Cecil County ZIP Codes

Cecil County is a county of Maryland.

ZIP codes: 17
Cities & towns: 16
Area codes: 3
Land area: 346 sq mi

Every ZIP code in Cecil County

219xx

The complete list of Cecil County, MD ZIP codes with the city each one delivers to.
ZIP code	City
21901	North East
21902	Perry Point
21903	Perryville
21904	Port Deposit
21911	Rising Sun
21912	Warwick
21913	Cecilton
21914	Charlestown
21915	Chesapeake City
21916	Childs
21917	Colora
21918	Conowingo
21919	Earleville
21920	Elk Mills
21921	Elkton
21922	Elkton
21930	Georgetown

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Cecil County codes above are listed without a column we would have to invent.

Cities and towns in Cecil County

A further 8 places in Cecil County appear in the postal source without a page of its own; their codes are in the table above and each one links to its own page.

Area codes covering Cecil County

Telephone and postal boundaries are drawn by different bodies, so these codes overlap the county without matching its edges.

Where Cecil County's ZIP codes sit

Each point is the reference point of one Cecil County ZIP code, plotted from its record coordinates. The outline is the convex envelope of those points — a footprint, not a boundary.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope every ZIP code recorded in Cecil County. Source GeoNames US postal codes (2026-07 postal dump), Census 2024 county Gazetteer (2024 Gazetteer) and geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot). Updated 16 July 2026. The outline is a convex envelope of ZIP reference points, not a jurisdiction boundary.