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zipcodes.pro — ZIP/61261

61261

ZIP 61261 is Lyndon, Illinois, in Whiteside County; area code 815; Central time.

Type
Standard
Time zone
America/Chicago
County
Whiteside
Metro area
Sterling, IL
Population
656
Coordinates
41.7360, -89.9100
☼ Live from 61261 — Lyndon, IL

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Local time: —

Where 61261 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 61261
  • 🔢 Type 61261 into a pocket calculator and turn it upside down: IgZIg — not quite a word, sorry.
  • ➕ 61261 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 16, a total 1,922 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1110111101001101
  • 🏠 Its numerical neighbours: 61260 (Joy, IL, 61 mi away) and 61262 (Lynn Center, IL, 39 mi away).
  • 🔄 Backwards, 61261 becomes 16216, which is not a ZIP code at all.
  • 👥 11 other ZIP codes are made of exactly the same digits (12166, 16261, 16621, 21661, 26161, 26611, …). The farthest-flung twin is 12166 in Sprakers, NY, 792 miles away.
  • 🧭 Farther north than 73% of all ZIP codes, and farther west than 56%.
  • 🎯472 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 61261 and you would come out at 41.74°S, 90.09°E — 1,091 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 13m of daylight. Shortest: 9h 08m.
  • 📏 At 16.6 square miles of land, 61261 is bigger than 34% of ZIP codes — room for about 13 Central Parks.
🌙 The sky over 61261 today
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🌋 Shake report
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Source: USGS.

People and housing

Population656This ZIP656
Households327This ZIP327
Housing units417This ZIP417
Median age60.0This ZIP60.0Illinois39.0US 38.9
Median household income$64,375This ZIP$64,375Illinois$83,390US $80,734
Median home value$134,100This ZIP$134,100Illinois$263,300US $332,700
Bachelor's degree or higher22.9%This ZIP22.9%
Mean commute31.8 minThis ZIP31.8 min
Population density39.6 / sq miThis ZIP39.6 / sq mi

Business and tax activity

Business establishments14This ZIP14
Employees99This ZIP99
Annual payroll$4,717,000This ZIP$4,717,000
Tax returns filed430This ZIP430
Total adjusted gross income$24,758,000This ZIP$24,758,000

Land area

Land area16.56 sq miThis ZIP16.56 sq mi
Water area0.29 sq miThis ZIP0.29 sq mi

Other place names in 61261

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

ZIP codes near 61261

ZIPCityDistance
61270 Morrison, IL 6.8 mi
61251 Fenton, IL 8.4 mi
61277 Prophetstown, IL 8.5 mi
61037 Galt, IL 8.5 mi
61071 Rock Falls, IL 10.9 mi
61081 Sterling, IL 11.8 mi
61250 Erie, IL 11.8 mi
61283 Tampico, IL 11.8 mi
61252 Fulton, IL 13.1 mi
61243 Deer Grove, IL 14.5 mi

Find every ZIP code within 10 miles of 61261 →

Questions about this ZIP code

Where is ZIP code 61261?

61261 is in Lyndon, Illinois, in Whiteside County, part of the Sterling, IL micropolitan area. Its published point location is 41.7360, -89.9100.

What county is 61261 in?

61261 lies in Whiteside County.

What area code is 61261?

Lyndon uses area code 815, from NANPA's telephone records.

What time zone is 61261 in?

61261 uses America/Chicago.

How many people live in 61261?

About 656 people live in ZIP code 61261, in 327 households, at 39.6 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 61261?

$64,375 a year, against $83,390 across Illinois.

What ZIP codes are near 61261?

The closest are 61270 (6.8 mi), 61251 (8.4 mi), 61277 (8.5 mi), 61037 (8.5 mi) and 61071 (10.9 mi).

Is 61261 a PO Box ZIP code?

61261 is a standard ZIP code. A normal ZIP code with street delivery.

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zipcodes.pro. “61261 ZIP Code — Lyndon, Illinois (Whiteside County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61261

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