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 with 400 constituencies, showing how many MPs each province has, and which provinces have the fewest and most MPs.

Today (27 Dec 2025) marks the first day for candidate registration for constituency Members of Parliament (MPs) nationwide, covering 76 provinces and Bangkok. Political parties actively came to register and draw their candidate numbers with much enthusiasm.

The calculation for determining the number of constituency MPs uses the total number of Thai nationals as of the end of December 2024, which is 64,953,661 people, divided by the 400 constituency seats. This results in approximately 162,384 people per constituency MP.

Next, the population of each province is divided by 162,384 to find the ideal number of MPs per province, totaling 362 MPs. The remaining 38 seats are allocated to provinces with the largest fractional remainders from the initial division, ordered from highest to lowest, with each of these 38 provinces gaining an additional MP seat.

For the 2026 election, the number of constituency MPs per province 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. Prachin Buri

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. Sisaket

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