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Zip Code 21705 — Frederick, MD

21705 is a ZIP Code associated with Frederick, MD, located within Frederick. The postal region supports an estimated population of 6 residents across Data Pending housing units, with a population density of 97.9 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.408870, -77.410020)

Data Metric	Local Statistic
Postal / Zip Code	21705
Primary City	Frederick
State / Province	MD
County	Frederick
Total Population	6
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	97.9 people/sq mi
Timezone	America/New_York

How 21705 Compares

Metric	ZIP 21705	Frederick County	MD State Average
Population	6	300,100	6,205,597
Median Income	Data Pending	N/A	N/A
Population Density	97.9 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 21703	Frederick	4.2 mi	41,960	N/A
Zip 21704	Frederick	4.5 mi	20,006	N/A
Zip 21701	Frederick	4.8 mi	43,048	N/A
Zip 21717	Buckeystown	5.0 mi	245	N/A
Zip 21714	Braddock Heights	5.3 mi	95	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 →