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/TN/SMALLEST-AREA

Smallest ZIP Codes in Tennessee by Land Area

What this measures. Land area of the Census tabulation area, smallest first. These are almost always dense urban ZIP codes covering a few city blocks. Source: Census Gazetteer, data release 2026-10-12.

# ZIP City County Land area
1 38503 Cookeville Putnam 0.00 sq mi
2 38550 Campaign Warren 0.00 sq mi
3 37929 Knoxville Knox 0.00 sq mi
4 37238 Nashville Davidson 0.01 sq mi
5 37450 Chattanooga Hamilton 0.01 sq mi
6 38077 Wynnburg Lake 0.02 sq mi
7 38505 Cookeville Putnam 0.05 sq mi
8 38007 Bogota Dyer 0.06 sq mi
9 37232 Nashville Davidson 0.07 sq mi
10 38046 La Grange Fayette 0.09 sq mi
11 38152 Memphis Shelby 0.10 sq mi
12 38338 Gibson Gibson 0.10 sq mi
13 37682 Milligan College Carter 0.10 sq mi
14 38389 Yorkville Gibson 0.11 sq mi
15 37315 Collegedale Hamilton 0.13 sq mi
16 38029 Ellendale Shelby 0.13 sq mi
17 37394 Viola Warren 0.14 sq mi
18 37383 Sewanee Franklin 0.15 sq mi
19 37316 Conasauga Polk 0.15 sq mi
20 37219 Nashville Davidson 0.22 sq mi
21 38131 Memphis Shelby 0.23 sq mi
22 38036 Gallaway Fayette 0.23 sq mi
23 38455 Elkton Giles 0.28 sq mi
24 38054 Millington Shelby 0.31 sq mi
25 37201 Nashville Davidson 0.32 sq mi
26 38365 Pickwick Dam Hardin 0.33 sq mi
27 38578 Pleasant Hill Cumberland 0.33 sq mi
28 37165 Slayden Dickson 0.34 sq mi
29 37351 Lupton City Hamilton 0.44 sq mi
30 37902 Knoxville Knox 0.44 sq mi
31 37614 Johnson City Washington 0.49 sq mi
32 38050 Maury City Crockett 0.58 sq mi
33 38254 Samburg Obion 0.60 sq mi
34 37132 Murfreesboro Rutherford 0.62 sq mi
35 37719 Coalfield Morgan 0.65 sq mi
36 38021 Crockett Mills Crockett 0.67 sq mi
37 37213 Nashville Davidson 0.71 sq mi
38 38132 Memphis Shelby 0.78 sq mi
39 37733 Rugby Morgan 0.81 sq mi
40 37402 Chattanooga Hamilton 1.29 sq mi
41 37350 Lookout Mountain Hamilton 1.34 sq mi
42 38235 Mc Lemoresville Carroll 1.37 sq mi
43 37916 Knoxville Knox 1.41 sq mi
44 37228 Nashville Davidson 1.46 sq mi
45 37730 Eagan Claiborne 1.51 sq mi
46 38070 Tigrett Dyer 1.69 sq mi
47 38105 Memphis Shelby 1.69 sq mi
48 37403 Chattanooga Hamilton 1.71 sq mi
49 37326 Ducktown Polk 1.77 sq mi
50 38126 Memphis Shelby 1.86 sq mi

Showing the top 50 of 636 ZIP codes in Tennessee that have this figure and meet the threshold above. 38503 ranks 1st at 0.00 sq mi, against 1.86 sq mi in 50th place.

Other rankings for Tennessee

Cite this page

zipcodes.pro. “Smallest ZIP Codes in Tennessee by Land Area.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/tn/smallest-area

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