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Zip Code 21769 — Middletown, MD

21769 is a ZIP Code associated with Middletown, MD, located within Frederick. The postal region supports an estimated population of 11,965 residents across Data Pending housing units, with a population density of 115.1 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.445820, -77.564890)

Data Metric	Local Statistic
Postal / Zip Code	21769
Primary City	Middletown
State / Province	MD
County	Frederick
Total Population	11,965
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	115.1 people/sq mi
Timezone	America/New_York

How 21769 Compares

Metric	ZIP 21769	Frederick County	MD State Average
Population	11,965	300,100	6,205,597
Median Income	Data Pending	N/A	N/A
Population Density	115.1 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 21714	Braddock Heights	3.8 mi	95	N/A
Zip 21718	Burkittsville	4.9 mi	134	N/A
Zip 21779	Rohrersville	5.0 mi	1,311	N/A
Zip 21755	Jefferson	5.9 mi	5,909	N/A
Zip 21702	Frederick	6.2 mi	49,605	N/A

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 →