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/51501

51501

ZIP 51501 is in Council Bluffs, Iowa, in Pottawattamie County; area code 712; Central time. Council Bluffs has 3 ZIP codes; the others are 51502 and 51503.

Type
Standard
Time zone
America/Chicago
County
Pottawattamie
Metro area
Omaha, NE-IA
Population
34,618
Coordinates
41.2273, -95.8784
☼ Live from 51501 — Council Bluffs, IA

Weather right now

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Local time: —

Where 51501 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 51501
  • 🔢 Type 51501 into a pocket calculator and turn it upside down: IOSIS — not quite a word, sorry.
  • ➕ As a number, 51,501 = 3 × 17167. Its digits add up to 12, a total 940 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100100100101101
  • 🏠 Its numerical neighbours: 51467 (Westside, IA, 71 mi away) and 51502 (Council Bluffs, IA, 3 mi away).
  • 🔄 Backwards, 51501 becomes 10515, which is not a ZIP code at all.
  • 👥 20 other ZIP codes are made of exactly the same digits (01515, 05151, 10155, 10551, 11055, 11550, …). The farthest-flung twin is 01515 in East Brookfield, MA, 1,227 miles away.
  • 🧭 Farther north than 69% of all ZIP codes, and farther west than 71%.
  • 🎯172 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 51501 and you would come out at 41.23°S, 84.12°E — 876 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 09m of daylight. Shortest: 9h 12m.
  • 📏 At 23.9 square miles of land, 51501 is bigger than 41% of ZIP codes — room for about 18 Central Parks.
🌙 The sky over 51501 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population34,618This ZIP34,618
Households14,271This ZIP14,271
Housing units15,053This ZIP15,053
Median age38.0This ZIP38.0Iowa38.6US 38.9
Median household income$59,843This ZIP$59,843Iowa$75,059US $80,734
Median home value$152,400This ZIP$152,400Iowa$208,000US $332,700
Median gross rent$1,059This ZIP$1,059Iowa$972US $1,413
Bachelor's degree or higher16.0%This ZIP16.0%
Mean commute17.6 minThis ZIP17.6 min
Population density1,445.5 / sq miThis ZIP1,445.5 / sq mi

Business and tax activity

Business establishments744This ZIP744
Employees17,652This ZIP17,652
Annual payroll$893,053,000This ZIP$893,053,000
Tax returns filed15,310This ZIP15,310
Total adjusted gross income$803,536,000This ZIP$803,536,000

Land area

Land area23.95 sq miThis ZIP23.95 sq mi
Water area2.40 sq miThis ZIP2.40 sq mi

Other place names in 51501

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

ZIP codes near 51501

ZIPCityDistance
51502 Council Bluffs, IA 2.6 mi
68108 Omaha, NE 2.8 mi
68102 Omaha, NE 3.7 mi
68101 Omaha, NE 3.8 mi
68103 Omaha, NE 3.8 mi
68109 Omaha, NE 3.8 mi
68119 Omaha, NE 3.8 mi
68120 Omaha, NE 3.8 mi
68139 Omaha, NE 3.8 mi
68145 Omaha, NE 3.8 mi

Find every ZIP code within 10 miles of 51501 →

Questions about this ZIP code

Where is ZIP code 51501?

51501 is in Council Bluffs, Iowa, in Pottawattamie County, part of the Omaha, NE-IA metropolitan area. Its published point location is 41.2273, -95.8784.

What county is 51501 in?

51501 lies in Pottawattamie County.

What area code is 51501?

Council Bluffs uses area code 712, from NANPA's telephone records.

What time zone is 51501 in?

51501 uses America/Chicago.

How many people live in 51501?

About 34,618 people live in ZIP code 51501, in 14,271 households, at 1,445.5 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 51501?

$59,843 a year, against $75,059 across Iowa.

What ZIP codes are near 51501?

The closest are 51502 (2.6 mi), 68108 (2.8 mi), 68102 (3.7 mi), 68101 (3.8 mi) and 68103 (3.8 mi).

Is 51501 a PO Box ZIP code?

51501 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “51501 ZIP Code — Council Bluffs, Iowa (Pottawattamie County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/51501

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