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zipcodes.pro — ZIP/61540

61540

ZIP 61540 is Lacon, Illinois, in Marshall County; area code 309; Central time.

Type
Standard
Time zone
America/Chicago
County
Marshall
Metro area
Peoria, IL
Population
2,753
Coordinates
41.0146, -89.3666
☼ Live from 61540 — Lacon, IL

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Where 61540 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 61540
  • 🔢 Type 61540 into a pocket calculator and turn it upside down: OhSIg — not quite a word, sorry.
  • ➕ As a number, 61,540 = 2 × 2 × 5 × 17 × 181. Its digits add up to 16, a total 1,922 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1111000001100100
  • 🏠 Its numerical neighbours: 61539 (Kingston Mines, IL, 38 mi away) and 61541 (La Rose, IL, 7 mi away).
  • 🔄 Backwards, 61540 becomes 04516, which is not a ZIP code at all.
  • 👥 78 other ZIP codes are made of exactly the same digits (01546, 01564, 05146, 05461, 05641, 06145, …). The farthest-flung twin is 01564 in Sterling, MA, 911 miles away.
  • 🧭 Farther north than 67% of all ZIP codes, and farther west than 54%.
  • 🎯491 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 61540 and you would come out at 41.01°S, 90.63°E — 1,144 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 08m of daylight. Shortest: 9h 13m.
  • 📏 At 52.7 square miles of land, 61540 is bigger than 61% of ZIP codes — room for about 40 Central Parks.
🌙 The sky over 61540 today
  • Working out the sun…
🌋 Shake report
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Source: USGS.

People and housing

Population2,753This ZIP2,753
Households1,222This ZIP1,222
Housing units1,321This ZIP1,321
Median age46.8This ZIP46.8Illinois39.0US 38.9
Median household income$78,824This ZIP$78,824Illinois$83,390US $80,734
Median home value$154,400This ZIP$154,400Illinois$263,300US $332,700
Median gross rent$795This ZIP$795Illinois$1,274US $1,413
Bachelor's degree or higher17.2%This ZIP17.2%
Mean commute30.9 minThis ZIP30.9 min
Population density52.3 / sq miThis ZIP52.3 / sq mi

Business and tax activity

Business establishments72This ZIP72
Employees681This ZIP681
Annual payroll$32,682,000This ZIP$32,682,000
Tax returns filed1,300This ZIP1,300
Total adjusted gross income$86,743,000This ZIP$86,743,000

Land area

Land area52.65 sq miThis ZIP52.65 sq mi
Water area6.36 sq miThis ZIP6.36 sq mi

Other place names in 61540

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

ZIP codes near 61540

ZIPCityDistance
61375 Varna, IL 6.6 mi
61541 La Rose, IL 7.3 mi
61570 Washburn, IL 7.3 mi
61565 Sparland, IL 7.4 mi
61537 Henry, IL 9.1 mi
61545 Lowpoint, IL 10.1 mi
61336 Magnolia, IL 10.5 mi
61369 Toluca, IL 11.3 mi
61523 Chillicothe, IL 11.4 mi
61562 Rome, IL 11.6 mi

Find every ZIP code within 10 miles of 61540 →

Questions about this ZIP code

Where is ZIP code 61540?

61540 is in Lacon, Illinois, in Marshall County, part of the Peoria, IL metropolitan area. Its published point location is 41.0146, -89.3666.

What county is 61540 in?

61540 lies in Marshall County.

What area code is 61540?

Lacon uses area code 309, from NANPA's telephone records.

What time zone is 61540 in?

61540 uses America/Chicago.

How many people live in 61540?

About 2,753 people live in ZIP code 61540, in 1,222 households, at 52.3 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 61540?

$78,824 a year, against $83,390 across Illinois.

What ZIP codes are near 61540?

The closest are 61375 (6.6 mi), 61541 (7.3 mi), 61570 (7.3 mi), 61565 (7.4 mi) and 61537 (9.1 mi).

Is 61540 a PO Box ZIP code?

61540 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “61540 ZIP Code — Lacon, Illinois (Marshall County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61540

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