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Where 61057 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 61057 into a pocket calculator and turn it upside down: LSOIg — not quite a word, sorry.
- ➕ 61057 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 19, a total 2,454 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1110111010000001 - 🏠 Its numerical neighbours: 61054 (Mount Morris, IL, 16 mi away) and 61059 (Nora, IL, 52 mi away).
- 🔄 Backwards, 61057 becomes 75016 — and that is a real ZIP code: Irving, TX, 744 miles away.
- 👥 61 other ZIP codes are made of exactly the same digits (01756, 05671, 05761, 06517, 06751, 10567, …). The farthest-flung twin is 01756 in Mendon, MA, 915 miles away.
- 🧭 Farther north than 74% of all ZIP codes, and farther west than 54%.
- 🎯500 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 61057 and you would come out at 41.83°S, 90.62°E — 1,110 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 13m of daylight. Shortest: 9h 08m.
- 📏 At 0.644 square miles of land, 61057 is bigger than 6% of ZIP codes — about 312 football fields.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 30This ZIP30 |
|---|---|
| Households | 8This ZIP8 |
| Housing units | 38This ZIP38 |
| Median age | 17.8This ZIP17.8Illinois39.0US 38.9 |
| Bachelor's degree or higher | 11.1%This ZIP11.1% |
| Population density | 46.6 / sq miThis ZIP46.6 / sq mi |
Land area
| Land area | 0.64 sq miThis ZIP0.64 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Other place names in 61057
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 61057
| ZIP | City | Distance |
|---|---|---|
61031 | Franklin Grove, IL | 3.2 mi |
61324 | Eldena, IL | 4.7 mi |
61021 | Dixon, IL | 4.8 mi |
61331 | Lee Center, IL | 8.1 mi |
61310 | Amboy, IL | 9.2 mi |
61006 | Ashton, IL | 9.6 mi |
61091 | Woosung, IL | 10.1 mi |
61061 | Oregon, IL | 11.6 mi |
61042 | Harmon, IL | 13.2 mi |
61378 | West Brooklyn, IL | 14.0 mi |
Find every ZIP code within 10 miles of 61057 →
Questions about this ZIP code
Where is ZIP code 61057?
61057 is in Nachusa, Illinois, in Lee County, part of the Dixon, IL micropolitan area. Its published point location is 41.8336, -89.3840.
What county is 61057 in?
61057 lies in Lee County.
What area code is 61057?
Nachusa uses area codes 815 and 779, from NANPA's telephone records.
What time zone is 61057 in?
61057 uses America/Chicago.
How many people live in 61057?
About 30 people live in ZIP code 61057, in 8 households, at 46.6 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 61057?
The closest are 61031 (3.2 mi), 61324 (4.7 mi), 61021 (4.8 mi), 61331 (8.1 mi) and 61310 (9.2 mi).
Is 61057 a PO Box ZIP code?
61057 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “61057 ZIP Code — Nachusa, Illinois (Lee County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61057
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/61057.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.