List of 15 Zip Codes in St. Mary's County, Maryland

On this page, we'll list out the 15 St. Mary's County, Maryland ZIP codes we have, including the land area and county name of each code.

Maryland is the 42nd largest state by total land area, with a land area of 12,406 square miles (32,131 square kilometers) and has a total population of 6,037,624 people as of the most recent U.S. Census survey.

St. Mary's County makes up approximately 3.97% of the total land area for Maryland and we have 15 zip codes for the county in our database, which you can see details of below, with land area information for each zip code.

ZIP Code Land Area (Sq. Meters) Land Area (Sq. Miles) Land Area (Sq. Kilometers)
20619 40,517,000 16 41
20622 96,821,300 37 97
20634 17,757,500 7 18
20650 155,915,000 60 156
20653 84,244,800 33 84
20653 84,244,800 33 84
20659 242,995,000 94 243
20659 242,995,000 94 243
20659 242,995,000 94 243
20670 24,425,800 9 24
20674 5,149,700 2 5
20674 5,149,700 2 5
20690 4,685,440 2 5
20690 4,685,440 2 5
20692 22,533,100 9 23

More Counties in Maryland

If you want to search and find zip codes for different counties in Maryland, the list below contains links to each of the 25 Maryland counties we have data for.

Data Source(s)

All of the zip code data on this page is sourced from the United States Census Bureau geography reference files.

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If you found the data or information on this page useful in your research, please use the tool below to properly cite or reference Name Census as the source. We appreciate your support!

  • "List of 15 Zip Codes in St. Mary's County, Maryland". NameCensus.com. Accessed on June 24, 2024. https://namecensus.com/zip-codes/maryland/st-marys-county/.

  • "List of 15 Zip Codes in St. Mary's County, Maryland". NameCensus.com, https://namecensus.com/zip-codes/maryland/st-marys-county/. Accessed 24 June, 2024

  • List of 15 Zip Codes in St. Mary's County, Maryland. NameCensus.com. Retrieved from https://namecensus.com/zip-codes/maryland/st-marys-county/.