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zipcodes.pro — CITY/MD/SECRETARY

Secretary ZIP code, Maryland

The ZIP code for Secretary, MD is 21664, and its area codes are 667 and 410.

USPS city name
1 ZIP code
Population
635
Area codes
667, 410

NANPA lists no telephone rate centre for Secretary itself, so these are the area codes of the nearest one, Hurlock (4.9 miles). A town on an area-code boundary can differ from its neighbour.

Secretary in numbers

About 635 people live in Secretary, in 217 households. The median household income is $82,721 a year, 20% below the Maryland median of $103,678 (US: $80,734). The median owner-occupied home is valued at $172,000 (59% below the Maryland median), and median gross rent is $1,175 a month. The median age is 34.0; 20.3% of adults 25 and over hold a bachelor's degree or higher (43.4% across Maryland); the average commute takes 25 minutes.

Population635Secretary635
Households217Secretary217
Median age34.0Secretary34.0Maryland39.4US 38.9
Median household income$82,721Secretary$82,721Maryland$103,678US $80,734
Median home value$172,000Secretary$172,000Maryland$419,900US $332,700
Median gross rent$1,175Secretary$1,175Maryland$1,705US $1,413
Bachelor's degree or higher20.3%Secretary20.3%Maryland43.4%US 35.7%
Mean commute25.4 minSecretary25.4 minMaryland31.1 minUS 26.4 min
Population density2,182 / sq miSecretary2,182 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Secretary town. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Secretary

ZIP codes with the USPS city name Secretary
ZIP City Type Population Median income Median home
21664 Secretary , MD Standard 635 $82,721 $172,000

Map of Secretary ZIP codes

21664

The ZIP codes of Secretary, MD, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Secretary

The nearest larger towns are Hurlock (2,819 people, 4.5 mi), Trappe (1,055 people, 6.8 mi) and Preston (852 people, 7.4 mi).

Towns near Secretary
TownPopulationDistance
Hurlock 2,819 4.5 mi
Cambridge 13,152 8.0 mi
Federalsburg 2,837 11.1 mi
Easton 17,308 13.4 mi
Seaford, DE 8,485 18.3 mi
Denton 4,936 19.9 mi
Bridgeville, DE 2,745 20.2 mi
Laurel, DE 4,152 20.5 mi
Delmar 4,261 23.8 mi
Salisbury 33,285 25.3 mi
Fruitland 5,801 26.4 mi
Greensboro 2,634 26.5 mi
Grasonville 3,564 27.7 mi
Harrington, DE 3,838 29.7 mi

More nearby: every ZIP code in Dorchester County · Maryland ZIP codes

Cite this page

zipcodes.pro. “Secretary, MD ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/md/secretary

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