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 — ZIP/21052

21052

ZIP 21052 is Fort Howard, Maryland, in Baltimore County; area codes 443, 410 and 667; Eastern time.

Type
Standard
Time zone
America/New_York
County
Baltimore
Population
409
Coordinates
39.2050, -76.4396
☼ Live from 21052 — Fort Howard, MD

Weather right now

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NEXRAD radar
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Local time: —

Where 21052 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 21052
  • 🔢 Type 21052 into a pocket calculator and turn it upside down: ZSOIZ — not quite a word, sorry.
  • ➕ As a number, 21,052 = 2 × 2 × 19 × 277. Its digits add up to 10, a total 513 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101001000111100
  • 🏠 Its numerical neighbours: 21051 (Fork, MD, 19 mi away) and 21053 (Freeland, MD, 37 mi away).
  • 🔄 Backwards, 21052 becomes 25012, which is not a ZIP code at all.
  • 👥 35 other ZIP codes are made of exactly the same digits (01225, 01252, 01522, 02125, 02152, 02215, …). The farthest-flung twin is 51022 in Granville, IA, 1,041 miles away.
  • 🧭 Farther north than 50% of all ZIP codes, and farther east than 84%.
  • 🎯1,178 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 21052 and you would come out at 39.21°S, 103.56°E — 852 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 56m of daylight. Shortest: 9h 24m.
  • 📏 At 0.402 square miles of land, 21052 is bigger than 4% of ZIP codes — about 195 football fields.
🌙 The sky over 21052 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population409This ZIP409
Households168This ZIP168
Housing units168This ZIP168
Median age27.8This ZIP27.8Maryland39.4US 38.9
Median household income$77,300This ZIP$77,300Maryland$103,678US $80,734
Median home value$293,200This ZIP$293,200Maryland$419,900US $332,700
Bachelor's degree or higher35.8%This ZIP35.8%
Mean commute40.3 minThis ZIP40.3 min
Population density1,017.4 / sq miThis ZIP1,017.4 / sq mi

Business and tax activity

Business establishments6This ZIP6
Employees31This ZIP31
Annual payroll$1,339,000This ZIP$1,339,000

Land area

Land area0.40 sq miThis ZIP0.40 sq mi
Water area0.40 sq miThis ZIP0.40 sq mi

Other place names in 21052

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 21052

ZIPCityDistance
21219 Sparrows Point, MD 1.7 mi
21222 Dundalk, MD 5.1 mi
21221 Essex, MD 6.0 mi
21226 Curtis Bay, MD 6.6 mi
21122 Pasadena, MD 6.8 mi
21224 Baltimore, MD 7.3 mi
21060 Glen Burnie, MD 7.7 mi
21056 Gibson Island, MD 8.7 mi
21205 Baltimore, MD 9.5 mi
21225 Brooklyn, MD 9.5 mi

Find every ZIP code within 10 miles of 21052 →

Questions about this ZIP code

Where is ZIP code 21052?

21052 is in Fort Howard, Maryland, in Baltimore County, part of the Baltimore-Columbia-Towson, MD metropolitan area. Its published point location is 39.2050, -76.4396.

What county is 21052 in?

21052 lies in Baltimore County.

What area code is 21052?

Fort Howard uses area codes 443, 410 and 667, from NANPA's telephone records.

What time zone is 21052 in?

21052 uses America/New_York.

How many people live in 21052?

About 409 people live in ZIP code 21052, in 168 households, at 1,017.4 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 21052?

$77,300 a year, against $103,678 across Maryland.

What ZIP codes are near 21052?

The closest are 21219 (1.7 mi), 21222 (5.1 mi), 21221 (6 mi), 21226 (6.6 mi) and 21122 (6.8 mi).

Is 21052 a PO Box ZIP code?

21052 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “21052 ZIP Code — Fort Howard, Maryland (Baltimore County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21052

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