. Mary's County).
- What county is ZIP code 20628 in?
- ZIP code 20628 is mostly in St. Mary's County, Maryland.
- How many people live in ZIP code 20628?
- About 503 people live in the 20628 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.