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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/43005

43005

ZIP 43005 is Bladensburg, Ohio, in Knox County; area code 740; Eastern time.

Type
Standard
Time zone
America/New_York
County
Knox
Metro area
Mount Vernon, OH
Population
339
Coordinates
40.2816, -82.2690
☼ Live from 43005 — Bladensburg, OH

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Where 43005 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 43005
  • 🔢 Type 43005 into a pocket calculator and turn it upside down: SOOEh — not quite a word, sorry.
  • ➕ As a number, 43,005 = 3 × 5 × 47 × 61. Its digits add up to 12, a total 940 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1010011111111101
  • 🏠 Its numerical neighbours: 43004 (Blacklick, OH, 34 mi away) and 43006 (Brinkhaven, OH, 14 mi away).
  • 🔄 Backwards, 43005 becomes 50034 — and that is a real ZIP code: Blairsburg, IA, 609 miles away.
  • 👥 32 other ZIP codes are made of exactly the same digits (03045, 03054, 03450, 04350, 04530, 05034, …). The farthest-flung twin is 34005 in APO AA, a military post office, 2,146 miles away.
  • 🧭 Farther north than 59% of all ZIP codes, and farther east than 66%.
  • 🎯862 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 43005 and you would come out at 40.28°S, 97.73°E — 1,161 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 03m of daylight. Shortest: 9h 18m.
  • 📏 At 2.0 square miles of land, 43005 is bigger than 11% of ZIP codes — room for about 1.5 Central Parks.
🌙 The sky over 43005 today
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🌋 Shake report
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Source: USGS.

People and housing

Population339This ZIP339
Households176This ZIP176
Housing units176This ZIP176
Median age34.8This ZIP34.8Ohio39.7US 38.9
Median household income$72,910This ZIP$72,910Ohio$71,389US $80,734
Median home value$97,400This ZIP$97,400Ohio$214,800US $332,700
Bachelor's degree or higher0.0%
Population density173.8 / sq miThis ZIP173.8 / sq mi

Business and tax activity

Business establishments7This ZIP7
Employees20This ZIP20
Annual payroll$239,000This ZIP$239,000

Land area

Land area1.95 sq miThis ZIP1.95 sq mi
Water area0.00 sq miThis ZIP0.00 sq mi

Other place names in 43005

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

ZIP codes near 43005

ZIPCityDistance
43037 Martinsburg, OH 2.9 mi
43022 Gambier, OH 5.8 mi
43843 Walhonding, OH 6.8 mi
43028 Howard, OH 8.4 mi
43071 Saint Louisville, OH 8.4 mi
43080 Utica, OH 8.9 mi
43822 Frazeysburg, OH 9.1 mi
43844 Warsaw, OH 12.0 mi
43014 Danville, OH 13.0 mi
43055 Newark, OH 13.2 mi

Find every ZIP code within 10 miles of 43005 →

Questions about this ZIP code

Where is ZIP code 43005?

43005 is in Bladensburg, Ohio, in Knox County, part of the Mount Vernon, OH micropolitan area. Its published point location is 40.2816, -82.2690.

What county is 43005 in?

43005 lies in Knox County.

What area code is 43005?

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

What time zone is 43005 in?

43005 uses America/New_York.

How many people live in 43005?

About 339 people live in ZIP code 43005, in 176 households, at 173.8 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 43005?

$72,910 a year, against $71,389 across Ohio.

What ZIP codes are near 43005?

The closest are 43037 (2.9 mi), 43022 (5.8 mi), 43843 (6.8 mi), 43028 (8.4 mi) and 43071 (8.4 mi).

Is 43005 a PO Box ZIP code?

43005 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “43005 ZIP Code — Bladensburg, Ohio (Knox County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/43005

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