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zipcodes.pro — ZIP/61821

61821

ZIP 61821 is in Champaign, Illinois, in Champaign County; area codes 217 and 447; Central time. Champaign has 6 ZIP codes; the others are 61820, 61822, 61824, 61825 and 61826.

Type
Standard
Time zone
America/Chicago
County
Champaign
Population
28,611
Coordinates
40.1111, -88.2755
☼ Live from 61821 — Champaign, IL

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Where 61821 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 61821
  • 🔢 Type 61821 into a pocket calculator and turn it upside down: IZBIg — not quite a word, sorry.
  • ➕ As a number, 61,821 = 3 × 3 × 6869. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1111000101111101
  • 🏠 Its numerical neighbours: 61820 (Champaign, IL, 2 mi away) and 61822 (Champaign, IL, 2 mi away).
  • 🔄 Backwards, 61821 becomes 12816 — and that is a real ZIP code: Cambridge, NY, 795 miles away.
  • 👥 19 other ZIP codes are made of exactly the same digits (12168, 12186, 12816, 12861, 16218, 16821, …). The farthest-flung twin is 81612 in Aspen, CO, 990 miles away.
  • 🧭 Farther north than 58% of all ZIP codes, and farther west than 51%.
  • 🎯546 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 61821 and you would come out at 40.11°S, 91.72°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 19m.
  • 📏 At 7.7 square miles of land, 61821 is bigger than 24% of ZIP codes — room for about 5.8 Central Parks.
🌙 The sky over 61821 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population28,611This ZIP28,611
Households12,405This ZIP12,405
Housing units13,441This ZIP13,441
Median age36.6This ZIP36.6Illinois39.0US 38.9
Median household income$70,715This ZIP$70,715Illinois$83,390US $80,734
Median home value$181,800This ZIP$181,800Illinois$263,300US $332,700
Median gross rent$1,031This ZIP$1,031Illinois$1,274US $1,413
Bachelor's degree or higher48.9%This ZIP48.9%
Mean commute15.3 minThis ZIP15.3 min
Population density3,719.1 / sq miThis ZIP3,719.1 / sq mi

Business and tax activity

Business establishments565This ZIP565
Employees9,301This ZIP9,301
Annual payroll$431,803,000This ZIP$431,803,000
Tax returns filed13,630This ZIP13,630
Total adjusted gross income$1,044,768,000This ZIP$1,044,768,000

Land area

Land area7.69 sq miThis ZIP7.69 sq mi
Water area0.02 sq miThis ZIP0.02 sq mi

Other place names in 61821

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

ZIP codes near 61821

ZIPCityDistance
61820 Champaign, IL 1.7 mi
61824 Champaign, IL 1.7 mi
61825 Champaign, IL 1.7 mi
61822 Champaign, IL 2.1 mi
61803 Urbana, IL 2.7 mi
61801 Urbana, IL 3.4 mi
61874 Savoy, IL 4.0 mi
61826 Champaign, IL 4.5 mi
61815 Bondville, IL 4.9 mi
61802 Urbana, IL 6.5 mi

Find every ZIP code within 10 miles of 61821 →

Questions about this ZIP code

Where is ZIP code 61821?

61821 is in Champaign, Illinois, in Champaign County, part of the Champaign-Urbana, IL metropolitan area. Its published point location is 40.1111, -88.2755.

What county is 61821 in?

61821 lies in Champaign County.

What area code is 61821?

Champaign uses area codes 217 and 447, from NANPA's telephone records.

What time zone is 61821 in?

61821 uses America/Chicago.

How many people live in 61821?

About 28,611 people live in ZIP code 61821, in 12,405 households, at 3,719.1 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 61821?

$70,715 a year, against $83,390 across Illinois.

What ZIP codes are near 61821?

The closest are 61820 (1.7 mi), 61824 (1.7 mi), 61825 (1.7 mi), 61822 (2.1 mi) and 61803 (2.7 mi).

Is 61821 a PO Box ZIP code?

61821 is a standard ZIP code. A normal ZIP code with street delivery.

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zipcodes.pro. “61821 ZIP Code — Champaign, Illinois (Champaign County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61821

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