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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/52242

52242

ZIP 52242 is in Iowa City, Iowa, in Johnson County; area code 319; Central time. Iowa City has 6 ZIP codes; the others are 52240, 52243, 52244, 52245 and 52246.

Type
Standard
Time zone
America/Chicago
County
Johnson
Metro area
Iowa City, IA
Population
4,688
Coordinates
41.6629, -91.5435
☼ Live from 52242 — Iowa City, IA

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Local time: —

Where 52242 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 52242
  • 🔢 Type 52242 into a pocket calculator and turn it upside down: ZhZZS — not quite a word, sorry.
  • ➕ As a number, 52,242 = 2 × 3 × 8707. Its digits add up to 15, a total 1,657 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100110000010010
  • 🏠 Its numerical neighbours: 52241 (Coralville, IA, 4 mi away) and 52243 (Iowa City, IA, 1 mi away).
  • 🔄 Backwards, 52242 becomes 24225 — and that is a real ZIP code: Cleveland, VA, 597 miles away.
  • 👥 9 other ZIP codes are made of exactly the same digits (22245, 22524, 22542, 24225, 24522, 25422, …). The farthest-flung twin is 22524 in Mount Holly, VA, 824 miles away.
  • 🧭 Farther north than 72% of all ZIP codes, and farther west than 60%.
  • 🎯389 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 52242 and you would come out at 41.66°S, 88.46°E — 1,027 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 12m of daylight. Shortest: 9h 09m.
  • 📏 At 0.716 square miles of land, 52242 is bigger than 7% of ZIP codes — about 347 football fields.
🌙 The sky over 52242 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population4,688This ZIP4,688
Households21This ZIP21
Housing units21This ZIP21
Median age19.1This ZIP19.1Iowa38.6US 38.9
Bachelor's degree or higher0.0%
Mean commute12.8 minThis ZIP12.8 min
Population density6,547.5 / sq miThis ZIP6,547.5 / sq mi

Business and tax activity

Business establishments23This ZIP23
Employees13,387This ZIP13,387
Annual payroll$782,482,000This ZIP$782,482,000

Land area

Land area0.72 sq miThis ZIP0.72 sq mi
Water area0.08 sq miThis ZIP0.08 sq mi

Other place names in 52242

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

ZIP codes near 52242

ZIPCityDistance
52243 Iowa City, IA 0.7 mi
52245 Iowa City, IA 1.8 mi
52246 Iowa City, IA 2.9 mi
52240 Iowa City, IA 3.2 mi
52241 Coralville, IA 3.7 mi
52235 Hills, IA 5.9 mi
52340 Tiffin, IA 7.5 mi
52317 North Liberty, IA 8.6 mi
52244 Iowa City, IA 8.7 mi
52333 Solon, IA 10.1 mi

Find every ZIP code within 10 miles of 52242 →

Questions about this ZIP code

Where is ZIP code 52242?

52242 is in Iowa City, Iowa, in Johnson County, part of the Iowa City, IA metropolitan area. Its published point location is 41.6629, -91.5435.

What county is 52242 in?

52242 lies in Johnson County.

What area code is 52242?

Iowa City uses area code 319, from NANPA's telephone records.

What time zone is 52242 in?

52242 uses America/Chicago.

How many people live in 52242?

About 4,688 people live in ZIP code 52242, in 21 households, at 6,547.5 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 52242?

The closest are 52243 (0.7 mi), 52245 (1.8 mi), 52246 (2.9 mi), 52240 (3.2 mi) and 52241 (3.7 mi).

Is 52242 a PO Box ZIP code?

52242 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “52242 ZIP Code — Iowa City, Iowa (Johnson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/52242

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