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Where 30111 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.
- 🔢 Type 30111 into a pocket calculator and turn it upside down: IIIOE — not quite a word, sorry.
- ➕ As a number, 30,111 = 3 × 10037. Its digits add up to 6, a total 90 other ZIP codes share.
- 💾In binary, the way a computer stores it:
111010110011111 - 🏠 Its numerical neighbours: 30110 (Bremen, GA, 28 mi away) and 30112 (Carrollton, GA, 30 mi away).
- 🔄 Backwards, 30111 becomes 11103 — and that is a real ZIP code: Astoria, NY, 759 miles away.
- 👥 8 other ZIP codes are made of exactly the same digits (03111, 10113, 10131, 10311, 11103, 13101, …). The farthest-flung twin is 03111 in Manchester, NH, 953 miles away.
- 🧭 Farther south than 80% of all ZIP codes, and farther east than 57%.
- 🎯873 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 30111 and you would come out at 33.83°S, 95.34°E — 1,195 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 24m of daylight. Shortest: 9h 54m.
- 📏 At 0.407 square miles of land, 30111 is bigger than 5% of ZIP codes — about 197 football fields.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 0 |
|---|---|
| Households | 0 |
| Housing units | 0 |
| Population density | 0.0 / sq mi |
Business and tax activity
| Business establishments | 3This ZIP3 |
|---|---|
| Employees | 5This ZIP5 |
| Annual payroll | $83,000This ZIP$83,000 |
Land area
| Land area | 0.41 sq miThis ZIP0.41 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Other place names in 30111
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 30111
| ZIP | City | Distance |
|---|---|---|
30106 | Austell, GA | 1.6 mi |
30081 | Smyrna, GA | 3.7 mi |
30127 | Powder Springs, GA | 3.9 mi |
30122 | Lithia Springs, GA | 4.6 mi |
30168 | Austell, GA | 5.1 mi |
30126 | Mableton, GA | 5.9 mi |
30008 | Marietta, GA | 6.0 mi |
30141 | Hiram, GA | 6.9 mi |
30082 | Smyrna, GA | 7.0 mi |
30154 | Douglasville, GA | 7.7 mi |
Find every ZIP code within 10 miles of 30111 →
Questions about this ZIP code
Where is ZIP code 30111?
30111 is in Clarkdale, Georgia, in Cobb County, part of the Atlanta-Sandy Springs-Roswell, GA metropolitan area. Its published point location is 33.8318, -84.6550.
What county is 30111 in?
30111 lies in Cobb County.
What area code is 30111?
Clarkdale uses area codes 404, 770, 678, 470 and 943, from NANPA's telephone records.
What time zone is 30111 in?
30111 uses America/New_York.
How many people live in 30111?
About 0 people live in ZIP code 30111. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What ZIP codes are near 30111?
The closest are 30106 (1.6 mi), 30081 (3.7 mi), 30127 (3.9 mi), 30122 (4.6 mi) and 30168 (5.1 mi).
Is 30111 a PO Box ZIP code?
30111 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “30111 ZIP Code — Clarkdale, Georgia (Cobb County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/30111
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/30111.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.