Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/MD/FLINTSTONE

Flintstone ZIP code, Maryland

The ZIP code for Flintstone, MD is 21530, and its area codes are 240, 227 and 301.

USPS city name
1 ZIP code
Population
1,404
Area codes
240, 227, 301

Flintstone in numbers

About 1,404 people live in Flintstone, in 648 households. The median household income is $63,542 a year, 39% below the Maryland median of $103,678 (US: $80,734). The median owner-occupied home is valued at $202,400 (52% below the Maryland median).

Population1,404Flintstone1,404
Households648Flintstone648
Median household income$63,542Flintstone$63,542Maryland$103,678US $80,734
Median home value$202,400Flintstone$202,400Maryland$419,900US $332,700

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the ZIP code addressed as Flintstone. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Flintstone

ZIP codes with the USPS city name Flintstone
ZIP City Type Population Median income Median home
21530 Flintstone , MD Standard 1,404 $63,542 $202,400

Map of Flintstone ZIP codes

21530

The ZIP codes of Flintstone, 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 Flintstone

The nearest larger towns are Cumberland (18,804 people, 10 mi), La Vale (4,196 people, 14 mi) and Cresaptown (5,121 people, 16 mi).

Towns near Flintstone
TownPopulationDistance
Cumberland 18,804 10.3 mi
La Vale 4,196 13.5 mi
Cresaptown 5,121 15.7 mi
Frostburg 6,977 19.0 mi
Bedford, PA 2,851 21.9 mi
Keyser, WV 4,857 28.3 mi

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

Cite this page

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

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