Official results for the 1980 Arunachal Pradesh Legislative Assembly election. PPA won the most seats with 13 out of 30.
Total seats: 30. Majority mark: 15.
| Party | Seats | Vote Share |
|---|---|---|
| PPA | 13 | 41.0% |
| INC | 13 | 42.6% |
| IND | 4 | 11.5% |
| INC(U) | 0 | 4.9% |
| Constituency | Winner | Party | Margin % |
|---|---|---|---|
| ALONG WEST | HEJAM PONGLAHAM | INC | 42.8% |
| BAMENG | TADAR TANG | INC | 5.8% |
| BASAR | WANGHLU WANGSHU | PPA | NaN% |
| BOMDILA | LOKAM TADO | INC | 15.2% |
| CHAYANG TAJO | TECHI TAKUR | INC | 4.0% |
| DAPORIJO | KHAPRISO KRONG | INC | 48.2% |
| DIRANG | SINAM DUSUSOW | PPA | 5.4% |
| DOIMUKH | PASANG WANGCHUK SONA | IND | 10.2% |
| DUMPORIJO | TENGAM NGEMU | INC | 6.9% |
| ITANAGAR | PUNJI MARA | INC | 11.7% |
| KALAKTANG | NYARI WELLI | PPA | 7.3% |
| KOLORIANG | TADE TACHO | IND | 24.8% |
| LIKABALI | L. WANGLAT | PPA | 12.3% |
| LIROMOBA | T.L.RAJ KUMAR | INC | 21.7% |
| LUMLA | KARMA WANGCHU | PPA | 39.3% |
| MUKTO | NIMA TSERING RUPA | INC | 28.6% |
| NACHO | AKEN LEGO | PPA | 21.7% |
| NYAPIN | GEGONG APANG | INC | 30.8% |
| PAKKE KESSANG | TADAK DULOM | INC | 16.4% |
| PALIN | TALO KADU | PPA | 26.8% |
| RAGA | SAMCHOM NGEMU | INC | 23.9% |
| SAGALEE | TALONG TAGGU | INC | 2.4% |
| SEPPA EAST | PADI YUBBE | IND | 0.6% |
| SEPPA WEST | BOA TAMO | PPA | 40.6% |
| TALI | ONYOK ROME | PPA | 25.1% |
| TALIHA | CHAU KHOUK MANPOONG | PPA | 6.0% |
| TAWANG | TSERING TASHI | PPA | 0.3% |
| THRIZINO-BURAGAON | KAMENGDOLO | IND | 0.6% |
| YACHULI | TUMPAKETE | PPA | 21.8% |
| ZIRO HAPOLI | TOMO RIBA | PPA | 5.3% |