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zipcodes.pro — ZIP/61931

61931

ZIP 61931 is Humboldt, Illinois, in Coles County; area code 217; Central time.

Type
Standard
Time zone
America/Chicago
County
Coles
Population
1,350
Coordinates
39.5861, -88.3681
☼ Live from 61931 — Humboldt, IL

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Local time: —

Where 61931 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 61931
  • 🔢 Type 61931 into a pocket calculator and turn it upside down: IEGIg — not quite a word, sorry.
  • ➕ As a number, 61,931 = 17 × 3643. Its digits add up to 20, a total 2,586 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1111000111101011
  • 🏠 Its numerical neighbours: 61930 (Hindsboro, IL, 14 mi away) and 61932 (Hume, IL, 30 mi away).
  • 🔄 Backwards, 61931 becomes 13916, which is not a ZIP code at all.
  • 👥 23 other ZIP codes are made of exactly the same digits (11369, 11693, 11963, 13619, 13691, 16319, …). The farthest-flung twin is 93116 in Goleta, CA, 1,762 miles away.
  • 🧭 Farther north than 53% of all ZIP codes, and farther west than 52%.
  • 🎯543 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 61931 and you would come out at 39.59°S, 91.63°E — 1,246 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 58m of daylight. Shortest: 9h 22m.
  • 📏 At 32.6 square miles of land, 61931 is bigger than 48% of ZIP codes — room for about 25 Central Parks.
🌙 The sky over 61931 today
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🌋 Shake report
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Source: USGS.

People and housing

Population1,350This ZIP1,350
Households501This ZIP501
Housing units513This ZIP513
Median age38.8This ZIP38.8Illinois39.0US 38.9
Median household income$74,125This ZIP$74,125Illinois$83,390US $80,734
Median home value$135,000This ZIP$135,000Illinois$263,300US $332,700
Median gross rent$851This ZIP$851Illinois$1,274US $1,413
Bachelor's degree or higher17.0%This ZIP17.0%
Mean commute23.2 minThis ZIP23.2 min
Population density41.5 / sq miThis ZIP41.5 / sq mi

Business and tax activity

Business establishments16This ZIP16
Employees46This ZIP46
Annual payroll$1,902,000This ZIP$1,902,000
Tax returns filed520This ZIP520
Total adjusted gross income$41,849,000This ZIP$41,849,000

Land area

Land area32.56 sq miThis ZIP32.56 sq mi
Water area0.02 sq miThis ZIP0.02 sq mi

Other place names in 61931

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

ZIP codes near 61931

ZIPCityDistance
61910 Arcola, IL 7.0 mi
61938 Mattoon, IL 7.4 mi
61911 Arthur, IL 9.6 mi
61928 Gays, IL 11.4 mi
61951 Sullivan, IL 11.9 mi
61920 Charleston, IL 12.5 mi
61930 Hindsboro, IL 14.3 mi
62440 Lerna, IL 14.4 mi
61953 Tuscola, IL 15.2 mi
62435 Janesville, IL 16.1 mi

Find every ZIP code within 10 miles of 61931 →

Questions about this ZIP code

Where is ZIP code 61931?

61931 is in Humboldt, Illinois, in Coles County, part of the Charleston-Mattoon, IL micropolitan area. Its published point location is 39.5861, -88.3681.

What county is 61931 in?

61931 lies in Coles County.

What area code is 61931?

Humboldt uses area code 217, from NANPA's telephone records.

What time zone is 61931 in?

61931 uses America/Chicago.

How many people live in 61931?

About 1,350 people live in ZIP code 61931, in 501 households, at 41.5 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 61931?

$74,125 a year, against $83,390 across Illinois.

What ZIP codes are near 61931?

The closest are 61910 (7 mi), 61938 (7.4 mi), 61911 (9.6 mi), 61928 (11.4 mi) and 61951 (11.9 mi).

Is 61931 a PO Box ZIP code?

61931 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “61931 ZIP Code — Humboldt, Illinois (Coles County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61931

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