La Plata, MD ZIP code
The ZIP code for La Plata, Maryland is 20646. It is in Charles County.
- Population in these ZIPs
- 21,400
- Avg. median income
- $132,000population-weighted
- Typical home value
- $472,900population-weighted
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La Plata, MD ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 20646 | 21,400 | $131,974 | $472,900 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near La Plata
- Port Tobacco 3 mi
- Pomfret 4 mi
- Bel Alton 5 mi
- White Plains 5 mi
- Waldorf 6 mi
- Welcome 6 mi
- Faulkner 7 mi
- Bryantown 8 mi
- Marbury 9 mi
- Charlotte Hall 10 mi
- Accokeek 11 mi
- Indian Head 11 mi
Frequently asked questions
What is the ZIP code for La Plata, MD?
The ZIP code for La Plata, MD is 20646.
What county is La Plata, Maryland in?
La Plata ZIP codes are in Charles County.