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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/21050

21050

ZIP 21050 is Forest Hill, Maryland, in Harford County; area codes 443, 410 and 667; Eastern time.

Type
Standard
Time zone
America/New_York
County
Harford
Population
17,466
Coordinates
39.5853, -76.3922
☼ Live from 21050 — Forest Hill, MD

Weather right now

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Local time: —

Where 21050 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 21050
  • 🔢 Type 21050 into a pocket calculator and turn it upside down: OSOIZ — not quite a word, sorry.
  • ➕ As a number, 21,050 = 2 × 5 × 5 × 421. Its digits add up to 8, a total 251 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101001000111010
  • 🏠 Its numerical neighbours: 21048 (Finksburg, MD, 29 mi away) and 21051 (Fork, MD, 8 mi away).
  • 🔄 Backwards, 21050 becomes 05012, which is not a ZIP code at all.
  • 👥 23 other ZIP codes are made of exactly the same digits (01520, 02051, 02150, 05201, 10025, 10502, …). The farthest-flung twin is 51020 in Galva, IA, 1,009 miles away.
  • 🧭 Farther north than 53% of all ZIP codes, and farther east than 84%.
  • 🎯1,176 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 21050 and you would come out at 39.59°S, 103.61°E — 865 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 58m of daylight. Shortest: 9h 22m.
  • 📏 At 29.0 square miles of land, 21050 is bigger than 45% of ZIP codes — room for about 22 Central Parks.
🌙 The sky over 21050 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population17,466This ZIP17,466
Households6,422This ZIP6,422
Housing units6,497This ZIP6,497
Median age44.1This ZIP44.1Maryland39.4US 38.9
Median household income$125,208This ZIP$125,208Maryland$103,678US $80,734
Median home value$456,800This ZIP$456,800Maryland$419,900US $332,700
Median gross rent$1,697This ZIP$1,697Maryland$1,705US $1,413
Bachelor's degree or higher45.1%This ZIP45.1%
Mean commute32.5 minThis ZIP32.5 min
Population density602.3 / sq miThis ZIP602.3 / sq mi

Business and tax activity

Business establishments497This ZIP497
Employees6,206This ZIP6,206
Annual payroll$342,969,000This ZIP$342,969,000
Tax returns filed9,620This ZIP9,620
Total adjusted gross income$1,092,997,000This ZIP$1,092,997,000

Land area

Land area29.00 sq miThis ZIP29.00 sq mi
Water area0.11 sq miThis ZIP0.11 sq mi

Other place names in 21050

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

ZIP codes near 21050

ZIPCityDistance
21014 Bel Air, MD 4.0 mi
21084 Jarrettsville, MD 4.4 mi
21047 Fallston, MD 4.7 mi
21154 Street, MD 5.3 mi
21018 Benson, MD 5.3 mi
21015 Bel Air, MD 6.0 mi
21013 Baldwin, MD 7.3 mi
21028 Churchville, MD 7.7 mi
21132 Pylesville, MD 7.8 mi
21051 Fork, MD 8.5 mi

Find every ZIP code within 10 miles of 21050 →

Questions about this ZIP code

Where is ZIP code 21050?

21050 is in Forest Hill, Maryland, in Harford County, part of the Baltimore-Columbia-Towson, MD metropolitan area. Its published point location is 39.5853, -76.3922.

What county is 21050 in?

21050 lies in Harford County.

What area code is 21050?

Forest Hill uses area codes 443, 410 and 667, from NANPA's telephone records.

What time zone is 21050 in?

21050 uses America/New_York.

How many people live in 21050?

About 17,466 people live in ZIP code 21050, in 6,422 households, at 602.3 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 21050?

$125,208 a year, against $103,678 across Maryland.

What ZIP codes are near 21050?

The closest are 21014 (4 mi), 21084 (4.4 mi), 21047 (4.7 mi), 21154 (5.3 mi) and 21018 (5.3 mi).

Is 21050 a PO Box ZIP code?

21050 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “21050 ZIP Code — Forest Hill, Maryland (Harford County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21050

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