61523
ZIP 61523 is Chillicothe, Illinois, mostly in Peoria County; area code 309; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Peoria +1 more
- Metro area
- Peoria, IL
- Population
- 10,203
- Coordinates
- 40.9120, -89.5378
Weather right now
Asking the National Weather Service…
Where 61523 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 61523 into a pocket calculator and turn it upside down: EZSIg — not quite a word, sorry.
- ➕ As a number, 61,523 = 7 × 11 × 17 × 47. Its digits add up to 17, a total 2,133 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1111000001010011 - 🏠 Its numerical neighbours: 61520 (Canton, IL, 36 mi away) and 61524 (Dunfermline, IL, 39 mi away).
- 🔄 Backwards, 61523 becomes 32516 — and that is a real ZIP code: Pensacola, FL, 736 miles away.
- 👥 55 other ZIP codes are made of exactly the same digits (12563, 13625, 13652, 15236, 15362, 15623, …). The farthest-flung twin is 32615 in Alachua, FL, 863 miles away.
- 🧭 Farther north than 66% of all ZIP codes, and farther west than 55%.
- 🎯482 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 61523 and you would come out at 40.91°S, 90.46°E — 1,141 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 07m of daylight. Shortest: 9h 14m.
- 📏 At 53.3 square miles of land, 61523 is bigger than 61% of ZIP codes — room for about 40 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 10,203This ZIP10,203 |
|---|---|
| Households | 4,635This ZIP4,635 |
| Housing units | 5,062This ZIP5,062 |
| Median age | 45.4This ZIP45.4Illinois39.0US 38.9 |
| Median household income | $79,453This ZIP$79,453Illinois$83,390US $80,734 |
| Median home value | $161,700This ZIP$161,700Illinois$263,300US $332,700 |
| Median gross rent | $917This ZIP$917Illinois$1,274US $1,413 |
| Bachelor's degree or higher | 27.6%This ZIP27.6% |
| Mean commute | 21.8 minThis ZIP21.8 min |
| Population density | 191.5 / sq miThis ZIP191.5 / sq mi |
Business and tax activity
| Business establishments | 156This ZIP156 |
|---|---|
| Employees | 1,640This ZIP1,640 |
| Annual payroll | $68,676,000This ZIP$68,676,000 |
| Tax returns filed | 5,340This ZIP5,340 |
| Total adjusted gross income | $410,839,000This ZIP$410,839,000 |
Land area
| Land area | 53.27 sq miThis ZIP53.27 sq mi |
|---|---|
| Water area | 2.87 sq miThis ZIP2.87 sq mi |
Counties 61523 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Peoria County | 93.6% |
| Marshall County | 6.4% |
Other place names in 61523
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 61523
| ZIP | City | Distance |
|---|---|---|
61652 | Peoria, IL | 2.9 mi |
61562 | Rome, IL | 2.9 mi |
61526 | Edelstein, IL | 4.4 mi |
61552 | Mossville, IL | 6.4 mi |
61479 | Speer, IL | 8.2 mi |
61525 | Dunlap, IL | 8.2 mi |
61638 | Peoria, IL | 8.8 mi |
61565 | Sparland, IL | 8.9 mi |
61548 | Metamora, IL | 9.1 mi |
61545 | Lowpoint, IL | 10.1 mi |
Find every ZIP code within 10 miles of 61523 →
Questions about this ZIP code
Where is ZIP code 61523?
61523 is in Chillicothe, Illinois, in Peoria County, part of the Peoria, IL metropolitan area. Its published point location is 40.9120, -89.5378.
What county is 61523 in?
61523 spans 2 counties: Peoria County and Marshall County. Most of it falls in Peoria 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 61523?
Chillicothe uses area code 309, from NANPA's telephone records.
What time zone is 61523 in?
61523 uses America/Chicago.
How many people live in 61523?
About 10,203 people live in ZIP code 61523, in 4,635 households, at 191.5 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 61523?
$79,453 a year, against $83,390 across Illinois.
What ZIP codes are near 61523?
The closest are 61652 (2.9 mi), 61562 (2.9 mi), 61526 (4.4 mi), 61552 (6.4 mi) and 61479 (8.2 mi).
Is 61523 a PO Box ZIP code?
61523 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “61523 ZIP Code — Chillicothe, Illinois (Peoria County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61523
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/61523.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.