Number of Constituency MPs for the 2026 Election: How Many MPs Does Each Province Have?

Revealing the number of constituency MPs for the 2026 election across Thailand, totaling 400 constituencies, and showing how many MPs each province will have, including which provinces have the fewest and the most MPs.

Today (27 Dec 2025) marks the first day for candidate registration for the constituency-based members of parliament (MPs) election nationwide, covering 76 provinces plus Bangkok. Political parties have actively come to register and draw their candidate numbers with enthusiasm.

The calculation method to determine the number of constituency MPs is as follows: The total Thai population at the end of December 2024, totaling 64,953,661 people, is divided by the 400 constituency MPs, resulting in approximately 162,384 people per MP.

Next, the population of each province is divided by 162,384 to determine the ideal number of MPs per province, summing to 362 MPs. The remaining 38 MPs are allocated to provinces with the largest fractional remainders from the initial division, ranked from highest to lowest, with each of these 38 provinces receiving one additional MP seat.

For the 2026 election, each province's number of constituency MPs is as follows:

1 MP seat (4 provinces)

1. Trat

2. Ranong

3. Samut Songkhram

4. Sing Buri

2 MP seats (10 provinces)

1. Chai Nat

2. Nakhon Nayok

3. Phang Nga

4. Mukdahan

5. Mae Hong Son

6. Lamphun

7. Satun

8. Ang Thong

9. Amnat Charoen

10. Uthai Thani

3 MP seats (20 provinces)

1. Krabi

2. Chanthaburi

3. Chumphon

4. Tak

5. Nan

6. Bueng Kan

7. Prachuap Khiri Khan

8. Prachinburi

9. Phayao

10. Phatthalung

11. Phichit

12. Phetchaburi

13. Phrae

14. Phuket

15. Yasothon

16. Yala

17. Sa Kaeo

18. Nong Khai

19. Nong Bua Lam Phu

20. Uttaradit

4 MP seats (10 provinces)

1. Kamphaeng Phet

2. Chachoengsao

3. Trang

4. Nakhon Phanom

5. Lopburi

6. Lampang

7. Loei

8. Samut Sakhon

9. Saraburi

10. Sukhothai

5 MP seats (8 provinces)

1. Kanchanaburi

2. Narathiwat

3. Pattani

4. Phra Nakhon Si Ayutthaya

5. Phitsanulok

6. Rayong

7. Ratchaburi

8. Suphan Buri

6 MP seats (5 provinces)

1. Kalasin

2. Nakhon Pathom

3. Nakhon Sawan

4. Phetchabun

5. Maha Sarakham

7 MP seats (4 provinces)

1. Chaiyaphum

2. Chiang Rai

3. Sakon Nakhon

4. Surat Thani

8 MP seats (5 provinces)

1. Nonthaburi

2. Pathum Thani

3. Roi Et

4. Samut Prakan

5. Surin

9 MP seats (3 provinces)

1. Nakhon Si Thammarat

2. Si Sa Ket

3. Songkhla

10 MP seats (4 provinces)

1. Chonburi

2. Chiang Mai

3. Buriram

4. Udon Thani

11 MP seats (2 provinces)

1. Khon Kaen

2. Ubon Ratchathani

16 MP seats (1 province)

1. Nakhon Ratchasima

33 MP seats (1 province)

1. Bangkok

Source:rocketmedialab