Official results for the 1989 Nagaland Legislative Assembly election. INC won the most seats with 36 out of 60.
Total seats: 60. Majority mark: 30.
| Party | Seats | Vote Share |
|---|---|---|
| INC | 36 | 51.4% |
| NPC | 24 | 41.6% |
| NPP | 0 | 2.8% |
| IND | 0 | 4.2% |
| Constituency | Winner | Party | Margin % |
|---|---|---|---|
| ABOI | NYEIWANG | INC | 1.1% |
| AGHUNATO | PUKHAYI | INC | 8.0% |
| AKULUTO | KHETO | INC | 2.7% |
| ALONGTAKI | TIAMEREN AIER | INC | 11.1% |
| ANGETYONGPANG | SHRI: S. LIMA | INC | 19.4% |
| AONGLENDEN | NUNGSHIZENBA | INC | 85.1% |
| ARKAKONG | JONGPONGCHITEN | INC | 14.9% |
| ATOIZU | K.L.CHISHI | NPC | 3.0% |
| BHANDARI | E.THUNGJAMO EZUNG | INC | 9.5% |
| CHAZOUBA | MELHUPRA VERO | INC | 1.1% |
| CHIZAMI | KEWEZU | NPC | 1.9% |
| DIMAPUR-I | I. VIKHESHE | INC | 38.8% |
| DIMAPUR-II | S.I JAMIR | INC | 63.8% |
| DIMAPUR-III | SHRI: KIHOTO HOLLON | NPC | 6.2% |
| GHASPANI-I | KHEKIHO ZHIMOMI | NPC | 5.5% |
| GHASPANI-II | L. HEKIYE SEMA | INC | 16.6% |
| IMPUR | SHRI. T. CHUBA | INC | 4.2% |
| JANGPETKONG | SHRI: CHUBATEMJEN | INC | 7.9% |
| KOHIMA TOWN | K. V. KEDITSU | NPC | 2.2% |
| KORIDANG | NOKZENKETBA | INC | 7.2% |
| LONGKHIM CHARE | S.K. SANGTAM | INC | 14.5% |
| LONGLENG | S. BUKCHEM | NPC | 10.8% |
| MELURI | KHUOSATHO | INC | 7.4% |
| MOKA | K. KIKO KONYAK | INC | 23.0% |
| MOKOKCHUNG TOWN | S.C.Jamir | INC | 66.1% |
| MON TOWN | SHRI: S. YOKTEN | NPC | 0.6% |
| MONGOYA | N. I. JAMIR | INC | 29.1% |
| NOKLAK | SEDEM | INC | 1.1% |
| NOKSEN | C. CHONGSHEN CHANG | INC | 72.3% |
| NORTHERN ANGAMI-I | TSEIVILIE MIACHIEO | INC | 12.7% |
| NORTHERN ANGAMI-II | Neiphiu Rio | INC | 3.6% |
| PEREN | BANGDI LHEILUNG | NPC | 8.8% |
| PFUTSERO | THENUCHO | NPC | 1.2% |
| PHEK | SHRI: ZACHILHU VADEO | INC | 10.8% |
| PHOMCHING | K Konngam Konyak | INC | 73.5% |
| PUGHOBOTO | JOSHUA SUMI | NPC | 5.4% |
| PUNGRO KIPHIRE | ROGHRONG | INC | 0.2% |
| SANIS | THOMAS NGULLIE | INC | 4.2% |
| SATAKHA | HOKHETO | INC | 4.8% |
| SEYOCHUNG SITIMI | SETHRICHO SHIHOTE | INC | 11.0% |
| SHAMATOR CHESSORE | K. YAMUKAM | NPC | 9.8% |
| SOUTHERN ANGAMI-I | SHRI: MAVIL KHIEYA | INC | 6.0% |
| SOUTHERN ANGAMI-II | VIZADEL | NPC | 1.9% |
| SURUHOTO | SHRI: KHUKIVI | NPC | 11.0% |
| TAMLU | PANGJAK S. PHOM | NPC | 5.0% |
| TAPI | NOKE WANGNAO | NPC | 3.5% |
| TEHOK | SHRI: NOKLEM | INC | 4.8% |
| TENNING | Tarie Zeliang | NPC | 7.8% |
| THONOKNYU | KHONGO | NPC | 4.4% |
| TIZIT | YEANGPHONG | NPC | 8.3% |
| TOBU | NYAKBA KONYAK | NPC | 29.8% |
| TSEMINYU | SHRI: KHASU KATH | NPC | 6.8% |
| TUENSANG SADAR-I | Toyang Chang | INC | 19.3% |
| TUENSANG SADAR-II | SHRI: A. LAKIUMONG | NPC | 11.8% |
| TULI | TSUKNUNGPENZU | INC | 1.3% |
| TYUI | T.A. NGULLIE | INC | 10.2% |
| WAKCHING | CHINGWANG | INC | 0.5% |
| WESTERN ANGAMI | N.T. NAKHRO | NPC | 8.5% |
| WOKHA | DR. T. MYINGTHUNGO LOTHA | NPC | 4.6% |
| ZUNHEBOTO | SHRI: TOKHEHO | NPC | 0.3% |