61820
ZIP 61820 is in Champaign, Illinois, in Champaign County; area codes 217 and 447; Central time. Champaign has 6 ZIP codes; the others are 61821, 61822, 61824, 61825 and 61826.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Champaign
- Metro area
- Champaign-Urbana, IL
- Population
- 40,599
- Coordinates
- 40.1121, -88.2443
Weather right now
Asking the National Weather Service…
Where 61820 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 61820 into a pocket calculator and turn it upside down: OZBIg — not quite a word, sorry.
- ➕ As a number, 61,820 = 2 × 2 × 5 × 11 × 281. Its digits add up to 17, a total 2,133 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1111000101111100 - 🏠 Its numerical neighbours: 61818 (Cerro Gordo, IL, 29 mi away) and 61821 (Champaign, IL, 2 mi away).
- 🔄 Backwards, 61820 becomes 02816 — and that is a real ZIP code: Coventry, RI, 873 miles away.
- 👥 52 other ZIP codes are made of exactly the same digits (01826, 01862, 02186, 02816, 02861, 06128, …). The farthest-flung twin is 86021 in Colorado City, AZ, 1,359 miles away.
- 🧭 Farther north than 58% of all ZIP codes, and farther west than 51%.
- 🎯547 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 61820 and you would come out at 40.11°S, 91.76°E — 1,228 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 5.9 square miles of land, 61820 is bigger than 21% of ZIP codes — room for about 4.5 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 40,599This ZIP40,599 |
|---|---|
| Households | 16,033This ZIP16,033 |
| Housing units | 19,136This ZIP19,136 |
| Median age | 21.9This ZIP21.9Illinois39.0US 38.9 |
| Median household income | $27,539This ZIP$27,539Illinois$83,390US $80,734 |
| Median home value | $184,500This ZIP$184,500Illinois$263,300US $332,700 |
| Median gross rent | $1,108This ZIP$1,108Illinois$1,274US $1,413 |
| Bachelor's degree or higher | 53.3%This ZIP53.3% |
| Mean commute | 14.1 minThis ZIP14.1 min |
| Population density | 6,842.9 / sq miThis ZIP6,842.9 / sq mi |
Business and tax activity
| Business establishments | 1,135This ZIP1,135 |
|---|---|
| Employees | 19,035This ZIP19,035 |
| Annual payroll | $940,186,000This ZIP$940,186,000 |
| Tax returns filed | 9,850This ZIP9,850 |
| Total adjusted gross income | $543,873,000This ZIP$543,873,000 |
Land area
| Land area | 5.93 sq miThis ZIP5.93 sq mi |
|---|---|
| Water area | 0.01 sq miThis ZIP0.01 sq mi |
Other place names in 61820
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 61820
| ZIP | City | Distance |
|---|---|---|
61824 | Champaign, IL | 0.3 mi |
61825 | Champaign, IL | 0.3 mi |
61803 | Urbana, IL | 1.1 mi |
61821 | Champaign, IL | 1.7 mi |
61801 | Urbana, IL | 1.8 mi |
61822 | Champaign, IL | 3.4 mi |
61874 | Savoy, IL | 4.2 mi |
61802 | Urbana, IL | 4.9 mi |
61826 | Champaign, IL | 6.2 mi |
61815 | Bondville, IL | 6.5 mi |
Find every ZIP code within 10 miles of 61820 →
Questions about this ZIP code
Where is ZIP code 61820?
61820 is in Champaign, Illinois, in Champaign County, part of the Champaign-Urbana, IL metropolitan area. Its published point location is 40.1121, -88.2443.
What county is 61820 in?
61820 lies in Champaign County.
What area code is 61820?
Champaign uses area codes 217 and 447, from NANPA's telephone records.
What time zone is 61820 in?
61820 uses America/Chicago.
How many people live in 61820?
About 40,599 people live in ZIP code 61820, in 16,033 households, at 6,842.9 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 61820?
$27,539 a year, against $83,390 across Illinois.
What ZIP codes are near 61820?
The closest are 61824 (0.3 mi), 61825 (0.3 mi), 61803 (1.1 mi), 61821 (1.7 mi) and 61801 (1.8 mi).
Is 61820 a PO Box ZIP code?
61820 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “61820 ZIP Code — Champaign, Illinois (Champaign County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61820
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/61820.json Underlying data is public domain or openly licensed — sources, vintages and licences.