Official results for the 1998 Nagaland Legislative Assembly election. INC won the most seats with 54 out of 60.
Total seats: 60. Majority mark: 30.
| Party | Seats | Vote Share |
|---|---|---|
| INC | 54 | 50.7% |
| IND | 7 | 49.3% |
| Constituency | Winner | Party | Margin % |
|---|---|---|---|
| ABOI | EYONG KONYAK | INC | 47.2% |
| AGHUNATO | TOKHEHO | INC | NaN% |
| AKULUTO | KAKHETO | INC | NaN% |
| ALONGTAKI | TONGPANG NUNGSHI | INC | NaN% |
| ANGETYONGPANG | T. SENTICHUBA | INC | NaN% |
| AONGLENDEN | S.C.Jamir | INC | NaN% |
| ARKAKONG | SHRI: IMTIYANGER | INC | NaN% |
| ATOIZU | DOSHEHE Y. SEMA | INC | NaN% |
| BHANDARI | YANTHUNGO PATTON | INC | NaN% |
| CHAZOUBA | SHRI: NUZOTA SWURO | INC | 18.1% |
| CHIZAMI | ZHOVEHU LOHE | INC | NaN% |
| DIMAPUR-I | I. VIKHESHE | INC | NaN% |
| DIMAPUR-II | S.I JAMIR | INC | NaN% |
| DIMAPUR-III | SHRI: ATOVI SUMI | INC | 70.6% |
| GHASPANI-I | DR. KANITO | INC | NaN% |
| GHASPANI-II | ROKONICHA | INC | NaN% |
| IMPUR | SHRI. T. CHUBA | INC | NaN% |
| JANGPETKONG | I.IMKONG | INC | NaN% |
| KOHIMA TOWN | SHRI: T. ABAO KIRE | IND | 2.6% |
| KORIDANG | SHRI: T. NOKYU LONGCHAR | INC | NaN% |
| LONGKHIM CHARE | S.K. SANGTAM | INC | NaN% |
| LONGLENG | SHAMI ANGH | IND | 2.1% |
| MELURI | KHUOSATHO | INC | 48.8% |
| MOKA | A NYAMNYEI KONYAK | INC | NaN% |
| MOKOKCHUNG TOWN | NUNGSHIZENBA | INC | NaN% |
| MON TOWN | SHRI: C. JOHN | IND | 2.5% |
| MONGOYA | T. IMTIMEREN JAMIR | INC | NaN% |
| NOKLAK | SEDEM | INC | NaN% |
| NOKSEN | H. Chuba Chang | INC | 38.8% |
| NORTHERN ANGAMI-I | SHURHOZELIE | INC | NaN% |
| NORTHERN ANGAMI-II | Neiphiu Rio | INC | NaN% |
| PEREN | NEIBA KRONU | INC | NaN% |
| PFUTSERO | KEWEKHAPE THERIE | INC | NaN% |
| PHEK | SHRI: ZACHILHU VADEO | INC | NaN% |
| PHOMCHING | K Konngam Konyak | INC | NaN% |
| PUGHOBOTO | JOSHUA SUMI | INC | NaN% |
| PUNGRO KIPHIRE | R.L. AKAMBA | INC | NaN% |
| SANIS | THOMAS NGULLIE | INC | NaN% |
| SATAKHA | G. KAITO AYE | INC | NaN% |
| SEYOCHUNG SITIMI | SETHRICHO SHIHOTE | INC | 3.7% |
| SHAMATOR CHESSORE | K. YAMUKAM | INC | NaN% |
| SOUTHERN ANGAMI-I | SHRI: MAVIL KHIEYA | IND | 9.3% |
| SOUTHERN ANGAMI-II | K.V. PUSA | INC | NaN% |
| SURUHOTO | KIYEZHE AYE | INC | NaN% |
| TAMLU | B. PHONGSHAK PHOM | INC | 12.2% |
| TAPI | BONGNAO | INC | NaN% |
| TEHOK | W. WANGYUH | INC | NaN% |
| TENNING | Tarie Zeliang | INC | NaN% |
| THONOKNYU | SHRI: S. SHINGNYU | INC | 5.7% |
| TIZIT | TINGKUP | INC | 2.1% |
| TOBU | SHEAKPONG KONYAK | INC | NaN% |
| TSEMINYU | NILLO | INC | NaN% |
| TUENSANG SADAR-I | P. CHUBA | IND | 14.6% |
| TUENSANG SADAR-II | KEJONG CHANG | INC | 4.4% |
| TULI | T. TALI | INC | NaN% |
| TYUI | T.C.K. LOTHA | INC | NaN% |
| WAKCHING | P. ENYEI | INC | NaN% |
| WESTERN ANGAMI | ASU KEYHO | IND | 15.3% |
| WOKHA | SHRI: JOHN LOTHA | INC | NaN% |
| ZUNHEBOTO | SHRI: KAKHEHO | IND | 36.2% |