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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/45243

45243

ZIP 45243 is in Cincinnati, Ohio, in Hamilton County; area codes 513 and 283; Eastern time. Cincinnati has 71 ZIP codes in all.

Type
Standard
Time zone
America/New_York
County
Hamilton
Population
16,103
Coordinates
39.1886, -84.3360
☼ Live from 45243 — Cincinnati, OH

Weather right now

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Local time: —

Where 45243 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 45243
  • 🔢 Type 45243 into a pocket calculator and turn it upside down: EhZSh — not quite a word, sorry.
  • ➕ As a number, 45,243 = 3 × 3 × 11 × 457. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1011000010111011
  • 🏠 Its numerical neighbours: 45242 (Cincinnati, OH, 4 mi away) and 45244 (Cincinnati, OH, 5 mi away).
  • 🔄 Backwards, 45243 becomes 34254, which is not a ZIP code at all.
  • 👥 31 other ZIP codes are made of exactly the same digits (23454, 24354, 24435, 24534, 24543, 25434, …). The farthest-flung twin is 34452 in Inverness, FL, 729 miles away.
  • 🧭 Farther north than 50% of all ZIP codes, and farther east than 59%.
  • 🎯760 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 45243 and you would come out at 39.19°S, 95.66°E — 1,237 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 56m of daylight. Shortest: 9h 24m.
  • 📏 At 19.4 square miles of land, 45243 is bigger than 37% of ZIP codes — room for about 15 Central Parks.
🌙 The sky over 45243 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population16,103This ZIP16,103
Households6,217This ZIP6,217
Housing units6,398This ZIP6,398
Median age44.0This ZIP44.0Ohio39.7US 38.9
Median household income$171,172This ZIP$171,172Ohio$71,389US $80,734
Median home value$627,000This ZIP$627,000Ohio$214,800US $332,700
Median gross rent$1,828This ZIP$1,828Ohio$1,034US $1,413
Bachelor's degree or higher72.7%This ZIP72.7%
Mean commute21.4 minThis ZIP21.4 min
Population density829.8 / sq miThis ZIP829.8 / sq mi

Business and tax activity

Business establishments344This ZIP344
Employees3,098This ZIP3,098
Annual payroll$203,824,000This ZIP$203,824,000
Tax returns filed7,420This ZIP7,420
Total adjusted gross income$3,419,072,000This ZIP$3,419,072,000

Land area

Land area19.41 sq miThis ZIP19.41 sq mi
Water area0.09 sq miThis ZIP0.09 sq mi

Other place names in 45243

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

ZIP codes near 45243

ZIPCityDistance
45147 Miamiville, OH 2.4 mi
45174 Terrace Park, OH 2.4 mi
45111 Camp Dennison, OH 2.8 mi
45236 Cincinnati, OH 3.6 mi
45227 Cincinnati, OH 3.6 mi
45242 Cincinnati, OH 3.9 mi
45213 Cincinnati, OH 4.5 mi
45244 Cincinnati, OH 5.2 mi
45209 Cincinnati, OH 5.5 mi
45150 Milford, OH 5.9 mi

Find every ZIP code within 10 miles of 45243 →

Questions about this ZIP code

Where is ZIP code 45243?

45243 is in Cincinnati, Ohio, in Hamilton County, part of the Cincinnati, OH-KY-IN metropolitan area. Its published point location is 39.1886, -84.3360.

What county is 45243 in?

45243 lies in Hamilton County.

What area code is 45243?

Cincinnati uses area codes 513 and 283, from NANPA's telephone records.

What time zone is 45243 in?

45243 uses America/New_York.

How many people live in 45243?

About 16,103 people live in ZIP code 45243, in 6,217 households, at 829.8 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 45243?

$171,172 a year, against $71,389 across Ohio.

What ZIP codes are near 45243?

The closest are 45147 (2.4 mi), 45174 (2.4 mi), 45111 (2.8 mi), 45236 (3.6 mi) and 45227 (3.6 mi).

Is 45243 a PO Box ZIP code?

45243 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “45243 ZIP Code — Cincinnati, Ohio (Hamilton County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/45243

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