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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/43066

43066

ZIP 43066 is Radnor, Ohio, in Delaware County; area code 740; Eastern time.

Type
Standard
Time zone
America/New_York
County
Delaware
Metro area
Columbus, OH
Population
1,368
Coordinates
40.4026, -83.1729
☼ Live from 43066 — Radnor, OH

Weather right now

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Local time: —

Where 43066 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 43066
  • 🔢 Type 43066 into a pocket calculator and turn it upside down: ggOEh — not quite a word, sorry.
  • ➕ As a number, 43,066 = 2 × 61 × 353. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1010100000111010
  • 🏠 Its numerical neighbours: 43065 (Powell, OH, 16 mi away) and 43067 (Raymond, OH, 17 mi away).
  • 🔄 Backwards, 43066 becomes 66034, which is not a ZIP code at all.
  • 👥 27 other ZIP codes are made of exactly the same digits (03466, 30646, 30664, 34606, 34660, 36046, …). The farthest-flung twin is 34660 in Ozona, FL, 853 miles away.
  • 🧭 Farther north than 60% of all ZIP codes, and farther east than 62%.
  • 🎯814 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 43066 and you would come out at 40.40°S, 96.83°E — 1,208 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 04m of daylight. Shortest: 9h 17m.
  • 📏 At 36.0 square miles of land, 43066 is bigger than 50% of ZIP codes — room for about 27 Central Parks.
🌙 The sky over 43066 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,368This ZIP1,368
Households568This ZIP568
Housing units568This ZIP568
Median age46.0This ZIP46.0Ohio39.7US 38.9
Median household income$129,012This ZIP$129,012Ohio$71,389US $80,734
Median home value$389,400This ZIP$389,400Ohio$214,800US $332,700
Bachelor's degree or higher46.9%This ZIP46.9%
Mean commute34.1 minThis ZIP34.1 min
Population density38.0 / sq miThis ZIP38.0 / sq mi

Business and tax activity

Business establishments25This ZIP25
Employees228This ZIP228
Annual payroll$12,606,000This ZIP$12,606,000
Tax returns filed640This ZIP640
Total adjusted gross income$53,378,000This ZIP$53,378,000

Land area

Land area35.96 sq miThis ZIP35.96 sq mi
Water area0.08 sq miThis ZIP0.08 sq mi

Other place names in 43066

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

ZIP codes near 43066

ZIPCityDistance
43342 Prospect, OH 4.8 mi
43036 Magnetic Springs, OH 5.9 mi
43356 Waldo, OH 7.7 mi
43061 Ostrander, OH 8.0 mi
43322 Green Camp, OH 9.2 mi
43344 Richwood, OH 9.2 mi
43015 Delaware, OH 9.4 mi
43003 Ashley, OH 10.7 mi
43032 Kilbourne, OH 12.4 mi
43007 Broadway, OH 13.0 mi

Find every ZIP code within 10 miles of 43066 →

Questions about this ZIP code

Where is ZIP code 43066?

43066 is in Radnor, Ohio, in Delaware County, part of the Columbus, OH metropolitan area. Its published point location is 40.4026, -83.1729.

What county is 43066 in?

43066 lies in Delaware County.

What area code is 43066?

Radnor uses area code 740, from NANPA's telephone records.

What time zone is 43066 in?

43066 uses America/New_York.

How many people live in 43066?

About 1,368 people live in ZIP code 43066, in 568 households, at 38.0 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 43066?

$129,012 a year, against $71,389 across Ohio.

What ZIP codes are near 43066?

The closest are 43342 (4.8 mi), 43036 (5.9 mi), 43356 (7.7 mi), 43061 (8 mi) and 43322 (9.2 mi).

Is 43066 a PO Box ZIP code?

43066 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “43066 ZIP Code — Radnor, Ohio (Delaware County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/43066

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