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/61371

61371

ZIP 61371 is Triumph, Illinois, in LaSalle County; area codes 815 and 779; Central time.

Type
Standard
Time zone
America/Chicago
County
LaSalle
Metro area
Ottawa, IL
Population
83
Coordinates
41.4993, -89.0199
☼ Live from 61371 — Triumph, IL

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 61371 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 61371
  • 🔢 Type 61371 into a pocket calculator and turn it upside down: ILEIg — not quite a word, sorry.
  • ➕ As a number, 61,371 = 3 × 3 × 3 × 2273. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1110111110111011
  • 🏠 Its numerical neighbours: 61370 (Tonica, IL, 20 mi away) and 61372 (Troy Grove, IL, 4 mi away).
  • 🔄 Backwards, 61371 becomes 17316 — and that is a real ZIP code: East Berlin, PA, 637 miles away.
  • 👥 31 other ZIP codes are made of exactly the same digits (11367, 11763, 13167, 13617, 13671, 13761, …). The farthest-flung twin is 11763 in Medford, NY, 834 miles away.
  • 🧭 Farther north than 71% of all ZIP codes, and farther west than 53%.
  • 🎯514 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 61371 and you would come out at 41.50°S, 90.98°E — 1,138 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 11m of daylight. Shortest: 9h 10m.
  • 📏 At 0.149 square miles of land, 61371 is bigger than 2% of ZIP codes — about 72 football fields.
🌙 The sky over 61371 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population83This ZIP83
Households37This ZIP37
Housing units37This ZIP37
Median age50.7This ZIP50.7Illinois39.0US 38.9
Median home value$108,600This ZIP$108,600Illinois$263,300US $332,700
Bachelor's degree or higher0.0%
Population density557.0 / sq miThis ZIP557.0 / sq mi

Land area

Land area0.15 sq miThis ZIP0.15 sq mi
Water area0.00 sq mi

Other place names in 61371

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

ZIP codes near 61371

ZIPCityDistance
61372 Troy Grove, IL 4.0 mi
61342 Mendota, IL 4.5 mi
61373 Utica, IL 6.5 mi
61301 La Salle, IL 7.8 mi
60518 Earlville, IL 8.6 mi
61317 Cherry, IL 10.8 mi
61312 Arlington, IL 11.6 mi
61350 Ottawa, IL 11.9 mi
61320 Dalzell, IL 12.6 mi
61329 Ladd, IL 12.9 mi

Find every ZIP code within 10 miles of 61371 →

Questions about this ZIP code

Where is ZIP code 61371?

61371 is in Triumph, Illinois, in LaSalle County, part of the Ottawa, IL micropolitan area. Its published point location is 41.4993, -89.0199.

What county is 61371 in?

61371 lies in LaSalle County.

What area code is 61371?

Triumph uses area codes 815 and 779, from NANPA's telephone records.

What time zone is 61371 in?

61371 uses America/Chicago.

How many people live in 61371?

About 83 people live in ZIP code 61371, in 37 households, at 557.0 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 61371?

The closest are 61372 (4 mi), 61342 (4.5 mi), 61373 (6.5 mi), 61301 (7.8 mi) and 60518 (8.6 mi).

Is 61371 a PO Box ZIP code?

61371 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “61371 ZIP Code — Triumph, Illinois (LaSalle County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61371

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/61371.json

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