County ZIP codes · Maryland · FIPS 24017
Charles County, MD ZIP Codes
Charles County, Maryland has 28 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 25 residential and 3 for PO boxes or a single organization. 22 of the residential ones lie mainly in Charles County and 3 mainly in a neighboring county; 5 cross the county line. Median household income ranges from $100,593 in 20640 (Indian Head) to $160,121 in 20637 (Hughesville) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Charles County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $121,654 and $151,422.
They carry 23 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 25 residential ZIP codes in Charles County
22 ZIP codes lie mainly in Charles County; 3 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 20603 | Waldorf | 31,844 | 1,966 | $138k | $454k | 100% |
| 20602 | Waldorf | 28,331 | 1,958 | $107k | $377k | 100% |
| 20601 | Waldorf | 26,945 | 563 | $118k | $402k | 84% |
| 20646 | La Plata | 21,400 | 268 | $132k | $450k | 100% |
| 20695 | White Plains | 16,407 | 1,140 | $142k | $471k | 100% |
| 20640 | Indian Head | 10,685 | 256 | $101k | $325k | 100% |
| 20616 | Bryans Road | 8,057 | 831 | $128k | $387k | 100% |
| 20637 | Hughesville | 6,133 | 187 | $160k | $555k | 100% |
| 20622 | Charlotte Hall | 5,185 | 142 | $124k | $439k | 83% |
| 20664 | Newburg | 3,138 | 77 | $88k | $476k | 100% |
| 20662 | Nanjemoy | 2,129 | 38 | $87k | $397k | 100% |
| 20677 | Port Tobacco | 2,088 | 133 | $166k | $577k | 100% |
| 20675 | Pomfret | 1,796 | 252 | $127k | $484k | 100% |
| 20693 | Welcome | 1,496 | 74 | $126k | $375k | 100% |
| 20611 | Bel Alton | 1,219 | 147 | $152k | $461k | 100% |
| 20658 | Marbury | 866 | 198 | $104k | $340k | 100% |
| 20625 | Cobb Island | 849 | 1,736 | – | $245k | 100% |
| 20645 | Issue | 814 | 591 | $191k | $532k | 100% |
| 20632 | Faulkner | 485 | 74 | – | $475k | 100% |
| 20617 | Bryantown | 334 | 56 | $104k | $502k | 100% |
| 20612 | Benedict | 148 | 635 | $41k | – | 100% |
| 20661 | Mount Victoria | no residents | 0 | – | – | 100% |
Partly in Charles County
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
5 ZIP codes of Charles County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Charles | Elsewhere |
|---|---|---|
| 20601 | 84% | Prince George's County16% |
| 20659 | 4% | St. Mary's County96% |
| 20613 | 8% | Prince George's County92% |
| 20607 | 4% | Prince George's County96% |
| 20622 | 83% | St. Mary's County17% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 20604 | Waldorf |
| 20643 | Ironsides |
| 20682 | Rock Point |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Charles County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Charles County starts with 206.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 206 | Southern, MD (SCF 207) | 28 | 68 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.