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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/52240

52240

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

Type
Standard
Time zone
America/Chicago
County
Johnson
Metro area
Iowa City, IA
Population
35,074
Coordinates
41.6308, -91.4988
☼ Live from 52240 — Iowa City, IA

Weather right now

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Local time: —

Where 52240 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 52240
  • 🔢 Type 52240 into a pocket calculator and turn it upside down: OhZZS — not quite a word, sorry.
  • ➕ As a number, 52,240 = 2 × 2 × 2 × 2 × 5 × 653. Its digits add up to 13, a total 1,179 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100110000010000
  • 🏠 Its numerical neighbours: 52237 (Hopkinton, IA, 51 mi away) and 52241 (Coralville, IA, 7 mi away).
  • 🔄 Backwards, 52240 becomes 04225 — and that is a real ZIP code: Dryden, ME, 1,089 miles away.
  • 👥 34 other ZIP codes are made of exactly the same digits (02452, 02542, 04225, 04252, 20245, 20254, …). The farthest-flung twin is 04252 in Lisbon Falls, ME, 1,096 miles away.
  • 🧭 Farther north than 72% of all ZIP codes, and farther west than 60%.
  • 🎯391 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 52240 and you would come out at 41.63°S, 88.50°E — 1,030 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 142.1 square miles of land, 52240 is bigger than 85% of ZIP codes — room for about 108 Central Parks.
🌙 The sky over 52240 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population35,074This ZIP35,074
Households15,417This ZIP15,417
Housing units17,148This ZIP17,148
Median age28.6This ZIP28.6Iowa38.6US 38.9
Median household income$52,960This ZIP$52,960Iowa$75,059US $80,734
Median home value$242,300This ZIP$242,300Iowa$208,000US $332,700
Median gross rent$1,047This ZIP$1,047Iowa$972US $1,413
Bachelor's degree or higher47.6%This ZIP47.6%
Mean commute17.4 minThis ZIP17.4 min
Population density246.8 / sq miThis ZIP246.8 / sq mi

Business and tax activity

Business establishments1,021This ZIP1,021
Employees15,225This ZIP15,225
Annual payroll$646,395,000This ZIP$646,395,000
Tax returns filed14,110This ZIP14,110
Total adjusted gross income$1,183,547,000This ZIP$1,183,547,000

Land area

Land area142.11 sq miThis ZIP142.11 sq mi
Water area1.12 sq miThis ZIP1.12 sq mi

Other place names in 52240

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

ZIP codes near 52240

ZIPCityDistance
52243 Iowa City, IA 2.7 mi
52245 Iowa City, IA 3.0 mi
52242 Iowa City, IA 3.2 mi
52235 Hills, IA 4.0 mi
52246 Iowa City, IA 5.2 mi
52241 Coralville, IA 6.9 mi
52244 Iowa City, IA 9.3 mi
52358 West Branch, IA 10.2 mi
52340 Tiffin, IA 10.5 mi
52755 Lone Tree, IA 11.0 mi

Find every ZIP code within 10 miles of 52240 →

Questions about this ZIP code

Where is ZIP code 52240?

52240 is in Iowa City, Iowa, in Johnson County, part of the Iowa City, IA metropolitan area. Its published point location is 41.6308, -91.4988.

What county is 52240 in?

52240 lies in Johnson County.

What area code is 52240?

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

What time zone is 52240 in?

52240 uses America/Chicago.

How many people live in 52240?

About 35,074 people live in ZIP code 52240, in 15,417 households, at 246.8 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 52240?

$52,960 a year, against $75,059 across Iowa.

What ZIP codes are near 52240?

The closest are 52243 (2.7 mi), 52245 (3 mi), 52242 (3.2 mi), 52235 (4 mi) and 52246 (5.2 mi).

Is 52240 a PO Box ZIP code?

52240 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “52240 ZIP Code — Iowa City, Iowa (Johnson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/52240

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