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ZIP code 21778
Rocky Ridge, MD · Frederick County
About ZIP code 21778
- ZIP code 21778 is in Rocky Ridge, Frederick County, Maryland.
- About 745 people live in it, which is 15.8 people per square mile.
- Time zone: Eastern Standard Time.
- The middle of the ZIP code is at 39.616, -77.338.
A ZIP code is a mail delivery area, not a town border, and one ZIP code can cover parts of several towns. To check a single address, use the US Postal Service lookup.
Graceham, MD
The closest town we cover is Graceham, MD, about 3 miles from the middle of this ZIP code. 121 people live in Graceham. Typical household income is $93,036. A typical home costs $307,700.
- Stronger than most towns on: Home internet and working from home, Jobs and income and Long, healthy lives.
- Weaker than most towns on: Diversity & community, Pleasant weather for being outdoors and Cost of living.
Nearby ZIP codes
- 21757 Keymar · 2,671 people
- 21788 Thurmont · 11,654 people
- 21727 Emmitsburg · 6,052 people
- 21798 Woodsboro · 2,928 people
- 21780 Sabillasville · 2,159 people
- 21793 Walkersville · 10,719 people
- 21791 Union Bridge · 5,340 people
- 21787 Taneytown · 11,645 people
ZIP code list from SimpleMaps US Zips. Population is a US Census Bureau estimate. These are estimates, so check official sources before you decide.