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zipcodes.pro — ZIP/61770

61770

ZIP 61770 is Saybrook, Illinois, in McLean County; area code 309; Central time.

Type
Standard
Time zone
America/Chicago
County
McLean
Metro area
Bloomington, IL
Population
1,067
Coordinates
40.4395, -88.5108
☼ Live from 61770 — Saybrook, IL

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Where 61770 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 61770
  • 🔢 Type 61770 into a pocket calculator and turn it upside down: OLLIg — not quite a word, sorry.
  • ➕ As a number, 61,770 = 2 × 3 × 5 × 29 × 71. Its digits add up to 21, a total 2,594 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1111000101001010
  • 🏠 Its numerical neighbours: 61769 (Saunemin, IL, 31 mi away) and 61771 (Secor, IL, 38 mi away).
  • 🔄 Backwards, 61770 becomes 07716 — and that is a real ZIP code: Atlantic Highlands, NJ, 761 miles away.
  • 👥 24 other ZIP codes are made of exactly the same digits (01776, 07716, 17067, 17076, 17607, 17760, …). The farthest-flung twin is 01776 in Sudbury, MA, 894 miles away.
  • 🧭 Farther north than 60% of all ZIP codes, and farther west than 52%.
  • 🎯533 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 61770 and you would come out at 40.44°S, 91.49°E — 1,203 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 04m of daylight. Shortest: 9h 17m.
  • 📏 At 60.5 square miles of land, 61770 is bigger than 65% of ZIP codes — room for about 46 Central Parks.
🌙 The sky over 61770 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,067This ZIP1,067
Households387This ZIP387
Housing units435This ZIP435
Median age37.7This ZIP37.7Illinois39.0US 38.9
Median household income$60,750This ZIP$60,750Illinois$83,390US $80,734
Median home value$110,900This ZIP$110,900Illinois$263,300US $332,700
Median gross rent$973This ZIP$973Illinois$1,274US $1,413
Bachelor's degree or higher16.4%This ZIP16.4%
Mean commute33.7 minThis ZIP33.7 min
Population density17.6 / sq miThis ZIP17.6 / sq mi

Business and tax activity

Business establishments19This ZIP19
Employees51This ZIP51
Annual payroll$2,620,000This ZIP$2,620,000
Tax returns filed500This ZIP500
Total adjusted gross income$35,421,000This ZIP$35,421,000

Land area

Land area60.46 sq miThis ZIP60.46 sq mi
Water area0.05 sq miThis ZIP0.05 sq mi

Other place names in 61770

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

ZIP codes near 61770

ZIPCityDistance
61722 Arrowsmith, IL 6.2 mi
61724 Bellflower, IL 7.3 mi
61845 Foosland, IL 7.5 mi
61720 Anchor, IL 7.7 mi
60936 Gibson City, IL 8.0 mi
61843 Fisher, IL 11.1 mi
61773 Sibley, IL 11.3 mi
61728 Colfax, IL 11.4 mi
61737 Ellsworth, IL 11.8 mi
61731 Cropsey, IL 12.0 mi

Find every ZIP code within 10 miles of 61770 →

Questions about this ZIP code

Where is ZIP code 61770?

61770 is in Saybrook, Illinois, in McLean County, part of the Bloomington, IL metropolitan area. Its published point location is 40.4395, -88.5108.

What county is 61770 in?

61770 lies in McLean County.

What area code is 61770?

Saybrook uses area code 309, from NANPA's telephone records.

What time zone is 61770 in?

61770 uses America/Chicago.

How many people live in 61770?

About 1,067 people live in ZIP code 61770, in 387 households, at 17.6 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 61770?

$60,750 a year, against $83,390 across Illinois.

What ZIP codes are near 61770?

The closest are 61722 (6.2 mi), 61724 (7.3 mi), 61845 (7.5 mi), 61720 (7.7 mi) and 60936 (8 mi).

Is 61770 a PO Box ZIP code?

61770 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “61770 ZIP Code — Saybrook, Illinois (McLean County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61770

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