Great Mills, MD ZIP Codes, Coordinates & Counties
Great Mills, Maryland has 1 ZIP code in St. Mary's county. The approximate center of Great Mills is 38.244, -76.495. Great Mills has about 7,804 known street addresses.
ZIP codes in Great Mills, MD
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 20634 | St. Mary's | 38.244 | -76.495 |
Counties Great Mills spans
St. Mary's
Most common streets in Great Mills
Lookout, Point Lookout, Church, Iverson, Harrison, Garfield, Goldenrod, Nancy, Chancellors Run, Victoria
Frequently asked questions
What ZIP codes are in Great Mills, MD?
Great Mills, Maryland has 1 ZIP code, ranging from 20634 to 20634. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Great Mills, MD in?
Great Mills is in St. Mary's county.
What are the latitude and longitude of Great Mills, MD?
The approximate center of Great Mills, Maryland is latitude 38.244, longitude -76.495. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Great Mills, MD have?
Great Mills has 1 ZIP code.
How many addresses are in Great Mills, MD?
Great Mills, Maryland has about 7,804 known street addresses in the sthan.io US address database.
What are the most common streets in Great Mills, MD?
Some of the most common street names in Great Mills are Lookout, Point Lookout, Church, Iverson, Harrison, Garfield.
What cities are near Great Mills, MD?
Cities near Great Mills include Callaway (2 mi), Lexington Park (3 mi), Park Hall (3 mi), California (4 mi), Valley Lee (4 mi).
Cities near Great Mills
Callaway, MD (2 mi) Lexington Park, MD (3 mi) Park Hall, MD (3 mi) California, MD (4 mi) Valley Lee, MD (4 mi) Patuxent River, MD (5 mi) Drayden, MD (6 mi) Saint Marys City, MD (6 mi)
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View the API →Last updated: June 2026 · Data: sthan.io US address database