ZIP code
21778
Rocky Ridge, MD
STANDARD
21778 covers Rocky Ridge in Frederick County, with 840 people in the ACS estimate.
Map of 21778, Rocky Ridge
ZIP code map
About ZIP code 21778
More enterprise fields
People in 21778
Race
- White1,057
- Black or African American4
- American Indian or Alaska Native2
- Asian17
- Other race28
- Two or more races37
Hispanic or Latino (any race): 39
Age
- Under 10114
- 10 to 19107
- 20 to 29120
- 30 to 39112
- 40 to 49135
- 50 to 59163
- 60 to 69198
- 70 to 79150
- 80 and older46
Income and housing in 21778
Education
- High school graduate93.9%
- Bachelor's degree23.1%
- Graduate degree17.7%
Places covering 21778
Cities and places
No place overlap rows for this ZIP.
Counties
- Frederick County100.0%
100.0% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 21778
IRS populationACS population
Hover a year for IRS and ACS values.
ZIP codes near 21778
- 21788Thurmont3.8 miPop 11,919 · Income $93,717
- 21757Keymar4.0 miPop 2,810 · Income $98,520
- 21775New Midway4.4 miPop 21 · Income —
- 21759Ladiesburg5.1 miPop 20 · Income —
- 21798Woodsboro5.6 miPop 2,765 · Income $125,583
- 21727Emmitsburg6.2 miPop 6,079 · Income $92,697
- 21780Sabillasville8.9 miPop 1,814 · Income $64,602
- 21793Walkersville9.0 miPop 10,914 · Income $128,504
- 21791Union Bridge9.2 miPop 4,734 · Income $90,460
- 21787Taneytown9.5 miPop 11,549 · Income $88,212
- 21762Libertytown9.9 miPop 176 · Income —
- 21719Cascade10.5 miPop 1,162 · Income $75,278
ZIP code 21778 FAQ
- What city is ZIP code 21778 in?
- 21778 is in Rocky Ridge, MD.
- What county is 21778 in?
- 21778 is in Frederick County.
- What is the median household income in 21778?
- The median household income in 21778 is $110,489.
- Which ZIP codes are near 21778?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 21778.