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Where 61402 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 61402 into a pocket calculator and turn it upside down: ZOhIg — not quite a word, sorry.
- ➕ As a number, 61,402 = 2 × 11 × 2791. Its digits add up to 13, a total 1,179 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1110111111011010 - 🏠 Its numerical neighbours: 61401 (Galesburg, IL, 1 mi away) and 61410 (Abingdon, IL, 10 mi away).
- 🔄 Backwards, 61402 becomes 20416 — and that is a real ZIP code: Washington, DC, 723 miles away.
- 👥 66 other ZIP codes are made of exactly the same digits (01264, 01462, 02461, 02641, 04216, 04261, …). The farthest-flung twin is 04612 in Bernard, ME, 1,140 miles away.
- 🧭 Farther north than 66% of all ZIP codes, and farther west than 57%.
- 🎯437 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 61402 and you would come out at 40.94°S, 89.59°E — 1,104 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 07m of daylight. Shortest: 9h 14m.
- 📏 At 0.083 square miles of land, 61402 is bigger than 1% of ZIP codes — about 40 football fields.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 1,623This ZIP1,623 |
|---|---|
| Households | 0 |
| Housing units | 0 |
| Median age | 42.3This ZIP42.3Illinois39.0US 38.9 |
| Bachelor's degree or higher | 0.8%This ZIP0.8% |
| Population density | 19,554.2 / sq miThis ZIP19,554.2 / sq mi |
Business and tax activity
| Business establishments | 20This ZIP20 |
|---|---|
| Employees | 542This ZIP542 |
| Annual payroll | $34,295,000This ZIP$34,295,000 |
Land area
| Land area | 0.08 sq miThis ZIP0.08 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Other place names in 61402
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 61402
| ZIP | City | Distance |
|---|---|---|
61401 | Galesburg, IL | 1.1 mi |
61430 | East Galesburg, IL | 4.9 mi |
61423 | Cameron, IL | 6.3 mi |
61439 | Henderson, IL | 6.8 mi |
61488 | Wataga, IL | 7.7 mi |
61448 | Knoxville, IL | 8.5 mi |
61435 | Gerlaw, IL | 9.3 mi |
61410 | Abingdon, IL | 10.1 mi |
61436 | Gilson, IL | 11.0 mi |
61472 | Rio, IL | 11.3 mi |
Find every ZIP code within 10 miles of 61402 →
Questions about this ZIP code
Where is ZIP code 61402?
61402 is in Galesburg, Illinois, in Knox County, part of the Galesburg, IL micropolitan area. Its published point location is 40.9399, -90.4064.
What county is 61402 in?
61402 lies in Knox County.
What area code is 61402?
Galesburg uses area code 309, from NANPA's telephone records.
What time zone is 61402 in?
61402 uses America/Chicago.
How many people live in 61402?
About 1,623 people live in ZIP code 61402, at 19,554.2 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 61402?
The closest are 61401 (1.1 mi), 61430 (4.9 mi), 61423 (6.3 mi), 61439 (6.8 mi) and 61488 (7.7 mi).
Is 61402 a PO Box ZIP code?
61402 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “61402 ZIP Code — Galesburg, Illinois (Knox County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61402
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/61402.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.