2026 Election: NIDA Poll reveals Bhumjaithai Party ranks first with 140-150 seats, while Prachachon Party comes second with 125-135 seats. Pheu Thai ranks third, Democrat Party fourth, and Kla Tham Party fifth.
On 8 February 2026, the NIDA Poll Center of the National Institute of Development Administration (NIDA) forecasted the 2026 House of Representatives election results using two methods: 1) data collection via telephone interviews.
The survey was conducted from 31 January to February 2026 among citizens aged 15 and over with voting rights, distributed across all regions, education levels, occupations, and income nationwide, totaling 3,000 sample units. The sampling used probability sampling from NIDA Poll's Master Sample database through multistage sampling, with a margin of error no greater than 0.05 at a 97.0% confidence level; and 2) media analysis and political feasibility assessment using poll results to predict the total number of seats—both constituency and party-list—for each political party.
When asked which political party they would choose for party-list seats if the election were held today,
Rank 1: Prachachon Party 37.17% expected to gain 32-37 party-list seats.
Rank 2: Bhumjaithai Party 19.27%, expected to gain 18-19 party-list seats.
Rank 3: Pheu Thai Party 18.03%, expected to gain 17-18 party-list seats.
Rank 4: Democrat Party 13.90%, expected to gain 12-13 party-list seats.
Rank 5: Economic Party 3.98%, expected to gain 1-3 party-list seats.
Rank 6: Ruam Thai Sang Chart Party 1.80%, expected to gain 1 party-list seat.
Rank 7: Kla Tham Party 1.20%, expected to gain 1 party-list seat.
Rank 8: Thai Sang Thai Party, Thai Pakdee Party, Palang Pracharath Party, and others combined 4.65%, expected to gain 8-19 party-list seats.
Predicted total seats including both constituency and party-list for each political party.
Rank 1: Bhumjaithai Party Projected to secure 140-150 total seats (constituency plus party-list).
Rank 2: Prachachon Party projected to gain 125-135 total seats.
Rank 3: Pheu Thai Party projected to gain 110-120 total seats.
Rank 4: Democrat Party projected to gain 35-45 total seats.
Rank 5: Kla Tham Party projected to gain 35-45 total seats.
Rank 6: Palang Pracharath Party, Thai Ruam Palang Party, Prachachat Party, Economic Party, Ruam Thai Sang Chart Party, Thai Sang Thai Party, Thai Pakdee Party, and others projected to gain no more than 55 total seats.