The Western Region of Tamilnadu Postal Circle has its headquarters at Coimbatore. It was formed on 2nd April, 1979. The Region was previously known as Coimbatore Postal Region and the name was changed as Western Region, Tamilnadu Circle with effect from 15th March, 1990
LIST OF SPEED POST CENTRES IN WESTERN REGION
| .No | Name of the PO | PINCODE | Phone Number | Transaction time |
| 1 | Ambur SO | 635802 | 04174-242776 | 1000-1900 |
| 2 | Aruvankadu SO | 643202 | 0423-2234148 | 0900-1600 |
| 3 | Avanashi | 641654 | 04296-273158 | 0730-1130;1400-1600 |
| 4 | Bhavani HPO | 638301 | 04256-233035 | 0900-2000 |
| 5 | Charringcross SO | 643001 | 0423-2444160 | 0930-1700 |
| 6 | Coimbatore HO | 641001 | 0422-2397203 | 1000-2100 |
| 7 | Coonoor Bazaar | 643102 | 0423-2232948 | 0900-1700 |
| 8 | Coonoor HO | 643101 | 0423-2232448 | 0900-1630 |
| 9 | Coonoor RS | 643102 | 0423-2206748 | 0900-1630 |
| 10 | Dharapuram HO | 638656 | 04258-220278 | 0900-1700 |
| 11 | Dharmauri HO | 636701 | 04342-266885 | 1000-2000 |
| 12 | Edayankattu valasu | 638009 | nil | 0930-1530 |
| 13 | Erode Collectorate | 638011 | 0424-2264993 | 0700-1030;1400-1630 |
| 14 | Erode HPO | 638001 | 0424-2259111 | 0800-2000 |
| 15 | Erode Railway Colony | 638002 | 0424-2282599 | 0645-1015;1400-1630 |
| 16 | Ganesapuram | 637001 | 04286-221180 | 0930-1600 |
| 17 | Gobi HPO | 638452 | 04285-241028 | 1000-1600 |
| 18 | Gudalur Bazaar | 643211 | nil | 0830-1300 |
| 19 | Gudiyattam HO | 632602 | 04171-220990 | 1000-1900 |
| 20 | Harur SO | 636903 | 04346-222022 | 0700-1100;1300-1600 |
| 21 | Hosur Indl. Complex | 635126 | 04344-276653 | 0900-1700 |
| 22 | Hosur SO | 635109 | 04344-244380 | 0900-1700 |
| 23 | Idappadi SO | 637101 | 04283-222221 | 0730-11.30;1230-1430 |
| 24 | Iduvampalayam | 641687 | 0421-2261680 | 0800-1600 |
| 25 | Kangayam | 638701 | 04257-230640 | 0730-1130;1400-1600 |
| 26 | Karungalpalayam | 638003 | 0424-2210495 | 0900-1900 |
| 27 | Kodumudi | 638151 | 04204-222783 | 0730-1030;1300-1600 |
| 28 | Komarapalayam SO | 638183 | 04288-260500 | 0730-1800 |
| 29 | Kotagiri | 643217 | 04266-271524 | 0900-1630 |
| 30 | Krishnagiri HO | 635001 | 04343-236816 | 1000-1800 |
| 31 | Madathukulam | 642113 | 04252-252230 | 0900-1430 |
| 32 | Mahalinapuram | 642002 | nil | 0900-1430 |
| 33 | Makkinaickenpatti | 642003 | nil | 0900-1630 |
| 34 | Mettupalayam HO | 641301 | 04254 222115 | 0900-1700 |
| 35 | Metturdam RS SO | 636402 | 04298-222330 | 0900-1630 |
| 36 | Metturdam SO | 636401 | 04298-244080 | 0930-1630 |
| 37 | Modakurichi | 638104 | 0424-2500280 | 0730-1100;1330-1600 |
| 38 | Namakkal HO | 637001 | 04286-221251 | 1000-2000 |
| 39 | Nambiyur | 638458 | 04285-267432 | 0830-1430 |
| 40 | Oomerabad SO | 635808 | 04171-258254 | 0800-1700 |
| 41 | Palacode | 636808 | 04348-222030 | 0800-1200;1400-1600 |
| 42 | Pallipalayam | 638006 | 04288-242770 | 0800-1200 & 1400-1600 |
| 43 | Pernambut SO | 635810 | 04171-232482 | 0800-1700 |
| 44 | Perundurai | 638052 | 04294-220530 | 0700-1030 & 1400-1630 |
| 45 | Pollachi HO | 642001 | 04259-224845 | 1000- 2030 |
| 46 | Pulankinar | 642122 | 04252-267228 | 0900-1430 |
| 47 | Rasipuram SO | 637408 | 04287-222951 | 0930-1730 |
| 48 | Salem HO | 636001 | 0427-2267399 | 0800-2100 |
| 49 | Sankari Drug | 637301 | 04283-240320 | 0900-1500 |
| 50 | Sathyamangalam | 638401 | 04295-220208 | 0730-1130;1400-1600 |
| 51 | Sirumugai | 641302 | 04254-254944 | 0900-1700 |
| 52 | Sivagiri | 638109 | 04204-241012 | 0730-1100 & 1300-1530 |
| 53 | Speed Post Business Office,Hosur | 635126 | 04344-275075 | 1000-1700 |
| 54 | Sulur | 641402 | 0422 2682389 | 0900-1700 |
| 55 | Suramangalam HPO |