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ZIP Code 20678
Prince Frederick, MD, Calvert County
Population
12,752
Land area
44.9sq mi
People per sq mi
284
City
Prince Frederick
ZIP 20678 and nearby ZIP codes
ZIP 20678 at a glance
- ZIP 20678 (Prince Frederick) is 56% less dense than Maryland as a whole.
- Households here earn a median of $125,732 a year, 21% more than the Maryland figure of $103,678.
- A typical owner-occupied home is valued at $455,100 (8% above Maryland) and median rent is $1,388 a month.
Local data for ZIP 20678
Counts from official public data
Housing and community stats
ZIP 20678, American Community Survey 2020-2024
Median household income
$125,732
Poverty rate
7.5%
Median home value
$455,100
Prices +0.8% in a year
Median rent
$1,388/mo
Homeownership
78.4%
Bachelor's or higher
30.3%
Median age
38.4
Average commute
39.9 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
487
ZIP Business Patterns 2023
Employees
7,565
$377M annual payroll
PPP loans
$49.4M
432 loans
Campaign donations
$47.5K
17% D, 33% R, 2026 cycle
Environment and hazard risk
ZIP 20678, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: hurricane
Storm events since 1996
744
Countywide, mostly thunderstorm wind
Flood insurance policies
699
2.0% of homes, county
July high / Jan low
85° / 25°F
48.1 inches of rain a year
Health statistics
Share of adults in ZIP 20678, CDC PLACES estimates
Obesity
38.4%
U.S. 33.3% +5.1 pts
Diabetes
11.9%
U.S. 12.1% about the same
Smoking
12.8%
U.S. 12.8% about the same
Uninsured (18-64)
7.2%
U.S. 11.1% -3.9 pts
Frequently asked questions
- What city is ZIP code 20678?
- ZIP code 20678 is in Prince Frederick, MD (Calvert County).
- What county is ZIP code 20678 in?
- ZIP code 20678 is mostly in Calvert County, Maryland.
- How many people live in ZIP code 20678?
- About 12,752 people live in the 20678 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.