📍 View location on OpenStreetMap (38.245820, -76.494120)
| Data Metric | Local Statistic |
|---|---|
| Postal / Zip Code | 20634 |
| Primary City | Great Mills |
| State / Province | MD |
| County | St. Mary's |
| Total Population | 7,088 |
| Population Density | 391.4 people/sq mi |
| Timezone | America/New_York |
| Metric | ZIP 20634 | St. Mary's County records | MD records |
|---|---|---|---|
| Population estimate | 7,088 | 113,480 (sum) | 6,205,597 (sum) |
| Population Density | 391.4 /sq mi | -- | -- |
| County population rank | #6 of 26 | -- | -- |
| State population rank | #207 of 470 | -- | -- |
Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.
| ZIP Code | City | Distance | Population estimate |
|---|---|---|---|
| ZIP 20620 | Callaway | 1.8 mi | 1,115 |
| ZIP 20667 | Park Hall | 3.3 mi | 150 |
| ZIP 20653 | Lexington Park | 3.6 mi | 26,852 |
| ZIP 20619 | California | 3.7 mi | 14,212 |
| ZIP 20692 | Valley Lee | 4.4 mi | 505 |
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →