Zip Code 20628 — Dameron, MD
20628 is a ZIP Code associated with Dameron, MD, located within St. Mary's. 20628 ranks #20 out of 0 ZIP codes in St. Mary's County by population (and #392 out of 477 in MD). The area supports an estimated population of 503 residents across Data Pending housing units, with a population density of 29.9 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (38.145900, -76.350270)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 20628 |
| Primary City | Dameron |
| State / Province | MD |
| County | St. Mary's |
| Total Population | 503 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 29.9 people/sq mi |
| Timezone | America/New_York |
How 20628 Compares
| Metric | ZIP 20628 | St. Mary's County | MD State Average |
|---|
| Population | 503 | N/A (Total) | 6,205,597 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 29.9 /sq mi | -- | -- |
| County Pop Rank | #20 of 0 | -- | -- |
Nearby ZIP Codes
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 →