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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/61236

61236

ZIP 61236 is Barstow, Illinois, in Rock Island County; area code 309; Central time.

Type
Standard
Time zone
America/Chicago
County
Rock Island
Population
34
Coordinates
41.5144, -90.3556
☼ Live from 61236 — Barstow, IL

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Local time: —

Where 61236 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 61236
  • 🔢 Type 61236 into a pocket calculator and turn it upside down: gEZIg — not quite a word, sorry.
  • ➕ As a number, 61,236 = 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 7. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1110111100110100
  • 🏠 Its numerical neighbours: 61235 (Atkinson, IL, 19 mi away) and 61237 (Buffalo Prairie, IL, 29 mi away).
  • 🔄 Backwards, 61236 becomes 63216, which is not a ZIP code at all.
  • 👥 27 other ZIP codes are made of exactly the same digits (13626, 13662, 16236, 16263, 16326, 16362, …). The farthest-flung twin is 32616 in Alachua, FL, 922 miles away.
  • 🧭 Farther north than 71% of all ZIP codes, and farther west than 57%.
  • 🎯446 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 61236 and you would come out at 41.51°S, 89.64°E — 1,082 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 11m of daylight. Shortest: 9h 10m.
  • 📏 At 0.801 square miles of land, 61236 is bigger than 7% of ZIP codes — about 388 football fields.
🌙 The sky over 61236 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population34This ZIP34
Households13This ZIP13
Housing units21This ZIP21
Median age36.3This ZIP36.3Illinois39.0US 38.9
Median household income$77,813This ZIP$77,813Illinois$83,390US $80,734
Median home value$159,400This ZIP$159,400Illinois$263,300US $332,700
Bachelor's degree or higher8.7%This ZIP8.7%
Population density42.4 / sq miThis ZIP42.4 / sq mi

Land area

Land area0.80 sq miThis ZIP0.80 sq mi
Water area0.08 sq miThis ZIP0.08 sq mi

Other place names in 61236

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

ZIP codes near 61236

ZIPCityDistance
61244 East Moline, IL 1.9 mi
61239 Carbon Cliff, IL 2.2 mi
61241 Colona, IL 2.6 mi
61282 Silvis, IL 3.2 mi
61256 Hampton, IL 4.0 mi
61278 Rapids City, IL 4.6 mi
52767 Pleasant Valley, IA 5.5 mi
61275 Port Byron, IL 6.8 mi
52722 Bettendorf, IA 7.1 mi
61265 Moline, IL 7.2 mi

Find every ZIP code within 10 miles of 61236 →

Questions about this ZIP code

Where is ZIP code 61236?

61236 is in Barstow, Illinois, in Rock Island County, part of the Davenport-Moline-Rock Island, IA-IL metropolitan area. Its published point location is 41.5144, -90.3556.

What county is 61236 in?

61236 lies in Rock Island County.

What area code is 61236?

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

What time zone is 61236 in?

61236 uses America/Chicago.

How many people live in 61236?

About 34 people live in ZIP code 61236, in 13 households, at 42.4 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 61236?

$77,813 a year, against $83,390 across Illinois.

What ZIP codes are near 61236?

The closest are 61244 (1.9 mi), 61239 (2.2 mi), 61241 (2.6 mi), 61282 (3.2 mi) and 61256 (4 mi).

Is 61236 a PO Box ZIP code?

61236 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “61236 ZIP Code — Barstow, Illinois (Rock Island County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61236

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