List of ZIP Codes in Washington County
The following table lists ZIP Codes associated with Washington County, Maryland, based on ZIP Code Tabulation Area (ZCTA) data from the U.S. Census Bureau.
| S.N. | Zip Code | Latitude | Longitude | City | Population | Density |
|---|---|---|---|---|---|---|
| 1 | 21711 | 39.66808 | -78.01247 | Big Pool | 789 | 12.4 |
| 2 | 21713 | 39.52618 | -77.66933 | Boonsboro | 10,146 | 99.0 |
| 3 | 21715 | 39.37879 | -77.66063 | Brownsville | 18 | 28.2 |
| 4 | 21719 | 39.70501 | -77.49977 | Cascade | 1,162 | 108.5 |
| 5 | 21722 | 39.66575 | -77.91457 | Clear Spring | 6,918 | 46.9 |
| 6 | 21733 | 39.55004 | -77.75838 | Fairplay | 1,240 | 82.0 |
| 7 | 21734 | 39.60583 | -77.70382 | Funkstown | 826 | 660.0 |
| 8 | 21740 | 39.63233 | -77.73902 | Hagerstown | 63,140 | 343.9 |
| 9 | 21742 | 39.67363 | -77.65928 | Hagerstown | 35,114 | 291.6 |
| 10 | 21746 | 39.56591 | -77.71409 | Hagerstown | 2,416 | 3553.3 |
| 11 | 21750 | 39.68698 | -78.2129 | Hancock | 3,585 | 22.5 |
| 12 | 21756 | 39.45758 | -77.70118 | Keedysville | 3,172 | 52.6 |
| 13 | 21758 | 39.34567 | -77.66265 | Knoxville | 4,238 | 51.1 |
| 14 | 21767 | 39.69773 | -77.74638 | Maugansville | 914 | 1025.3 |
| 15 | 21779 | 39.42447 | -77.65398 | Rohrersville | 1,449 | 57.5 |
| 16 | 21781 | 39.57123 | -77.75981 | Saint James | 34 | 54.7 |
| 17 | 21782 | 39.4552 | -77.75995 | Sharpsburg | 4,056 | 53.4 |
| 18 | 21783 | 39.64885 | -77.55903 | Smithsburg | 9,881 | 80.2 |
| 19 | 21795 | 39.582 | -77.82733 | Williamsport | 9,942 | 119.4 |
About Washington County ZIP Codes
Washington County in Maryland (MD) is served by approximately 19 ZIP Codes. These codes cover residential neighborhoods, business districts, and rural areas that fall under the county's jurisdiction.
Based on ZIP-level population estimates, the total population covered by these ZIP Codes is around 159,040 people. Population and density values vary from one ZIP Code to another, reflecting the mix of dense urban communities and lower-density suburban or rural zones.
Many of the most significant population centers in Washington County are located in cities such as Hagerstown, Boonsboro, Williamsport, Smithsburg, Clear Spring. These cities and towns help define the economic and demographic character of the county.
Most ZIP Codes in Washington County, Maryland follow the America/New_York time zone.
Maryland Counties ZIP Codes
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- Prince George's County ZIP Codes
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