Zip Code 20637 — Hughesville, MD
20637 is a ZIP Code associated with Hughesville, MD, located within Charles. 20637 ranks #8 out of 22 ZIP codes in Charles County by population (and #223 out of 477 in MD). The area supports an estimated population of 6,133 residents across Data Pending housing units, with a population density of 72.4 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (38.525770, -76.778970)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 20637 |
| Primary City | Hughesville |
| State / Province | MD |
| County | Charles |
| Total Population | 6,133 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 72.4 people/sq mi |
| Timezone | America/New_York |
How 20637 Compares
| Metric | ZIP 20637 | Charles County | MD State Average |
|---|
| Population | 6,133 | 170,349 (Total) | 6,205,597 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 72.4 /sq mi | -- | -- |
| County Pop Rank | #8 of 22 | -- | -- |
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 →