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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/20742

20742

ZIP 20742 is in College Park, Maryland, in Prince George's County; Eastern time. College Park has 3 ZIP codes; the others are 20740 and 20741.

Type
Standard
Time zone
America/New_York
Population
4,350
Coordinates
38.9942, -76.9434
☼ Live from 20742 — College Park, MD

Weather right now

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NEXRAD radar
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Local time: —

Where 20742 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 20742
  • 🔢 Type 20742 into a pocket calculator and turn it upside down: ZhLOZ — not quite a word, sorry.
  • ➕ As a number, 20,742 = 2 × 3 × 3457. Its digits add up to 15, a total 1,657 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101000100000110
  • 🏠 Its numerical neighbours: 20741 (College Park, MD, 12 mi away) and 20743 (Capitol Heights, MD, 8 mi away).
  • 🔄 Backwards, 20742 becomes 24702, which is not a ZIP code at all.
  • 👥 32 other ZIP codes are made of exactly the same digits (02472, 02724, 02742, 04227, 07422, 20427, …). The farthest-flung twin is 74022 in Copan, OK, 1,045 miles away.
  • 🧭 Farther south than 51% of all ZIP codes, and farther east than 82%.
  • 🎯1,154 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 20742 and you would come out at 38.99°S, 103.06°E — 868 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 54m of daylight. Shortest: 9h 26m.
  • 📏 At 0.322 square miles of land, 20742 is bigger than 4% of ZIP codes — about 156 football fields.
🌙 The sky over 20742 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population4,350This ZIP4,350
Households44This ZIP44
Housing units44This ZIP44
Median age19.0This ZIP19.0Maryland39.4US 38.9
Mean commute13.6 minThis ZIP13.6 min
Population density13,509.3 / sq miThis ZIP13,509.3 / sq mi

Business and tax activity

Business establishments46This ZIP46
Employees902This ZIP902
Annual payroll$48,114,000This ZIP$48,114,000

Land area

Land area0.32 sq miThis ZIP0.32 sq mi
Water area0.00 sq mi

Other place names in 20742

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

ZIP codes near 20742

ZIPCityDistance
20740 College Park, MD 0.9 mi
20783 Hyattsville, MD 1.3 mi
20788 Hyattsville, MD 1.8 mi
20787 Hyattsville, MD 2.1 mi
20782 Hyattsville, MD 2.3 mi
20737 Riverdale, MD 2.7 mi
20903 Silver Spring, MD 2.8 mi
20781 Hyattsville, MD 2.9 mi
20770 Greenbelt, MD 2.9 mi
20912 Takoma Park, MD 3.2 mi

Find every ZIP code within 10 miles of 20742 →

Questions about this ZIP code

Where is ZIP code 20742?

20742 is in College Park, Maryland, in Prince George's County, part of the Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan area. Its published point location is 38.9942, -76.9434.

What county is 20742 in?

20742 lies in Prince George's County.

What time zone is 20742 in?

20742 uses America/New_York.

How many people live in 20742?

About 4,350 people live in ZIP code 20742, in 44 households, at 13,509.3 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What ZIP codes are near 20742?

The closest are 20740 (0.9 mi), 20783 (1.3 mi), 20788 (1.8 mi), 20787 (2.1 mi) and 20782 (2.3 mi).

Is 20742 a PO Box ZIP code?

20742 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “20742 ZIP Code — College Park, Maryland (Prince George's County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/20742

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