Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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 — RANKINGS/GA/HIGHEST-DENSITY

Most Densely Populated ZIP Codes in Georgia

What this measures. People per square mile of land area. Source: Census American Community Survey and Gazetteer, data release 2026-10-12.

# ZIP City County People per sq mi
1 30332 Atlanta Fulton 28,522
2 30250 Lovejoy Clayton 20,931
3 30308 Atlanta Fulton 14,506
4 30363 Atlanta Fulton 14,263
5 30326 Atlanta Fulton 10,920
6 30309 Atlanta Fulton 9,815
7 30597 Dahlonega Lumpkin 9,329
8 30313 Atlanta Fulton 9,288
9 30609 Athens Clarke 8,803
10 30312 Atlanta Fulton 8,137
11 30021 Clarkston DeKalb 7,769
12 31207 Macon Bibb 7,585
13 30275 Sargent Coweta 7,438
14 31698 Valdosta Lowndes 7,307
15 30118 Carrollton Carroll 7,160
16 30303 Atlanta Fulton 6,555
17 30072 Pine Lake DeKalb 6,250
18 31401 Savannah Chatham 5,990
19 30324 Atlanta Fulton 5,506
20 30322 Atlanta DeKalb 5,375
21 30306 Atlanta Fulton 5,310
22 30314 Atlanta Fulton 5,115
23 30329 Atlanta DeKalb 4,976
24 30307 Atlanta DeKalb 4,774
25 30030 Decatur DeKalb 4,714
26 30319 Atlanta DeKalb 4,462
27 30317 Atlanta DeKalb 4,416
28 30346 Atlanta DeKalb 4,385
29 30305 Atlanta Fulton 4,327
30 30080 Smyrna Cobb 4,227
31 30079 Scottdale DeKalb 4,122
32 30044 Lawrenceville Gwinnett 4,087
33 30338 Atlanta DeKalb 4,012
34 30093 Norcross Gwinnett 3,867
35 30088 Stone Mountain DeKalb 3,729
36 30008 Marietta Cobb 3,725
37 30342 Atlanta Fulton 3,716
38 30340 Atlanta DeKalb 3,645
39 30341 Atlanta DeKalb 3,603
40 30339 Atlanta Cobb 3,584
41 30289 Turin Coweta 3,557
42 30033 Decatur DeKalb 3,545
43 30083 Stone Mountain DeKalb 3,512
44 31753 Funston Colquitt 3,500
45 30345 Atlanta DeKalb 3,462
46 30274 Riverdale Clayton 3,333
47 30092 Peachtree Corners Gwinnett 3,311
48 30067 Marietta Cobb 3,290
49 30310 Atlanta Fulton 3,165
50 30096 Duluth Gwinnett 3,155

Showing the top 50 of 751 ZIP codes in Georgia that have this figure . 30332 ranks 1st at 28,522, against 3,155 in 50th place.

Other rankings for Georgia

Cite this page

zipcodes.pro. “Most Densely Populated ZIP Codes in Georgia.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/ga/highest-density

Underlying data is public domain or openly licensed — sources, vintages and licences.