Tennessee ZIP codes
Tennessee holds 785 ZIP codes between 37010 and 38589. The tables rank the places and counties with the most codes; the guide below decodes the numbering.
Places with the most ZIP codes in Tennessee
| Place | ZIP codes |
|---|---|
| Memphis | 61 |
| Nashville | 39 |
| Knoxville | 31 |
| Chattanooga | 20 |
| Murfreesboro | 7 |
| Jackson | 6 |
| Kingsport | 6 |
| Johnson City | 6 |
| Cleveland | 5 |
| Crossville | 5 |
| Clarksville | 5 |
| Cookeville | 5 |
| Franklin | 5 |
| Maryville | 4 |
| Morristown | 4 |
| Millington | 4 |
| Shelbyville | 3 |
| Greeneville | 3 |
| Sevierville | 3 |
| Cordova | 3 |
Tennessee counties by ZIP count
| County | ZIP codes |
|---|---|
| Shelby | 77 |
| Davidson | 49 |
| Knox | 35 |
| Hamilton | 33 |
| Rutherford | 16 |
| Carroll | 13 |
| Madison | 13 |
| Sullivan | 13 |
| Claiborne | 12 |
| Gibson | 12 |
Reading a Tennessee ZIP code
Tennessee holds 785 ZIP codes between 37010 and 38589, spread over 95 counties. Memphis leads the state with 61 codes, ahead of Nashville with 39. Every code here opens with the digit 3: that opening number is the national postal region Tennessee belongs to, the next two digits name the sectional center that sorts the mail, and the final two point to the local office. A ZIP+4 suffix narrows delivery to a block face. Boundaries follow carrier routes rather than city limits, which is why Memphis spreads across 61 codes while some rural codes cross county lines.
Source: GeoNames postal dataset (CC BY 4.0), snapshot of 2026-07-09. Counts cover standard delivery ZIPs listed for Tennessee; unique and PO box codes may add to these totals.
Last updated: · Methodology and sources