60543
ZIP 60543 is Oswego, Illinois, mostly in Kendall County; area codes 331 and 630; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Kendall +2 more
- Metro area
- Chicago-Naperville-Elgin, IL-IN
- Population
- 43,047
- Coordinates
- 41.6683, -88.3229
Weather right now
Asking the National Weather Service…
Where 60543 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 60543 into a pocket calculator and turn it upside down: EhSOg — not quite a word, sorry.
- ➕ As a number, 60,543 = 3 × 3 × 7 × 31 × 31. Its digits add up to 18, a total 2,332 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1110110001111111 - 🏠 Its numerical neighbours: 60542 (North Aurora, IL, 10 mi away) and 60544 (Plainfield, IL, 7 mi away).
- 🔄 Backwards, 60543 becomes 34506, which is not a ZIP code at all.
- 👥 65 other ZIP codes are made of exactly the same digits (03456, 03465, 04563, 04635, 04653, 05346, …). The farthest-flung twin is 04653 in Bass Harbor, ME, 1,024 miles away.
- 🧭 Farther north than 72% of all ZIP codes, and farther west than 52%.
- 🎯551 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 60543 and you would come out at 41.67°S, 91.68°E — 1,161 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 12m of daylight. Shortest: 9h 09m.
- 📏 At 41.9 square miles of land, 60543 is bigger than 55% of ZIP codes — room for about 32 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 43,047This ZIP43,047 |
|---|---|
| Households | 14,469This ZIP14,469 |
| Housing units | 14,666This ZIP14,666 |
| Median age | 39.0This ZIP39.0Illinois39.0US 38.9 |
| Median household income | $119,371This ZIP$119,371Illinois$83,390US $80,734 |
| Median home value | $343,800This ZIP$343,800Illinois$263,300US $332,700 |
| Median gross rent | $1,616This ZIP$1,616Illinois$1,274US $1,413 |
| Bachelor's degree or higher | 42.7%This ZIP42.7% |
| Mean commute | 31.0 minThis ZIP31.0 min |
| Population density | 1,026.2 / sq miThis ZIP1,026.2 / sq mi |
Business and tax activity
| Business establishments | 956This ZIP956 |
|---|---|
| Employees | 9,938This ZIP9,938 |
| Annual payroll | $417,477,000This ZIP$417,477,000 |
| Tax returns filed | 19,920This ZIP19,920 |
| Total adjusted gross income | $1,892,353,000This ZIP$1,892,353,000 |
Land area
| Land area | 41.95 sq miThis ZIP41.95 sq mi |
|---|---|
| Water area | 0.48 sq miThis ZIP0.48 sq mi |
Counties 60543 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Kendall County | 99.2% |
| Will County | 0.6% |
| Kane County | 0.2% |
Other place names in 60543
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 60543
| ZIP | City | Distance |
|---|---|---|
60538 | Montgomery, IL | 4.2 mi |
60503 | Aurora, IL | 4.3 mi |
60585 | Plainfield, IL | 5.1 mi |
60507 | Aurora, IL | 6.4 mi |
60568 | Aurora, IL | 6.4 mi |
60572 | Aurora, IL | 6.4 mi |
60512 | Bristol, IL | 6.5 mi |
60544 | Plainfield, IL | 6.6 mi |
60506 | Aurora, IL | 6.8 mi |
60504 | Aurora, IL | 6.8 mi |
Find every ZIP code within 10 miles of 60543 →
Questions about this ZIP code
Where is ZIP code 60543?
60543 is in Oswego, Illinois, in Kendall County, part of the Chicago-Naperville-Elgin, IL-IN metropolitan area. Its published point location is 41.6683, -88.3229.
What county is 60543 in?
60543 spans 3 counties: Kendall County, Will County and Kane County. Most of it falls in Kendall 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 60543?
Oswego uses area codes 331 and 630, from NANPA's telephone records.
What time zone is 60543 in?
60543 uses America/Chicago.
How many people live in 60543?
About 43,047 people live in ZIP code 60543, in 14,469 households, at 1,026.2 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 60543?
$119,371 a year, against $83,390 across Illinois.
What ZIP codes are near 60543?
The closest are 60538 (4.2 mi), 60503 (4.3 mi), 60585 (5.1 mi), 60507 (6.4 mi) and 60568 (6.4 mi).
Is 60543 a PO Box ZIP code?
60543 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “60543 ZIP Code — Oswego, Illinois (Kendall County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/60543
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/60543.json Underlying data is public domain or openly licensed — sources, vintages and licences.