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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/30123

30123

ZIP 30123 is Cassville, Georgia, in Bartow County; Eastern time.

Type
No street area
Time zone
America/New_York
County
Bartow
Coordinates
34.2442, -84.8457

The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

This ZIP code has no Census tabulation area of its own. Its point falls inside ZCTA 30121, whose figures describe that area — not this ZIP code.

☼ Live from 30123 — Cassville, GA

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Local time: —

Where 30123 is

This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 30123
  • 🔢 Type 30123 into a pocket calculator and turn it upside down: EZIOE — not quite a word, sorry.
  • ➕ As a number, 30,123 = 3 × 3 × 3347. Its digits add up to 9, a total 375 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 111010110101011
  • 🏠 Its numerical neighbours: 30122 (Lithia Springs, GA, 35 mi away) and 30124 (Cave Spring, GA, 30 mi away).
  • 🔄 Backwards, 30123 becomes 32103, which is not a ZIP code at all.
  • 👥 30 other ZIP codes are made of exactly the same digits (02133, 02331, 03231, 12033, 12303, 13032, …). The farthest-flung twin is 03231 in East Andover, NH, 947 miles away.
  • 🧭 Farther south than 77% of all ZIP codes, and farther east than 57%.
  • 🎯849 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 30123 and you would come out at 34.24°S, 95.15°E — 1,207 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 27m of daylight. Shortest: 9h 52m.
🌙 The sky over 30123 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments4This ZIP4
Employees9This ZIP9
Annual payroll$319,000This ZIP$319,000

Land area

ZIP codes near 30123

ZIPCityDistance
30121 Cartersville, GA 4.5 mi
30120 Cartersville, GA 4.8 mi
30184 White, GA 6.0 mi
30145 Kingston, GA 8.0 mi
30103 Adairsville, GA 9.3 mi
30137 Emerson, GA 9.9 mi
30171 Rydal, GA 10.6 mi
30178 Taylorsville, GA 12.5 mi
30102 Acworth, GA 15.1 mi
30139 Fairmount, GA 15.3 mi

Find every ZIP code within 10 miles of 30123 →

Questions about this ZIP code

Where is ZIP code 30123?

30123 is in Cassville, Georgia, in Bartow County, part of the Atlanta-Sandy Springs-Roswell, GA metropolitan area. Its published point location is 34.2442, -84.8457.

What county is 30123 in?

30123 lies in Bartow County.

What time zone is 30123 in?

30123 uses America/New_York.

What ZIP codes are near 30123?

The closest are 30121 (4.5 mi), 30120 (4.8 mi), 30184 (6 mi), 30145 (8 mi) and 30103 (9.3 mi).

Is 30123 a PO Box ZIP code?

Possibly. The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

Download or cite

Cite this page

zipcodes.pro. “30123 ZIP Code — Cassville, Georgia (Bartow County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/30123

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/30123.json

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