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/KEMP-MILL

Kemp Mill ZIP codes, Maryland

No ZIP code is named for Kemp Mill, MD; addresses there use a neighbouring town's name. 2 ZIP codes cover it: 20902 and 20901. Its area codes are 240, 301 and 227.

USPS city name
0 ZIP codes
Overlapping the city
2 more
Population
13,042
Area codes
240, 301, 227

NANPA lists no telephone rate centre for Kemp Mill itself, so these are the area codes of the nearest one, Gaithersburg (6.9 miles). A town on an area-code boundary can differ from its neighbour.

Kemp Mill in numbers

About 13,042 people live in Kemp Mill, in 4,477 households. The median household income is $146,354 a year, 41% above the Maryland median of $103,678 (US: $80,734). The median owner-occupied home is valued at $596,600 (42% above the Maryland median), and median gross rent is $2,177 a month. The median age is 39.0; 64.8% of adults 25 and over hold a bachelor's degree or higher (43.4% across Maryland); the average commute takes 31 minutes.

Population13,042Kemp Mill13,042
Households4,477Kemp Mill4,477
Median age39.0Kemp Mill39.0Maryland39.4US 38.9
Median household income$146,354Kemp Mill$146,354Maryland$103,678US $80,734
Median home value$596,600Kemp Mill$596,600Maryland$419,900US $332,700
Median gross rent$2,177Kemp Mill$2,177Maryland$1,705US $1,413
Bachelor's degree or higher64.8%Kemp Mill64.8%Maryland43.4%US 35.7%
Mean commute31.2 minKemp Mill31.2 minMaryland31.1 minUS 26.4 min
Population density5,198 / sq miKemp Mill5,198 / sq mi

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

ZIP codes covering Kemp Mill

These ZIP codes cover part of Kemp Mill but are addressed as somewhere else.

ZIP codes overlapping Kemp Mill
ZIP City Type Population Median income Median home
20901 Silver Spring , MD Standard 36,435 $131,386 $589,800
20902 Silver Spring , MD Standard 54,261 $114,486 $551,200

Map of Kemp Mill ZIP codes

2090120902

The ZIP codes of Kemp Mill, 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 Kemp Mill

The nearest larger towns are White Oak (17,329 people, 1.9 mi), Wheaton (52,926 people, 2.0 mi) and Glenmont (17,208 people, 2.4 mi).

Towns near Kemp Mill
TownPopulationDistance
Burnt Mills 3,751 1.4 mi
Four Corners 8,150 1.4 mi
White Oak 17,329 1.9 mi
Forest Glen 6,840 2.0 mi
Wheaton 52,926 2.0 mi
Glenmont 17,208 2.4 mi
Colesville 14,519 2.5 mi
North Kensington 8,954 2.7 mi
Silver Spring 81,462 2.7 mi
Hillandale 5,060 2.7 mi
South Kensington 8,148 2.9 mi
Layhill 5,497 3.5 mi
Calverton 17,624 4.0 mi
Langley Park 21,508 4.2 mi

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

Cite this page

zipcodes.pro. “Kemp Mill, MD ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/md/kemp-mill

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