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zipcodes.pro — ZIP/61439

61439

ZIP 61439 is Henderson, Illinois, in Knox County; area code 309; Central time.

Type
Standard
Time zone
America/Chicago
County
Knox
Metro area
Galesburg, IL
Population
299
Coordinates
41.0292, -90.3502
☼ Live from 61439 — Henderson, IL

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Local time: —

Where 61439 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.

★ Weird and wonderful facts about 61439
  • 🔢 Type 61439 into a pocket calculator and turn it upside down: GEhIg — not quite a word, sorry.
  • ➕ As a number, 61,439 = 7 × 67 × 131. Its digits add up to 23, a total 2,533 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1110111111111111
  • 🏠 Its numerical neighbours: 61438 (Good Hope, IL, 34 mi away) and 61440 (Industry, IL, 51 mi away).
  • 🔄 Backwards, 61439 becomes 93416, which is not a ZIP code at all.
  • 👥 40 other ZIP codes are made of exactly the same digits (13469, 13649, 13694, 14639, 16943, 19346, …). The farthest-flung twin is 96431 in APO AA, a military post office, 8,080 miles away.
  • 🧭 Farther north than 67% of all ZIP codes, and farther west than 57%.
  • 🎯441 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 61439 and you would come out at 41.03°S, 89.65°E — 1,102 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 08m of daylight. Shortest: 9h 13m.
  • 📏 At 1.3 square miles of land, 61439 is bigger than 9% of ZIP codes — about 605 football fields.
🌙 The sky over 61439 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population299This ZIP299
Households123This ZIP123
Housing units136This ZIP136
Median age37.3This ZIP37.3Illinois39.0US 38.9
Median household income$59,125This ZIP$59,125Illinois$83,390US $80,734
Median home value$113,900This ZIP$113,900Illinois$263,300US $332,700
Median gross rent$663This ZIP$663Illinois$1,274US $1,413
Bachelor's degree or higher20.2%This ZIP20.2%
Mean commute25.7 minThis ZIP25.7 min
Population density239.2 / sq miThis ZIP239.2 / sq mi

Land area

Land area1.25 sq miThis ZIP1.25 sq mi
Water area0.00 sq mi

Other place names in 61439

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 61439

ZIPCityDistance
61488 Wataga, IL 1.5 mi
61472 Rio, IL 5.4 mi
61401 Galesburg, IL 6.1 mi
61430 East Galesburg, IL 6.2 mi
61467 Oneida, IL 6.3 mi
61402 Galesburg, IL 6.8 mi
61448 Knoxville, IL 8.6 mi
61466 North Henderson, IL 8.9 mi
61413 Alpha, IL 10.9 mi
61435 Gerlaw, IL 11.6 mi

Find every ZIP code within 10 miles of 61439 →

Questions about this ZIP code

Where is ZIP code 61439?

61439 is in Henderson, Illinois, in Knox County, part of the Galesburg, IL micropolitan area. Its published point location is 41.0292, -90.3502.

What county is 61439 in?

61439 lies in Knox County.

What area code is 61439?

Henderson uses area code 309, from NANPA's telephone records.

What time zone is 61439 in?

61439 uses America/Chicago.

How many people live in 61439?

About 299 people live in ZIP code 61439, in 123 households, at 239.2 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 61439?

$59,125 a year, against $83,390 across Illinois.

What ZIP codes are near 61439?

The closest are 61488 (1.5 mi), 61472 (5.4 mi), 61401 (6.1 mi), 61430 (6.2 mi) and 61467 (6.3 mi).

Is 61439 a PO Box ZIP code?

61439 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “61439 ZIP Code — Henderson, Illinois (Knox County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61439

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