Postal reference / United States
20688Solomons, Maryland
ZIP code 20688 is a United States postal code for Solomons, Maryland. Its county association is Calvert County. The map reference point is at 38.3293, -76.4651.
- State / territory
- Maryland
- Recorded place name
- Solomons
- County association
- Calvert
- Estimated coordinate
- 38.3293, -76.4651
View on OpenStreetMap - ZIP prefix
- 206 · 68 ZIP codes share it
- Data source
- GeoNames postal reference, snapshot September 26, 2026
GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.
Area
- Land area
- 1.152 sq mi (2023 Census Gazetteer)
Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.
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Browse the other 604 ZIP codes recorded for Maryland, sorted by code with place and county.
Maryland directoryNearby ZIP code reference points
| ZIP code | Place | State | County association | Miles |
|---|---|---|---|---|
| 20629 | Dowell | MD | Calvert | 0.8 |
| 20657 | Lusby | MD | Calvert | 3.0 |
| 20670 | Patuxent River | MD | St. Mary's | 3.8 |
| 20619 | California | MD | St. Mary's | 4.1 |
| 20634 | Great Mills | MD | St. Mary's | 4.6 |
| 20636 | Hollywood | MD | St. Mary's | 5.5 |
| 20653 | Lexington Park | MD | St. Mary's | 5.6 |
| 20615 | Broomes Island | MD | Calvert | 7.6 |
Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.
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