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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/43101

43101

ZIP 43101 is Adelphi, Ohio, in Ross County; area code 740; Eastern time.

Type
Standard
Time zone
America/New_York
County
Ross
Metro area
Chillicothe, OH
Population
316
Coordinates
39.4645, -82.7461
☼ Live from 43101 — Adelphi, OH

Weather right now

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Local time: —

Where 43101 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 43101
  • 🔢 Type 43101 into a pocket calculator and turn it upside down: IOIEh — not quite a word, sorry.
  • ➕ As a number, 43,101 = 3 × 3 × 4789. Its digits add up to 9, a total 375 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1010100001011101
  • 🏠 Its numerical neighbours: 43093 (Newark, OH, 46 mi away) and 43102 (Amanda, OH, 12 mi away).
  • 🔄 Backwards, 43101 becomes 10134, which is not a ZIP code at all.
  • 👥 30 other ZIP codes are made of exactly the same digits (01341, 01431, 10314, 11430, 13041, 13104, …). The farthest-flung twin is 34011 in APO AA, a military post office, 2,116 miles away.
  • 🧭 Farther north than 52% of all ZIP codes, and farther east than 64%.
  • 🎯842 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 43101 and you would come out at 39.46°S, 97.25°E — 1,163 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 57m of daylight. Shortest: 9h 23m.
  • 📏 At 0.274 square miles of land, 43101 is bigger than 3% of ZIP codes — about 133 football fields.
🌙 The sky over 43101 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population316This ZIP316
Households160This ZIP160
Housing units163This ZIP163
Median age41.0This ZIP41.0Ohio39.7US 38.9
Median household income$39,107This ZIP$39,107Ohio$71,389US $80,734
Median home value$164,300This ZIP$164,300Ohio$214,800US $332,700
Median gross rent$900This ZIP$900Ohio$1,034US $1,413
Bachelor's degree or higher15.6%This ZIP15.6%
Mean commute31.4 minThis ZIP31.4 min
Population density1,153.3 / sq miThis ZIP1,153.3 / sq mi

Business and tax activity

Business establishments4This ZIP4
Employees13This ZIP13
Annual payroll$372,000This ZIP$372,000

Land area

Land area0.27 sq miThis ZIP0.27 sq mi
Water area0.00 sq miThis ZIP0.00 sq mi

Other place names in 43101

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

ZIP codes near 43101

ZIPCityDistance
45633 Hallsville, OH 0.1 mi
43135 Laurelville, OH 1.9 mi
45644 Kingston, OH 4.9 mi
43156 Tarlton, OH 6.4 mi
43152 South Bloomingville, OH 8.5 mi
43149 Rockbridge, OH 10.5 mi
43154 Stoutsville, OH 10.6 mi
45647 Londonderry, OH 11.3 mi
43102 Amanda, OH 12.2 mi
43113 Circleville, OH 14.3 mi

Find every ZIP code within 10 miles of 43101 →

Questions about this ZIP code

Where is ZIP code 43101?

43101 is in Adelphi, Ohio, in Ross County, part of the Chillicothe, OH micropolitan area. Its published point location is 39.4645, -82.7461.

What county is 43101 in?

43101 lies in Ross County.

What area code is 43101?

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

What time zone is 43101 in?

43101 uses America/New_York.

How many people live in 43101?

About 316 people live in ZIP code 43101, in 160 households, at 1,153.3 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 43101?

$39,107 a year, against $71,389 across Ohio.

What ZIP codes are near 43101?

The closest are 45633 (0.1 mi), 43135 (1.9 mi), 45644 (4.9 mi), 43156 (6.4 mi) and 43152 (8.5 mi).

Is 43101 a PO Box ZIP code?

43101 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “43101 ZIP Code — Adelphi, Ohio (Ross County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/43101

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