| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 301 | Kamala | Kamala Bagan SO | 📍 734426 | Naxalbari | Post Office - PO |
| 302 | Kamala | Naksalbari SO | 📍 734429 | Naxalbari | Post Office - PO |
| 303 | Kamala | Sahabad SO | 📍 734431 | Naxalbari | Post Office - PO |
| 304 | Kamala Barir Chhat | Matigara SO | 📍 734010 | Matigara | Post Office - PO |
| 305 | Kamalpur | Bagdogra SO | 📍 734014 | Naxalbari | Post Office - PO |
| 306 | Kambal Tea Garden | Singritam BO | 📍 734213 | Rangli Rangliot | Branch Post Office |
| 307 | Kanke Bong Khasmahal | Pedong SO | 📍 734311 | Kalimpong -I | Post Office - PO |
| 308 | Kankibong | Kolbong BO | 📍 734201 | Darjeeling Pulbazar | Branch Post Office |
| 309 | Kantibhita | Kantivitta BO | 📍 734434 | Phansidewa | Branch Post Office |
| 310 | Kanyan | Kurseong SO | 📍 734203 | Kurseong | Branch Post Office |
| 311 | Karaibari | Champasari BO | 📍 734003 | Matigara | Branch Post Office |
| 312 | Karbia Tea Garden | Kurseong SO | 📍 734203 | Kurseong | Branch Post Office |
| 313 | Karmi | Kolbong BO | 📍 734201 | Darjeeling Pulbazar | Branch Post Office |
| 314 | Kashiram | Phansidewa SO | 📍 734434 | Phansidewa | Post Office - PO |
| 315 | Kashone Khasmahal | Munsong SO | 📍 734315 | Kalimpong - II | Post Office - PO |
| 316 | Katia | Khoribari SO | 📍 734427 | Kharibari | Post Office - PO |
| 317 | Kauakhali | Sushrut Nagar SO | 📍 734012 | Matigara | Post Office - PO |
| 318 | Kawakhari | Sushrut Nagar SO | 📍 734012 | Matigara | Post Office - PO |
| 319 | Kelabari | Khoribari SO | 📍 734427 | Kharibari | Post Office - PO |
| 320 | Ketugabur | Naksalbari SO | 📍 734429 | Naxalbari | Post Office - PO |
| 321 | Khampong Forest | Gitdubling BO | 📍 734314 | Kalimpong - II | Branch Post Office |
| 322 | Khaprail | Sukna SO | 📍 734009 | Matigara | Post Office - PO |
| 323 | Kharia Busty | St.Mary's Hill SO | 📍 734220 | Kurseong | Branch Post Office |
| 324 | Kharibari | Adhikari BO | 📍 734427 | Kharibari | Branch Post Office |
| 325 | Kharibari | Khoribari SO | 📍 734427 | Kharibari | Post Office - PO |
| 326 | Khok Long Chaat | Matigara SO | 📍 734010 | Matigara | Post Office - PO |
| 327 | Khoklong | Matigara SO | 📍 734010 | Matigara | Post Office - PO |
| 328 | Khopalashi | Matigara SO | 📍 734010 | Kharibari | Post Office - PO |
| 329 | Khopalasi | Matigara SO | 📍 734010 | Matigara | Post Office - PO |
| 330 | Khunia Pukhari | Khoribari SO | 📍 734427 | Kharibari | Post Office - PO |
| 331 | Kilaram | Naksalbari SO | 📍 734429 | Naxalbari | Post Office - PO |
| 332 | Kishordoba | Khoribari SO | 📍 734427 | Kharibari | Post Office - PO |
| 333 | Kolbong | Kolbong BO | 📍 734201 | Darjeeling Pulbazar | Branch Post Office |
| 334 | Kolbong Forest | Bar Dara BO | 📍 734312 | Kalimpong - II | Branch Post Office |
| 335 | Kolbong Khasmahal | Tinchuley BO | 📍 734222 | Rangli Rangliot | Branch Post Office |
| 336 | Krishnapur Tea Garden | Phansidewa SO | 📍 734434 | Phansidewa | Post Office - PO |
| 337 | Kuchia | Phansidewa SO | 📍 734434 | Phansidewa | Post Office - PO |
| 338 | Kumai Forest | Chalsa SO | 📍 735206 | Gorubathan | Post Office - PO |
| 339 | Kumai Khasmahal | Chalsa SO | 📍 735206 | Gorubathan | Post Office - PO |
| 340 | Kumai Tea Garden | Chalsa SO | 📍 735206 | Gorubathan | Post Office - PO |
| 341 | Kungarpur | Khoribari SO | 📍 734427 | Kharibari | Post Office - PO |
| 342 | Kurseong | Dumaram Busty SO | 📍 734203 | Kurseong | Post Office - PO |
| 343 | Kurseong | Kurseong SO | 📍 734203 | Kurseong | Branch Post Office |
| 344 | Kurseong | Dowhill SO | 📍 734204 | Kurseong | Post Office - PO |
| 345 | Labda Khasmahal | Mungpoo SO | 📍 734313 | Rangli Rangliot | Post Office - PO |
| 346 | Lachka | Matigara SO | 📍 734010 | Matigara | Post Office - PO |
| 347 | Lachubhita | Phansidewa SO | 📍 734434 | Phansidewa | Post Office - PO |
| 348 | Ladam Khasmahal | Kagay Bazar BO | 📍 734311 | Kalimpong - II | Branch Post Office |
| 349 | Lahugaon | Phansidewa SO | 📍 734434 | Phansidewa | Post Office - PO |
| 350 | Lakshman | Naksalbari SO | 📍 734429 | Naxalbari | Post Office - PO |