Over 2.1 million people across 20 provinces and Bangkok remain affected by floods

Flooding continues to affect 704,699 households, or 2,148,896 people, across 20 provinces and Bangkok, the Department of Disaster Prevention and Mitigation (DDPM) said on October 17, 2026, as officials accelerate recovery work and prepare records for financial relief.

DDPM director-general Nirat Pongsitthaworn said heavy to very heavy rain, combined with runoff from the North joining water in the Central region, had prolonged flooding. DDPM reported falling water levels in all 20 affected provinces and the three affected Bangkok districts.

DDPM’s figures as of 6am Bangkok time covered 89 districts, 728 subdistricts and 5,577 villages in the 20 provinces. Bangkok accounted for a further three districts and 16 subdistricts, with its affected households included in the nationwide total.

Flooding persists in two northern and four eastern provinces

DDPM’s October 17 update recorded affected communities in Phitsanulok and Nakhon Sawan in the North, and Nakhon Nayok, Prachin Buri, Chachoengsao and Chon Buri in the East.

- Phitsanulok: Flooding affected 65 households in three subdistricts and six villages in Bang Rakam district.

- Nakhon Sawan: Flooding affected 4,419 households across eight districts: Phayuha Khiri, Banphot Phisai, Kao Liao, Mueang Nakhon Sawan, Chum Saeng, Tha Tako, Krok Phra and Nong Bua. The affected area covered 80 subdistricts and 780 villages.

- Nakhon Nayok: Flooding affected 23,835 households in 11 subdistricts and 116 villages in Ongkharak district. Six deaths were reported.

- Prachin Buri: Flooding affected 59,242 households across six districts: Kabin Buri, Si Maha Phot, Mueang Prachin Buri, Prachantakham, Ban Sang and Si Mahosot. The affected area covered 59 subdistricts and 641 villages. Twenty-six deaths were reported.

- Chachoengsao: Flooding affected 54,729 households across eight districts: Bang Nam Priao, Phanom Sarakham, Bang Khla, Plaeng Yao, Mueang Chachoengsao, Ban Pho, Khlong Khuean and Ratchasan. The affected area covered 75 subdistricts and 667 villages. Seven deaths were reported.

- Chon Buri: Flooding affected 521 households in five subdistricts and 35 villages in Phanat Nikhom district.
Pathum Thani has the most affected households

DDPM recorded 216,276 affected households in Pathum Thani, the largest provincial total. The breakdown for the 14 provinces grouped under the Central region was:

- Uthai Thani: Flooding affected 352 households in eight subdistricts and 31 villages in Mueang Uthai Thani district.

- Lop Buri: Flooding affected 1,177 households in eight subdistricts and 33 villages in Ban Mi district.

- Chai Nat: Flooding affected 214 households in three subdistricts and 14 villages in Sapphaya district.

- Sing Buri: Flooding affected 1,137 households in In Buri and Phrom Buri districts, covering three subdistricts and 12 villages. Two deaths were reported.

- Suphan Buri: Flooding affected 21,758 households across eight districts: Bang Pla Ma, Song Phi Nong, Don Chedi, Si Prachan, Mueang Suphan Buri, Sam Chuk, Doem Bang Nang Buat and U Thong. The affected area covered 66 subdistricts and 560 villages. Five deaths were reported.

- Kanchanaburi: Flooding affected 338 households across seven districts: Nong Prue, Dan Makham Tia, Tha Muang, Bo Phloi, Si Sawat, Mueang Kanchanaburi and Sangkhla Buri. The affected area covered 17 subdistricts and 53 villages. Two deaths were reported.

- Ang Thong: Flooding affected 1,592 households across five districts: Pa Mok, Chaiyo, Wiset Chai Chan, Mueang Ang Thong and Pho Thong. The affected area covered 38 subdistricts and 168 villages.

- Phra Nakhon Si Ayutthaya: Flooding affected 71,453 households across 16 districts: Sena, Bang Ban, Phak Hai, Bang Sai, Bang Pa-in, Phra Nakhon Si Ayutthaya, Bang Pahan, Lat Bua Luang, Nakhon Luang, Wang Noi, Uthai, Tha Ruea, Phachi, Ban Phraek, Bang Saai and Maha Rat. The affected area covered 205 subdistricts and 1,360 villages. One death was reported.

- Samut Prakan: Flooding affected 2,240 households in Bang Sao Thong and Bang Bo districts, covering six subdistricts and 35 villages. Nine deaths were reported.

- Pathum Thani: Flooding affected 216,276 households in Thanyaburi, Khlong Luang and Lam Luk Ka districts, covering 21 subdistricts and 244 villages. Two deaths were reported.

- Nakhon Pathom: Flooding affected 19,058 households in Nakhon Chai Si, Sam Phran and Bang Len districts, covering 49 subdistricts and 385 villages.

- Ratchaburi: Flooding affected 11,689 households across nine districts: Photharam, Mueang Ratchaburi, Damnoen Saduak, Ban Pong, Wat Phleng, Chom Bueng, Pak Tho, Bang Phae and Suan Phueng. The affected area covered 34 subdistricts and 162 villages. One death was reported.

- Samut Songkhram: Flooding affected 15,870 households in Mueang Samut Songkhram, Amphawa and Bang Khonthi districts, covering 33 subdistricts and 255 villages. Two deaths were reported.

- Phetchaburi: Flooding affected 2,726 households in Kaeng Krachan, Tha Yang and Khao Yoi districts, covering four subdistricts and 20 villages.

DDPM reported 196,008 affected households across Lat Krabang, Nong Chok and Min Buri districts in eastern Bangkok, covering 16 subdistricts. Four deaths were reported, and water levels were falling.

DDPM orders recovery work and preparation for relief payments

DDPM has deployed personnel and disaster-response machinery to assist affected communities while continuing to monitor weather and water conditions.

DDPM director-general Nirat Pongsitthaworn instructed provincial offices and regional disaster prevention and mitigation centres to maintain assistance in flooded areas. Where conditions are improving, officials must urgently assess damage and restore affected areas with other agencies.

Nirat also instructed officials to compile records of affected residents and arrange assistance promptly in accordance with the relevant criteria and regulations.