ZIP Code 20678
20678 is one of Maryland's ZIP codes, delivering to addresses in Prince Frederick, Calvert County.
- City
- Prince Frederick
- County
- Calvert County
- State
- Maryland
- Prefix
- 206xx
Where this code sits
20678 is part of the 206xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Prince Frederick.
Area codes over the same ground
Postal and telephone geography are drawn separately, so these codes cover the area 20678 delivers to without sharing its boundary.
- 227 Area code 227
- 240 Area code 240
- 301 Area code 301
- 410 Area code 410
- 443 Area code 443
- 667 Area code 667
ZIP codes nearest 20678
| ZIP code | Distance | Delivers to |
|---|---|---|
| ZIP code 20610 | 1.2 mi | Barstow, MD |
| ZIP code 20676 | 4.2 mi | Port Republic, MD |
| ZIP code 20612 | 4.9 mi | Benedict, MD |
| ZIP code 20639 | 5.3 mi | Huntingtown, MD |
| ZIP code 20608 | 7.3 mi | Aquasco, MD |
| ZIP code 20685 | 7.4 mi | Saint Leonard, MD |
| ZIP code 20689 | 8.0 mi | Sunderland, MD |
| ZIP code 20615 | 8.4 mi | Broomes Island, MD |
Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Scope ZIP code 20678. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.