ZIP Code 21757
Keymar, Maryland
ZIP Code Information
ZIP code 21757 identifies a postal delivery area inside Keymar, Maryland. The ZIP lies within Carroll County. Clocks here follow the America/New_York time zone (UTC-4).
About 3,296 people live in this ZIP code, and the median household income is roughly $76,298 a year. Figures come from the U.S. Census Bureau American Community Survey and are refreshed as new five-year estimates are released.
What you can do with ZIP code 21757
- Write a mailing address: Keymar, MD 21757. The ZIP goes last, after the state abbreviation.
- Check whether a shipping or delivery quote applies to this area — most US carriers price by ZIP code rather than by city.
- Look up the local time zone before scheduling a call — the ZIP tells you which zone applies to that address.
- Compare the ZIP with neighbouring codes to see how population and income shift block by block.
Location Map
Full mapNearby ZIP Codes
Radius search| ZIP Code | City | Distance | |
|---|---|---|---|
| 21759 | Ladiesburg | 0.9 km | Distance |
| 21775 | New Midway | 1.1 km | Distance |
| 21798 | Woodsboro | 4.1 km | Distance |
| 21778 | Rocky Ridge | 6.1 km | Distance |
| 21762 | Libertytown | 9.7 km | Distance |
| 21793 | Walkersville | 11.2 km | Distance |
| 21788 | Thurmont | 11.2 km | Distance |
| 21791 | Union Bridge | 12.9 km | Distance |
| 21792 | Unionville | 13 km | Distance |
| 21701 | Frederick | 14.1 km | Distance |
Nearby Cities
Ladiesburg, Maryland
(0.9 km)
New Midway, Maryland
(1.1 km)
Woodsboro, Maryland
(4.1 km)
Rocky Ridge, Maryland
(6.1 km)
Libertytown, Maryland
(9.7 km)
Walkersville, Maryland
(11.2 km)
Thurmont, Maryland
(11.2 km)
Union Bridge, Maryland
(12.9 km)
Frequently Asked Questions
ZIP code 21757 is located in Keymar, Maryland.
ZIP code 21757 is in Carroll county, Maryland.
ZIP code 21757 is in the America/New_York timezone.