Frederick County, Maryland ZIP codes
32ZIP codes
27Cities and towns
301,840People in ZIP areas
227, 240, 301Area codes
Frederick County is in Maryland and the Eastern Time zone. ZIP codes don’t follow county lines exactly, so a ZIP code listed here can reach into a neighboring county.
All ZIP codes in Frederick County
| ZIP code | City | Type | Population | Median income |
|---|---|---|---|---|
| 21701 | Frederick | Standard | 43,048 | $106,577 |
| 21702 | Frederick | Standard | 49,605 | $106,983 |
| 21703 | Frederick | Standard | 41,960 | $106,334 |
| 21704 | Frederick | Standard | 20,006 | $161,063 |
| 21705 | Frederick | PO Box only | 6 | – |
| 21709 | Frederick | Unique | – | – |
| 21710 | Adamstown | Standard | 4,661 | $163,864 |
| 21714 | Braddock Heights | PO Box only | 95 | $161,806 |
| 21716 | Brunswick | Standard | 7,200 | $109,382 |
| 21717 | Buckeystown | PO Box only | 245 | $158,413 |
| 21718 | Burkittsville | Standard | 134 | $93,500 |
| 21727 | Emmitsburg | Standard | 6,052 | $95,236 |
| 21754 | Ijamsville | Standard | 8,156 | $182,188 |
| 21755 | Jefferson | Standard | 5,909 | $137,417 |
| 21757 | Keymar | Standard | 2,671 | $100,500 |
| 21758 | Knoxville | Standard | 4,409 | $111,528 |
| 21759 | Ladiesburg | PO Box only | – | – |
| 21762 | Libertytown | PO Box only | 139 | – |
| 21769 | Middletown | Standard | 11,965 | $151,563 |
| 21770 | Monrovia | Standard | 8,751 | $183,571 |
| 21771 | Mount Airy | Standard | 33,031 | $157,302 |
| 21773 | Myersville | Standard | 5,826 | $161,908 |
| 21774 | New Market | Standard | 17,134 | $171,103 |
| 21775 | New Midway | PO Box only | – | – |
| 21777 | Point Of Rocks | Standard | 2,462 | $159,708 |
| 21778 | Rocky Ridge | Standard | 745 | $76,458 |
| 21780 | Sabillasville | Standard | 2,159 | $83,785 |
| 21788 | Thurmont | Standard | 11,654 | $98,856 |
| 21790 | Tuscarora | Standard | 170 | $77,656 |
| 21792 | Unionville | PO Box only | – | – |
| 21793 | Walkersville | Standard | 10,719 | $121,971 |
| 21798 | Woodsboro | Standard | 2,928 | $116,607 |
Cities and towns in Frederick County
- Frederick 6 ZIPs
- Adamstown 1 ZIP
- Braddock Heights 1 ZIP
- Brunswick 1 ZIP
- Buckeystown 1 ZIP
- Burkittsville 1 ZIP
- Emmitsburg 1 ZIP
- Ijamsville 1 ZIP
- Jefferson 1 ZIP
- Keymar 1 ZIP
- Knoxville 1 ZIP
- Ladiesburg 1 ZIP
- Libertytown 1 ZIP
- Middletown 1 ZIP
- Monrovia 1 ZIP
- Mount Airy 1 ZIP
- Myersville 1 ZIP
- New Market 1 ZIP
- New Midway 1 ZIP
- Point Of Rocks 1 ZIP
- Rocky Ridge 1 ZIP
- Sabillasville 1 ZIP
- Thurmont 1 ZIP
- Tuscarora 1 ZIP
- Unionville 1 ZIP
- Walkersville 1 ZIP
- Woodsboro 1 ZIP
Area codes in Frederick County
Questions
- How many ZIP codes are in Frederick County, MD?
- Frederick County has 32 ZIP codes, 24 of them standard ZIP codes for street addresses.
- What cities are in Frederick County?
- Frederick County ZIP codes cover Frederick, Adamstown, Braddock Heights, Brunswick, Buckeystown, Burkittsville, Emmitsburg and Ijamsville and 19 other places.
- What area code is Frederick County, MD?
- Frederick County uses area codes 227, 240, 301, 304, 410, 443, 540, 571, 667, 681, 703 and 826.
- What time zone is Frederick County in?
- Frederick County is in Eastern Time.
Other Maryland counties
- Allegany County
- Anne Arundel County
- Baltimore city
- Baltimore County
- Calvert County
- Caroline County
- Carroll County
- Cecil County
- Charles County
- Dorchester County
- Garrett County
- Harford County
- Howard County
- Kent County
- Montgomery County
- Prince George's County
- Queen Anne's County
- Somerset County
- St. Mary's County
- Talbot County
- Washington County
- Wicomico County
- Worcester County