Frederick County, Maryland — ZIP directory
18 ZIP codes in Frederick County. Pick a ZIP for services, power context, permits, and FAQs written for homeowners.
- Frederick 21701 — Frederick
- Frederick 21702 — Frederick
- Frederick 21703 — Frederick
- Frederick 21704 — Frederick
- Adamstown 21710 — Adamstown
- Brunswick 21716 — Brunswick
- Emmitsburg 21727 — Emmitsburg
- Ijamsville 21754 — Ijamsville
- Jefferson 21755 — Jefferson
- Knoxville 21758 — Knoxville
- Middletown 21769 — Middletown
- Monrovia 21770 — Monrovia
- Mount Airy 21771 — Mount Airy
- Myersville 21773 — Myersville
- New Market 21774 — New Market
- Thurmont 21788 — Thurmont
- Walkersville 21793 — Walkersville
- Woodsboro 21798 — Woodsboro