Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/61878

61878

ZIP 61878 is Thomasboro, Illinois, in Champaign County; area code 217; Central time.

Type
Standard
Time zone
America/Chicago
County
Champaign
Population
1,127
Coordinates
40.2427, -88.1455
☼ Live from 61878 — Thomasboro, IL

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 61878 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 61878
  • 🔢 Type 61878 into a pocket calculator and turn it upside down: BLBIg — not quite a word, sorry.
  • ➕ As a number, 61,878 = 2 × 3 × 10313. Its digits add up to 30, a total 1,024 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1111000110110110
  • 🏠 Its numerical neighbours: 61877 (Sidney, IL, 18 mi away) and 61880 (Tolono, IL, 19 mi away).
  • 🔄 Backwards, 61878 becomes 87816, which is not a ZIP code at all.
  • 👥 11 other ZIP codes are made of exactly the same digits (16878, 17868, 17886, 68178, 68718, 68781, …). The farthest-flung twin is 78861 in Hondo, TX, 973 miles away.
  • 🧭 Farther north than 59% of all ZIP codes, and farther west than 51%.
  • 🎯552 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 61878 and you would come out at 40.24°S, 91.85°E — 1,227 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 02m of daylight. Shortest: 9h 18m.
  • 📏 At 28.0 square miles of land, 61878 is bigger than 44% of ZIP codes — room for about 21 Central Parks.
🌙 The sky over 61878 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,127This ZIP1,127
Households519This ZIP519
Housing units591This ZIP591
Median age45.3This ZIP45.3Illinois39.0US 38.9
Median household income$66,250This ZIP$66,250Illinois$83,390US $80,734
Median home value$118,700This ZIP$118,700Illinois$263,300US $332,700
Median gross rent$808This ZIP$808Illinois$1,274US $1,413
Bachelor's degree or higher16.8%This ZIP16.8%
Mean commute22.4 minThis ZIP22.4 min
Population density40.2 / sq miThis ZIP40.2 / sq mi

Business and tax activity

Business establishments26This ZIP26
Employees174This ZIP174
Annual payroll$8,038,000This ZIP$8,038,000
Tax returns filed670This ZIP670
Total adjusted gross income$43,099,000This ZIP$43,099,000

Land area

Land area28.04 sq miThis ZIP28.04 sq mi
Water area0.02 sq miThis ZIP0.02 sq mi

Other place names in 61878

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

ZIP codes near 61878

ZIPCityDistance
61866 Rantoul, IL 4.8 mi
61802 Urbana, IL 8.2 mi
61847 Gifford, IL 8.4 mi
61840 Dewey, IL 9.0 mi
61873 Saint Joseph, IL 9.4 mi
61871 Royal, IL 9.5 mi
60949 Ludlow, IL 9.6 mi
61801 Urbana, IL 9.8 mi
61824 Champaign, IL 10.1 mi
61825 Champaign, IL 10.1 mi

Find every ZIP code within 10 miles of 61878 →

Questions about this ZIP code

Where is ZIP code 61878?

61878 is in Thomasboro, Illinois, in Champaign County, part of the Champaign-Urbana, IL metropolitan area. Its published point location is 40.2427, -88.1455.

What county is 61878 in?

61878 lies in Champaign County.

What area code is 61878?

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

What time zone is 61878 in?

61878 uses America/Chicago.

How many people live in 61878?

About 1,127 people live in ZIP code 61878, in 519 households, at 40.2 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 61878?

$66,250 a year, against $83,390 across Illinois.

What ZIP codes are near 61878?

The closest are 61866 (4.8 mi), 61802 (8.2 mi), 61847 (8.4 mi), 61840 (9 mi) and 61873 (9.4 mi).

Is 61878 a PO Box ZIP code?

61878 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “61878 ZIP Code — Thomasboro, Illinois (Champaign County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61878

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/61878.json

Underlying data is public domain or openly licensed — sources, vintages and licences.