ZIP code 20678: Prince Frederick, MD
20678 is a ZIP code in Prince Frederick, Maryland, mainly in Calvert County, part of the Lexington Park, MD metro area. About 12,752 people live here.
- Population
- 12,752
- Median household income
- $125,732
- Typical home value
- $473,800+1.4% in 12 months
- Median rent
- $1,388gross, per month
- Median age
- 38.4
- Homeowners
- 78.4%of occupied homes
Shaded: ZIP code 20678's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 20678 details
| City | Prince Frederick |
|---|---|
| State | Maryland |
| County | Calvert County |
| Metro area | Lexington Park, MD |
| Time zone | Eastern Time (UTC−5), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 44.9 sq mi, plus 9.1 sq mi of water |
| Population density | 284 people per sq mi |
| Bachelor's degree or higher | 30.3% of adults 25+ |
| Average commute | 39.9 minutes |
| Center coordinates | 38.52511, -76.59540 |
Median rent in 20678 by bedrooms
| Size | Median gross rent |
|---|---|
| 1 bedroom | $1,046/mo |
| 2 bedrooms | $1,316/mo |
| 3 bedrooms | $1,778/mo |
| 4 bedrooms | $2,646/mo |
Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.
ZIP codes near 20678
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 20610 | Barstow, MD | 1.1 mi | — |
| 20676 | Port Republic, MD | 3.8 mi | 3,218 |
| 20612 | Benedict, MD | 4.7 mi | 148 |
| 20639 | Huntingtown, MD | 5.3 mi | 15,544 |
| 20608 | Aquasco, MD | 6.9 mi | 693 |
| 20685 | Saint Leonard, MD | 7.2 mi | 6,866 |
| 20615 | Broomes Island, MD | 8.2 mi | 460 |
| 20637 | Hughesville, MD | 8.7 mi | 6,133 |
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
Buying a home in 20678?
A typical home in ZIP code 20678 is worth about $473,800 (Zillow Home Value Index). The median household here earns $125,732 a year. See what buying here would cost per month, with Maryland average taxes and insurance filled in.
Monthly payment for a $473,800 homeWhat can a $125,732 income afford?Rental property numbers
About ZIP code 20678
What city is ZIP code 20678?
ZIP code 20678 is in Prince Frederick, MD, in Calvert County.
What county is ZIP code 20678 in?
20678 is mainly in Calvert County, Maryland.
What is the population of ZIP code 20678?
About 12,752 people live in ZIP code 20678, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 20678 in?
20678 is in Eastern Time (UTC−5). It observes daylight saving time.