List of ZIP Codes in St. Mary's County
The following table lists ZIP Codes associated with St. Mary's 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 | 20606 | 38.25412 | -76.73878 | Abell | 204 | 86.6 |
| 2 | 20609 | 38.27191 | -76.74625 | Avenue | 976 | 37.6 |
| 3 | 20618 | 38.28152 | -76.78891 | Bushwood | 1,513 | 77.0 |
| 4 | 20619 | 38.2919 | -76.52714 | California | 14,743 | 354.3 |
| 5 | 20620 | 38.23288 | -76.52196 | Callaway | 1,160 | 104.5 |
| 6 | 20621 | 38.33062 | -76.79438 | Chaptico | 902 | 25.1 |
| 7 | 20624 | 38.33523 | -76.73451 | Clements | 1,157 | 43.0 |
| 8 | 20626 | 38.23256 | -76.76404 | Coltons Point | 198 | 50.0 |
| 9 | 20628 | 38.1459 | -76.35027 | Dameron | 791 | 47.1 |
| 10 | 20630 | 38.16653 | -76.47087 | Drayden | 346 | 19.2 |
| 11 | 20634 | 38.24582 | -76.49412 | Great Mills | 6,976 | 385.3 |
| 12 | 20636 | 38.35582 | -76.57212 | Hollywood | 10,357 | 116.4 |
| 13 | 20650 | 38.27186 | -76.63276 | Leonardtown | 15,979 | 100.5 |
| 14 | 20653 | 38.22795 | -76.43139 | Lexington Park | 26,799 | 311.8 |
| 15 | 20656 | 38.33914 | -76.6787 | Loveville | 122 | 81.7 |
| 16 | 20659 | 38.41886 | -76.73238 | Mechanicsville | 23,918 | 95.2 |
| 17 | 20660 | 38.36928 | -76.70741 | Morganza | 16 | 6.8 |
| 18 | 20667 | 38.21782 | -76.44537 | Park Hall | 98 | 15.9 |
| 19 | 20670 | 38.2824 | -76.42031 | Patuxent River | 1,577 | 65.1 |
| 20 | 20674 | 38.13307 | -76.50019 | Piney Point | 638 | 132.7 |
| 21 | 20680 | 38.11071 | -76.37353 | Ridge | 702 | 34.4 |
| 22 | 20684 | 38.14308 | -76.41027 | Saint Inigoes | 825 | 38.2 |
| 23 | 20686 | 38.18557 | -76.43898 | Saint Marys City | 949 | 1351.8 |
| 24 | 20687 | 38.07578 | -76.34382 | Scotland | 331 | 25.6 |
| 25 | 20690 | 38.15916 | -76.52631 | Tall Timbers | 1,046 | 242.1 |
| 26 | 20692 | 38.18352 | -76.50682 | Valley Lee | 438 | 23.5 |
About St. Mary's County ZIP Codes
St. Mary's County in Maryland (MD) is served by approximately 26 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 112,761 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 St. Mary's County are located in cities such as Lexington Park, Mechanicsville, Leonardtown, California, Hollywood. These cities and towns help define the economic and demographic character of the county.
Most ZIP Codes in St. Mary's County, Maryland follow the America/New_York time zone.
Maryland Counties ZIP Codes
- Allegany County ZIP Codes
- Anne Arundel County ZIP Codes
- Baltimore County ZIP Codes
- Calvert County ZIP Codes
- Caroline County ZIP Codes
- Carroll County ZIP Codes
- Cecil County ZIP Codes
- Charles County ZIP Codes
- Dorchester County ZIP Codes
- Frederick County ZIP Codes
- Garrett County ZIP Codes
- Harford County ZIP Codes
- Howard County ZIP Codes
- Kent County ZIP Codes
- Montgomery County ZIP Codes
- Prince George's County ZIP Codes
- Queen Anne's County ZIP Codes
- Somerset County ZIP Codes
- St. Mary's County ZIP Codes
- Talbot County ZIP Codes
- Washington County ZIP Codes
- Wicomico County ZIP Codes
- Worcester County ZIP Codes