Middletown, MD ZIP code
The ZIP code for Middletown, Maryland is 21769. It is in Frederick County.
- Population in these ZIPs
- 11,965
- Avg. median income
- $151,600population-weighted
- Typical home value
- $558,100population-weighted
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Middletown, MD ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 21769 | 11,965 | $151,563 | $558,100 |
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 Middletown
- Braddock Heights 4 mi
- Burkittsville 5 mi
- Rohrersville 5 mi
- Jefferson 6 mi
- Brownsville 7 mi
- Keedysville 7 mi
- Myersville 7 mi
- Knoxville 8 mi
- Boonsboro 8 mi
- Frederick 9 mi
- Brunswick 9 mi
- Sharpsburg 10 mi
Frequently asked questions
What is the ZIP code for Middletown, MD?
The ZIP code for Middletown, MD is 21769.
What county is Middletown, Maryland in?
Middletown ZIP codes are in Frederick County.