61544
ZIP 61544 is London Mills, Illinois, mostly in Fulton County; area code 309; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Fulton +1 more
- Metro area
- Canton, IL
- Population
- 784
- Coordinates
- 40.7007, -90.2341
Weather right now
Asking the National Weather Service…
Where 61544 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.
- 🔢 Type 61544 into a pocket calculator and turn it upside down: hhSIg — not quite a word, sorry.
- ➕ As a number, 61,544 = 2 × 2 × 2 × 7 × 7 × 157. Its digits add up to 20, a total 2,586 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1111000001101000 - 🏠 Its numerical neighbours: 61543 (Liverpool, IL, 24 mi away) and 61545 (Lowpoint, IL, 48 mi away).
- 🔄 Backwards, 61544 becomes 44516, which is not a ZIP code at all.
- 👥 29 other ZIP codes are made of exactly the same digits (14456, 14546, 14564, 15446, 15464, 15644, …). The farthest-flung twin is 14456 in Geneva, NY, 697 miles away.
- 🧭 Farther north than 63% of all ZIP codes, and farther west than 57%.
- 🎯444 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 61544 and you would come out at 40.70°S, 89.77°E — 1,121 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 06m of daylight. Shortest: 9h 15m.
- 📏 At 39.7 square miles of land, 61544 is bigger than 53% of ZIP codes — room for about 30 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 784This ZIP784 |
|---|---|
| Households | 260This ZIP260 |
| Housing units | 330This ZIP330 |
| Median age | 36.3This ZIP36.3Illinois39.0US 38.9 |
| Median household income | $81,250This ZIP$81,250Illinois$83,390US $80,734 |
| Median home value | $95,900This ZIP$95,900Illinois$263,300US $332,700 |
| Median gross rent | $850This ZIP$850Illinois$1,274US $1,413 |
| Bachelor's degree or higher | 17.6%This ZIP17.6% |
| Mean commute | 33.3 minThis ZIP33.3 min |
| Population density | 19.7 / sq miThis ZIP19.7 / sq mi |
Business and tax activity
| Business establishments | 10This ZIP10 |
|---|---|
| Employees | 21This ZIP21 |
| Annual payroll | $1,126,000This ZIP$1,126,000 |
| Tax returns filed | 330This ZIP330 |
| Total adjusted gross income | $19,002,000This ZIP$19,002,000 |
Land area
| Land area | 39.74 sq miThis ZIP39.74 sq mi |
|---|---|
| Water area | 0.07 sq miThis ZIP0.07 sq mi |
Counties 61544 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Fulton County | 70.4% |
| Knox County | 29.6% |
Other place names in 61544
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 61544
| ZIP | City | Distance |
|---|---|---|
61432 | Fairview, IL | 5.6 mi |
61458 | Maquon, IL | 6.2 mi |
61431 | Ellisville, IL | 7.5 mi |
61474 | Saint Augustine, IL | 8.9 mi |
61415 | Avon, IL | 10.3 mi |
61531 | Farmington, IL | 10.4 mi |
61433 | Fiatt, IL | 10.7 mi |
61436 | Gilson, IL | 11.0 mi |
61410 | Abingdon, IL | 11.8 mi |
61572 | Yates City, IL | 12.2 mi |
Find every ZIP code within 10 miles of 61544 →
Questions about this ZIP code
Where is ZIP code 61544?
61544 is in London Mills, Illinois, in Fulton County, part of the Canton, IL micropolitan area. Its published point location is 40.7007, -90.2341.
What county is 61544 in?
61544 spans 2 counties: Fulton County and Knox County. Most of it falls in Fulton 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 61544?
London Mills uses area code 309, from NANPA's telephone records.
What time zone is 61544 in?
61544 uses America/Chicago.
How many people live in 61544?
About 784 people live in ZIP code 61544, in 260 households, at 19.7 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 61544?
$81,250 a year, against $83,390 across Illinois.
What ZIP codes are near 61544?
The closest are 61432 (5.6 mi), 61458 (6.2 mi), 61431 (7.5 mi), 61474 (8.9 mi) and 61415 (10.3 mi).
Is 61544 a PO Box ZIP code?
61544 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “61544 ZIP Code — London Mills, Illinois (Fulton County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61544
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/61544.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.