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/53901

53901

ZIP 53901 is Portage, Wisconsin, mostly in Columbia County; area code 608; Central time.

Type
Standard
Time zone
America/Chicago
County
Columbia +1 more
Metro area
Madison, WI
Population
14,291
Coordinates
43.5609, -89.4831
☼ Live from 53901 — Portage, WI

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 53901 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 53901
  • 🔢 Type 53901 into a pocket calculator and turn it upside down: IOGES — not quite a word, sorry.
  • ➕ As a number, 53,901 = 3 × 3 × 53 × 113. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1101001010001101
  • 🏠 Its numerical neighbours: 53827 (Woodman, WI, 76 mi away) and 53910 (Adams, WI, 28 mi away).
  • 🔄 Backwards, 53901 becomes 10935, which is not a ZIP code at all.
  • 👥 46 other ZIP codes are made of exactly the same digits (09351, 10953, 13905, 15930, 19035, 19053, …). The farthest-flung twin is 09351 in APO AE, a military post office, 4,372 miles away.
  • 🧭 Farther north than 86% of all ZIP codes, and farther west than 54%.
  • 🎯535 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 53901 and you would come out at 43.56°S, 90.52°E — 1,042 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 26m of daylight. Shortest: 8h 56m.
  • 📏 At 147.3 square miles of land, 53901 is bigger than 86% of ZIP codes — room for about 112 Central Parks.
🌙 The sky over 53901 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population14,291This ZIP14,291
Households5,799This ZIP5,799
Housing units6,516This ZIP6,516
Median age41.7This ZIP41.7Wisconsin40.2US 38.9
Median household income$74,092This ZIP$74,092Wisconsin$77,485US $80,734
Median home value$227,700This ZIP$227,700Wisconsin$266,500US $332,700
Median gross rent$1,012This ZIP$1,012Wisconsin$1,087US $1,413
Bachelor's degree or higher21.6%This ZIP21.6%
Mean commute23.6 minThis ZIP23.6 min
Population density97.0 / sq miThis ZIP97.0 / sq mi

Business and tax activity

Business establishments427This ZIP427
Employees6,878This ZIP6,878
Annual payroll$323,473,000This ZIP$323,473,000
Tax returns filed7,120This ZIP7,120
Total adjusted gross income$500,616,000This ZIP$500,616,000

Land area

Land area147.29 sq miThis ZIP147.29 sq mi
Water area11.46 sq miThis ZIP11.46 sq mi

Counties 53901 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Columbia County 98.7%
Marquette County 1.3%

Other place names in 53901

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

ZIP codes near 53901

ZIPCityDistance
53954 Pardeeville, WI 8.5 mi
53930 Endeavor, WI 8.6 mi
53920 Briggsville, WI 9.7 mi
53969 Wyocena, WI 10.2 mi
53955 Poynette, WI 11.9 mi
53913 Baraboo, WI 13.2 mi
53561 Merrimac, WI 14.0 mi
53953 Packwaukee, WI 14.2 mi
53926 Dalton, WI 14.9 mi
53965 Wisconsin Dells, WI 15.3 mi

Find every ZIP code within 10 miles of 53901 →

Questions about this ZIP code

Where is ZIP code 53901?

53901 is in Portage, Wisconsin, in Columbia County, part of the Madison, WI metropolitan area. Its published point location is 43.5609, -89.4831.

What county is 53901 in?

53901 spans 2 counties: Columbia County and Marquette County. Most of it falls in Columbia County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What area code is 53901?

Portage uses area code 608, from NANPA's telephone records.

What time zone is 53901 in?

53901 uses America/Chicago.

How many people live in 53901?

About 14,291 people live in ZIP code 53901, in 5,799 households, at 97.0 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 53901?

$74,092 a year, against $77,485 across Wisconsin.

What ZIP codes are near 53901?

The closest are 53954 (8.5 mi), 53930 (8.6 mi), 53920 (9.7 mi), 53969 (10.2 mi) and 53955 (11.9 mi).

Is 53901 a PO Box ZIP code?

53901 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “53901 ZIP Code — Portage, Wisconsin (Columbia County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/53901

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/53901.json

Underlying data is public domain or openly licensed — sources, vintages and licences.