Zip Code 20667 — Park Hall, MD
20667 is a ZIP Code associated with Park Hall, MD, located within St. Mary's. 20667 ranks #24 out of 0 ZIP codes in St. Mary's County by population (and #440 out of 477 in MD). The area supports an estimated population of 150 residents across Data Pending housing units, with a population density of 24.3 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (38.217820, -76.445370)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 20667 |
| Primary City | Park Hall |
| State / Province | MD |
| County | St. Mary's |
| Total Population | 150 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 24.3 people/sq mi |
| Timezone | America/New_York |
How 20667 Compares
| Metric | ZIP 20667 | St. Mary's County | MD State Average |
|---|
| Population | 150 | N/A (Total) | 6,205,597 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 24.3 /sq mi | -- | -- |
| County Pop Rank | #24 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 →