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/54603

54603

ZIP 54603 is in La Crosse, Wisconsin, in La Crosse County; area code 608; Central time. La Crosse has 3 ZIP codes; the others are 54601 and 54602.

Type
Standard
Time zone
America/Chicago
County
La Crosse
Population
13,738
Coordinates
43.8577, -91.2518
☼ Live from 54603 — La Crosse, WI

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 54603 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 54603
  • 🔢 Type 54603 into a pocket calculator and turn it upside down: EOghS — not quite a word, sorry.
  • ➕ As a number, 54,603 = 3 × 3 × 6067. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1101010101001011
  • 🏠 Its numerical neighbours: 54602 (La Crosse, WI, 5 mi away) and 54610 (Alma, WI, 45 mi away).
  • 🔄 Backwards, 54603 becomes 30645 — and that is a real ZIP code: High Shoals, GA, 809 miles away.
  • 👥 65 other ZIP codes are made of exactly the same digits (03456, 03465, 04563, 04635, 04653, 05346, …). The farthest-flung twin is 34605 in Brooksville, FL, 1,168 miles away.
  • 🧭 Farther north than 87% of all ZIP codes, and farther west than 59%.
  • 🎯468 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 54603 and you would come out at 43.86°S, 88.75°E — 955 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 28m of daylight. Shortest: 8h 54m.
  • 📏 At 8.9 square miles of land, 54603 is bigger than 26% of ZIP codes — room for about 6.7 Central Parks.
🌙 The sky over 54603 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population13,738This ZIP13,738
Households6,799This ZIP6,799
Housing units7,246This ZIP7,246
Median age38.6This ZIP38.6Wisconsin40.2US 38.9
Median household income$52,012This ZIP$52,012Wisconsin$77,485US $80,734
Median home value$181,900This ZIP$181,900Wisconsin$266,500US $332,700
Median gross rent$966This ZIP$966Wisconsin$1,087US $1,413
Bachelor's degree or higher22.2%This ZIP22.2%
Mean commute16.3 minThis ZIP16.3 min
Population density1,550.4 / sq miThis ZIP1,550.4 / sq mi

Business and tax activity

Business establishments492This ZIP492
Employees13,406This ZIP13,406
Annual payroll$754,741,000This ZIP$754,741,000
Tax returns filed7,240This ZIP7,240
Total adjusted gross income$468,975,000This ZIP$468,975,000

Land area

Land area8.86 sq miThis ZIP8.86 sq mi
Water area0.95 sq miThis ZIP0.95 sq mi

Other place names in 54603

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

ZIP codes near 54603

ZIPCityDistance
54650 Onalaska, WI 3.8 mi
54602 La Crosse, WI 5.4 mi
55947 La Crescent, MN 6.2 mi
54601 La Crosse, WI 6.6 mi
54669 West Salem, WI 9.1 mi
54636 Holmen, WI 10.1 mi
55941 Hokah, MN 10.4 mi
55925 Dakota, MN 11.0 mi
54658 Stoddard, WI 12.5 mi
54623 Coon Valley, WI 14.3 mi

Find every ZIP code within 10 miles of 54603 →

Questions about this ZIP code

Where is ZIP code 54603?

54603 is in La Crosse, Wisconsin, in La Crosse County, part of the La Crosse-Onalaska, WI-MN metropolitan area. Its published point location is 43.8577, -91.2518.

What county is 54603 in?

54603 lies in La Crosse County.

What area code is 54603?

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

What time zone is 54603 in?

54603 uses America/Chicago.

How many people live in 54603?

About 13,738 people live in ZIP code 54603, in 6,799 households, at 1,550.4 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 54603?

$52,012 a year, against $77,485 across Wisconsin.

What ZIP codes are near 54603?

The closest are 54650 (3.8 mi), 54602 (5.4 mi), 55947 (6.2 mi), 54601 (6.6 mi) and 54669 (9.1 mi).

Is 54603 a PO Box ZIP code?

54603 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “54603 ZIP Code — La Crosse, Wisconsin (La Crosse County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/54603

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/54603.json

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