| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 951 | Kalyanpur Haraulia | Birihma Bazar SO | 📍 843127 | Baruraj (Motipur) | Post Office - PO |
| 952 | Kalyanpur urf BishunpurKalyan | Harkhauli BO | 📍 843321 | Gaighat | Branch Post Office |
| 953 | Kamal Chak urf Chaku Chhapra | Gidha SO | 📍 843106 | Saraiya | Post Office - PO |
| 954 | Kamalpur Bithraul | K.Bithraul BO | 📍 843111 | Baruraj (Motipur) | Branch Post Office |
| 955 | Kamalpura | Kamalpura BO | 📍 843101 | Paroo | Branch Post Office |
| 956 | Kamarthu | Kamarthu BO | 📍 843118 | Gaighat | Branch Post Office |
| 957 | Kamla Balia | Sanathi BO | 📍 843103 | Bochaha | Branch Post Office |
| 958 | Kampani Bagh | Muzaffarpur HO | 📍 842001 | Musahri | Head Post Office - H |
| 959 | Kamtaul Anant | Anant Kamtaul BO | 📍 844120 | Kurhani | Branch Post Office |
| 960 | Kamtaul Ghazi | Anant Kamtaul BO | 📍 844120 | Kurhani | Branch Post Office |
| 961 | Kamtaul Jagdish | Anant Kamtaul BO | 📍 844120 | Kurhani | Branch Post Office |
| 962 | Kamtaul Muzaffarpur | Anant Kamtaul BO | 📍 844120 | Kurhani | Branch Post Office |
| 963 | Kan Maniari | Silout SO | 📍 843119 | Sakra | Post Office - PO |
| 964 | Kanahauli Bishundat | Ramna SO Muzaffarpur | 📍 842002 | Musahri | Post Office - PO |
| 965 | Kanhara | Kanhara BO | 📍 843118 | Bochaha | Branch Post Office |
| 966 | Kanhauli Azara | Ramna SO Muzaffarpur | 📍 842002 | Musahri | Post Office - PO |
| 967 | Kanhauli Balirampur | Fatehabad BO | 📍 843107 | Paroo | Branch Post Office |
| 968 | Kanhauli Balirampur | Paroo SO | 📍 843112 | Paroo | Post Office - PO |
| 969 | Kanta Pirauchha | Sarfuddinpur SO | 📍 843118 | Gaighat | Post Office - PO |
| 970 | Kanta Pirauchha | K.Pirochha BO | 📍 847107 | Gaighat | Branch Post Office |
| 971 | Kanti | Kanti SO | 📍 843109 | Kanti | Post Office - PO |
| 972 | Kanti Khurd | Kanti SO | 📍 843109 | Kanti | Post Office - PO |
| 973 | Kanti T P S | Kanti T.P.S. SO | 📍 843130 | Kanti | Branch Post Office |
| 974 | Kanwa | Gaus Nagar BO | 📍 843117 | Kanti | Branch Post Office |
| 975 | Karaila | Shrikant BO | 📍 843115 | Bandra | Branch Post Office |
| 976 | Karam Chand Balra | Kurhani SO | 📍 844120 | Kurhani | Post Office - PO |
| 977 | Karamwari | Karamwari BO | 📍 843107 | Paroo | Branch Post Office |
| 978 | Karamwari | Sagahari BO | 📍 843128 | Minapur | Branch Post Office |
| 979 | Karanpur | Bochaha SO | 📍 843103 | Bochaha | Post Office - PO |
| 980 | Karanpura | Laloo Chapra BO | 📍 843126 | Paroo | Branch Post Office |
| 981 | Karchaulia | Chatursi BO | 📍 843128 | Minapur | Branch Post Office |
| 982 | Karhara | Saraiya Factory SO | 📍 843126 | Saraiya | Post Office - PO |
| 983 | Karhatti | Hanswara BO | 📍 843116 | Aurai | Branch Post Office |
| 984 | Karmania | Sanathi BO | 📍 843103 | Bochaha | Branch Post Office |
| 985 | Karnaul Chaturbhuj | Kurnowl SO | 📍 843125 | Sahebganj | Post Office - PO |
| 986 | Karnaul Nilkanth | Kurnowl SO | 📍 843125 | Sahebganj | Post Office - PO |
| 987 | Kasipur urf Rampur | Sarfuddinpur SO | 📍 843118 | Bochaha | Post Office - PO |
| 988 | Katai | Ufrauli BO | 📍 843360 | Katra | Branch Post Office |
| 989 | Kataro | Chhap BO | 📍 843107 | Paroo | Branch Post Office |
| 990 | Katha urf Chhapra Husain | S.Barkagaon BO | 📍 843109 | Marwan | Branch Post Office |
| 991 | Kathaia | Kathaiya SO | 📍 843124 | Baruraj (Motipur) | Post Office - PO |
| 992 | Kathauli | M.Badal BO | 📍 843119 | Dholi (Moraul) | Branch Post Office |
| 993 | Katra | Katra SO Muzaffarpur | 📍 843321 | Katra | Post Office - PO |
| 994 | Kawalpura | Kamalpura BO | 📍 843101 | Paroo | Branch Post Office |
| 995 | Keotas urf Keotsa | Sarfuddinpur SO | 📍 843118 | Gaighat | Post Office - PO |
| 996 | Keotas urf Keotsa | Keotsa Baruari SO | 📍 847107 | Gaighat | Post Office - PO |
| 997 | Keotsa | Munni Bangari BO | 📍 843115 | Bandra | Branch Post Office |
| 998 | Keotsa | Sakrichandpusa BO | 📍 848125 | Bandra | Branch Post Office |
| 999 | Kerma | Kerma BO | 📍 844127 | Kurhani | Branch Post Office |
| 1000 | Kerwan Dih | Turki SO | 📍 844127 | Kurhani | Post Office - PO |