61070
ZIP 61070 is Rock City, Illinois, in Stephenson County; area codes 815 and 779; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Stephenson
- Metro area
- Freeport, IL
- Population
- 1,322
- Coordinates
- 42.4157, -89.4717
Weather right now
Asking the National Weather Service…
Where 61070 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 61070 into a pocket calculator and turn it upside down: OLOIg — not quite a word, sorry.
- ➕ As a number, 61,070 = 2 × 5 × 31 × 197. Its digits add up to 14, a total 1,416 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1110111010001110 - 🏠 Its numerical neighbours: 61068 (Rochelle, IL, 38 mi away) and 61071 (Rock Falls, IL, 49 mi away).
- 🔄 Backwards, 61070 becomes 07016 — and that is a real ZIP code: Cranford, NJ, 793 miles away.
- 👥 29 other ZIP codes are made of exactly the same digits (00617, 00716, 01607, 01760, 06071, 06107, …). The farthest-flung twin is 00716 in Ponce, PR, 2,156 miles away.
- 🧭 Farther north than 78% of all ZIP codes, and farther west than 54%.
- 🎯506 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 61070 and you would come out at 42.42°S, 90.53°E — 1,083 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 32.4 square miles of land, 61070 is bigger than 48% of ZIP codes — room for about 25 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 1,322This ZIP1,322 |
|---|---|
| Households | 488This ZIP488 |
| Housing units | 588This ZIP588 |
| Median age | 52.0This ZIP52.0Illinois39.0US 38.9 |
| Median household income | $84,167This ZIP$84,167Illinois$83,390US $80,734 |
| Median home value | $157,000This ZIP$157,000Illinois$263,300US $332,700 |
| Median gross rent | $642This ZIP$642Illinois$1,274US $1,413 |
| Bachelor's degree or higher | 26.3%This ZIP26.3% |
| Mean commute | 27.9 minThis ZIP27.9 min |
| Population density | 40.8 / sq miThis ZIP40.8 / sq mi |
Business and tax activity
| Business establishments | 19This ZIP19 |
|---|---|
| Employees | 69This ZIP69 |
| Annual payroll | $4,478,000This ZIP$4,478,000 |
| Tax returns filed | 540This ZIP540 |
| Total adjusted gross income | $41,522,000This ZIP$41,522,000 |
Land area
| Land area | 32.37 sq miThis ZIP32.37 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Other place names in 61070
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 61070
| ZIP | City | Distance |
|---|---|---|
61019 | Davis, IL | 3.5 mi |
61018 | Dakota, IL | 4.3 mi |
61067 | Ridott, IL | 7.6 mi |
61060 | Orangeville, IL | 8.6 mi |
61013 | Cedarville, IL | 8.9 mi |
61024 | Durand, IL | 9.0 mi |
61063 | Pecatonica, IL | 9.4 mi |
53550 | Juda, WI | 9.5 mi |
61032 | Freeport, IL | 10.8 mi |
61079 | Shirland, IL | 13.3 mi |
Find every ZIP code within 10 miles of 61070 →
Questions about this ZIP code
Where is ZIP code 61070?
61070 is in Rock City, Illinois, in Stephenson County, part of the Freeport, IL micropolitan area. Its published point location is 42.4157, -89.4717.
What county is 61070 in?
61070 lies in Stephenson County.
What area code is 61070?
Rock City uses area codes 815 and 779, from NANPA's telephone records.
What time zone is 61070 in?
61070 uses America/Chicago.
How many people live in 61070?
About 1,322 people live in ZIP code 61070, in 488 households, at 40.8 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 61070?
$84,167 a year, against $83,390 across Illinois.
What ZIP codes are near 61070?
The closest are 61019 (3.5 mi), 61018 (4.3 mi), 61067 (7.6 mi), 61060 (8.6 mi) and 61013 (8.9 mi).
Is 61070 a PO Box ZIP code?
61070 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “61070 ZIP Code — Rock City, Illinois (Stephenson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61070
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/61070.json Underlying data is public domain or openly licensed — sources, vintages and licences.