61051
ZIP 61051 is Milledgeville, Illinois, mostly in Carroll County; area code 815; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Carroll +1 more
- Metro area
- none
- Population
- 1,469
- Coordinates
- 41.9828, -89.7618
Weather right now
Asking the National Weather Service…
Where 61051 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 61051 into a pocket calculator and turn it upside down: ISOIg — not quite a word, sorry.
- ➕ 61051 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 13, a total 1,179 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1110111001111011 - 🏠 Its numerical neighbours: 61050 (Mc Connell, IL, 32 mi away) and 61052 (Monroe Center, IL, 40 mi away).
- 🔄 Backwards, 61051 becomes 15016, which is not a ZIP code at all.
- 👥 39 other ZIP codes are made of exactly the same digits (01516, 01561, 01615, 05161, 06115, 06151, …). The farthest-flung twin is 01561 in South Lancaster, MA, 924 miles away.
- 🧭 Farther north than 75% of all ZIP codes, and farther west than 55%.
- 🎯484 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 61051 and you would come out at 41.98°S, 90.24°E — 1,088 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 14m of daylight. Shortest: 9h 07m.
- 📏 At 50.7 square miles of land, 61051 is bigger than 60% of ZIP codes — room for about 38 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 1,469This ZIP1,469 |
|---|---|
| Households | 656This ZIP656 |
| Housing units | 673This ZIP673 |
| Median age | 39.8This ZIP39.8Illinois39.0US 38.9 |
| Median household income | $59,565This ZIP$59,565Illinois$83,390US $80,734 |
| Median home value | $104,200This ZIP$104,200Illinois$263,300US $332,700 |
| Median gross rent | $550This ZIP$550Illinois$1,274US $1,413 |
| Bachelor's degree or higher | 19.4%This ZIP19.4% |
| Mean commute | 24.4 minThis ZIP24.4 min |
| Population density | 29.0 / sq miThis ZIP29.0 / sq mi |
Business and tax activity
| Business establishments | 48This ZIP48 |
|---|---|
| Employees | 264This ZIP264 |
| Annual payroll | $11,446,000This ZIP$11,446,000 |
| Tax returns filed | 760This ZIP760 |
| Total adjusted gross income | $51,616,000This ZIP$51,616,000 |
Land area
| Land area | 50.68 sq miThis ZIP50.68 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Counties 61051 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Carroll County | 96.1% |
| Ogle County | 3.9% |
Other place names in 61051
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 61051
| ZIP | City | Distance |
|---|---|---|
61014 | Chadwick, IL | 6.4 mi |
61046 | Lanark, IL | 8.8 mi |
61064 | Polo, IL | 9.0 mi |
61081 | Sterling, IL | 9.3 mi |
61091 | Woosung, IL | 11.9 mi |
61078 | Shannon, IL | 12.8 mi |
61030 | Forreston, IL | 12.9 mi |
61037 | Galt, IL | 13.4 mi |
61053 | Mount Carroll, IL | 14.8 mi |
61270 | Morrison, IL | 15.0 mi |
Find every ZIP code within 10 miles of 61051 →
Questions about this ZIP code
Where is ZIP code 61051?
61051 is in Milledgeville, Illinois, in Carroll County. Its published point location is 41.9828, -89.7618.
What county is 61051 in?
61051 spans 2 counties: Carroll County and Ogle County. Most of it falls in Carroll 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 61051?
Milledgeville uses area code 815, from NANPA's telephone records.
What time zone is 61051 in?
61051 uses America/Chicago.
How many people live in 61051?
About 1,469 people live in ZIP code 61051, in 656 households, at 29.0 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 61051?
$59,565 a year, against $83,390 across Illinois.
What ZIP codes are near 61051?
The closest are 61014 (6.4 mi), 61046 (8.8 mi), 61064 (9 mi), 61081 (9.3 mi) and 61091 (11.9 mi).
Is 61051 a PO Box ZIP code?
61051 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “61051 ZIP Code — Milledgeville, Illinois (Carroll County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61051
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/61051.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.