61115
ZIP 61115 is Machesney Park, Illinois, in Winnebago County; area codes 815 and 779; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Winnebago
- Metro area
- Rockford, IL
- Population
- 22,364
- Coordinates
- 42.3626, -89.0242
Weather right now
Asking the National Weather Service…
Where 61115 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 61115 into a pocket calculator and turn it upside down: SIIIg — not quite a word, sorry.
- ➕ As a number, 61,115 = 5 × 17 × 719. Its digits add up to 14, a total 1,416 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1110111010111011 - 🏠 Its numerical neighbours: 61114 (Rockford, IL, 4 mi away) and 61125 (Rockford, IL, 8 mi away).
- 🔄 Backwards, 61115 becomes 51116, which is not a ZIP code at all.
- 👥 9 other ZIP codes are made of exactly the same digits (11516, 11561, 15116, 15611, 16115, 16151, …). The farthest-flung twin is 11561 in Long Beach, NY, 804 miles away.
- 🧭 Farther north than 78% of all ZIP codes, and farther west than 53%.
- 🎯527 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 61115 and you would come out at 42.36°S, 90.98°E — 1,104 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 17m of daylight. Shortest: 9h 04m.
- 📏 At 10.6 square miles of land, 61115 is bigger than 28% of ZIP codes — room for about 8.1 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 22,364This ZIP22,364 |
|---|---|
| Households | 8,463This ZIP8,463 |
| Housing units | 9,004This ZIP9,004 |
| Median age | 40.2This ZIP40.2Illinois39.0US 38.9 |
| Median household income | $75,363This ZIP$75,363Illinois$83,390US $80,734 |
| Median home value | $172,600This ZIP$172,600Illinois$263,300US $332,700 |
| Median gross rent | $1,104This ZIP$1,104Illinois$1,274US $1,413 |
| Bachelor's degree or higher | 19.3%This ZIP19.3% |
| Mean commute | 21.7 minThis ZIP21.7 min |
| Population density | 2,100.1 / sq miThis ZIP2,100.1 / sq mi |
Business and tax activity
| Business establishments | 449This ZIP449 |
|---|---|
| Employees | 7,533This ZIP7,533 |
| Annual payroll | $349,465,000This ZIP$349,465,000 |
| Tax returns filed | 11,120This ZIP11,120 |
| Total adjusted gross income | $659,004,000This ZIP$659,004,000 |
Land area
| Land area | 10.65 sq miThis ZIP10.65 sq mi |
|---|---|
| Water area | 0.21 sq miThis ZIP0.21 sq mi |
Other place names in 61115
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 61115
| ZIP | City | Distance |
|---|---|---|
61111 | Loves Park, IL | 2.2 mi |
61103 | Rockford, IL | 3.6 mi |
61114 | Rockford, IL | 4.2 mi |
61073 | Roscoe, IL | 4.5 mi |
61107 | Rockford, IL | 5.5 mi |
61101 | Rockford, IL | 6.3 mi |
61011 | Caledonia, IL | 6.8 mi |
61105 | Rockford, IL | 7.3 mi |
61108 | Rockford, IL | 7.5 mi |
61106 | Rockford, IL | 7.9 mi |
Find every ZIP code within 10 miles of 61115 →
Questions about this ZIP code
Where is ZIP code 61115?
61115 is in Machesney Park, Illinois, in Winnebago County, part of the Rockford, IL metropolitan area. Its published point location is 42.3626, -89.0242.
What county is 61115 in?
61115 lies in Winnebago County.
What area code is 61115?
Machesney Park uses area codes 815 and 779, from NANPA's telephone records.
What time zone is 61115 in?
61115 uses America/Chicago.
How many people live in 61115?
About 22,364 people live in ZIP code 61115, in 8,463 households, at 2,100.1 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 61115?
$75,363 a year, against $83,390 across Illinois.
What ZIP codes are near 61115?
The closest are 61111 (2.2 mi), 61103 (3.6 mi), 61114 (4.2 mi), 61073 (4.5 mi) and 61107 (5.5 mi).
Is 61115 a PO Box ZIP code?
61115 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “61115 ZIP Code — Machesney Park, Illinois (Winnebago County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61115
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/61115.json Underlying data is public domain or openly licensed — sources, vintages and licences.