| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 851 | Nahrar | Baikunthpur BO | 📍 802123 | Itarhi | Branch Post Office |
| 852 | Nainijor | Nainijor BO | 📍 802112 | Barhampur | Branch Post Office |
| 853 | Nainijor Diara Pachhim Ditto | Barki Nainijor BO | 📍 802112 | Chakki | Branch Post Office |
| 854 | NainijorDiaraPachhimTurkau | Balua BO | 📍 802130 | Chakki | Branch Post Office |
| 855 | Nandan | Nandan BO | 📍 802119 | Dumraon | Branch Post Office |
| 856 | Nandpur | Balua BO | 📍 802130 | Barhampur | Branch Post Office |
| 857 | Naniaura | Rajpur BO | 📍 802131 | Rajpur | Branch Post Office |
| 858 | Narainapur | Chausa SO Buxar | 📍 802114 | Chausa | Post Office - PO |
| 859 | Narayanpur | Sonbarsa BO | 📍 802118 | Buxar | Branch Post Office |
| 860 | Narayanpur | Itarhi SO | 📍 802123 | Nawanagar | Post Office - PO |
| 861 | Narayanpur | Mahila BO | 📍 802123 | Itarhi | Branch Post Office |
| 862 | Narayanpur | Banni BO | 📍 802128 | Rajpur | Branch Post Office |
| 863 | Narayanpur | Sahiyar BO | 📍 802131 | Simri | Branch Post Office |
| 864 | Narayanpur Bisen | Barka Singhanpura BO | 📍 802120 | Simri | Branch Post Office |
| 865 | Narbatpur | Chausa SO Buxar | 📍 802114 | Chausa | Post Office - PO |
| 866 | Narbatpur Taufir Unsurveyed | Banarpur BO | 📍 802114 | Chausa | Branch Post Office |
| 867 | Narhan Dih | Sikraul BO | 📍 802129 | Nawanagar | Branch Post Office |
| 868 | Nat | Umarpur Diar BO | 📍 802118 | Buxar | Branch Post Office |
| 869 | Nathpur | Itarhi SO | 📍 802123 | Itarhi | Post Office - PO |
| 870 | Naudiha | Nandan BO | 📍 802119 | Dumraon | Branch Post Office |
| 871 | Nawagawan | Pulia BO | 📍 802102 | Buxar | Branch Post Office |
| 872 | Nawanagar | Atimi BO | 📍 802129 | Nawanagar | Branch Post Office |
| 873 | Nawanagar | Basaon Kalan BO | 📍 802129 | Nawanagar | Branch Post Office |
| 874 | Nawanagar | Belaon BO | 📍 802129 | Nawanagar | Branch Post Office |
| 875 | Nawanagar | Bisikala BO | 📍 802129 | Nawanagar | Branch Post Office |
| 876 | Nawanagar | Dhanbakhra BO | 📍 802129 | Nawanagar | Branch Post Office |
| 877 | Nawanagar | Girdharpur BO | 📍 802129 | Nawanagar | Branch Post Office |
| 878 | Nawanagar | Jigna BO | 📍 802129 | Nawanagar | Branch Post Office |
| 879 | Nawanagar | Karsar BO | 📍 802129 | Nawanagar | Branch Post Office |
| 880 | Nawanagar | Nawanagar SO Buxar | 📍 802129 | Nawanagar | Post Office - PO |
| 881 | Nawanagar | Rupsagar BO | 📍 802129 | Nawanagar | Branch Post Office |
| 882 | Nawanagar | Sikraul BO | 📍 802129 | Nawanagar | Branch Post Office |
| 883 | Nawanagar | Nagwan BO | 📍 802129 | Nawanagar | Branch Post Office |
| 884 | Nawar | Dehari BO | 📍 802114 | Chausa | Branch Post Office |
| 885 | Nazirganj | Mathila BO | 📍 802126 | Dumraon | Branch Post Office |
| 886 | Nemauwa | Kharahatand BO | 📍 802120 | Simri | Branch Post Office |
| 887 | Nenuan | Nuaon BO | 📍 802111 | Dumraon | Branch Post Office |
| 888 | Newazipur | Khandricha BO | 📍 802126 | Nawanagar | Branch Post Office |
| 889 | Newazipur | Gangauli BO | 📍 802131 | Nawanagar | Branch Post Office |
| 890 | Neyazipur | Ekauna Dubauli BO | 📍 802131 | Simri | Branch Post Office |
| 891 | Neyazipur | Niazipur SO | 📍 802131 | Simri | Post Office - PO |
| 892 | Neyazipur | Rajpur BO | 📍 802131 | Simri | Branch Post Office |
| 893 | Neyazipur | Sahiyar BO | 📍 802131 | Simri | Branch Post Office |
| 894 | Neyazipur | Sheopur Diar BO | 📍 802131 | Simri | Branch Post Office |
| 895 | Nidhua | Pulia BO | 📍 802102 | Buxar | Branch Post Office |
| 896 | Nihalpur | Bikaram English BO | 📍 802117 | Itarhi | Branch Post Office |
| 897 | Nikhura | Dumari SO Buxar | 📍 802120 | Simri | Post Office - PO |
| 898 | Nikhura | Kasia BO | 📍 802126 | Dumraon | Branch Post Office |
| 899 | Nikris | Rampur BO | 📍 802114 | Chausa | Branch Post Office |
| 900 | Nimej | Nimej SO | 📍 802130 | Barhampur | Post Office - PO |