Chonburi and Chachoengsao are among the hottest areas in the Eastern region for the 2026 election. Several districts see influential local families and former champions aiming to reclaim their seats. Attention is drawn to districts with candidate changes and to the powerful Thienthong family in Sa Kaeo, highlighting family ties and local political dynamics.
Summary of candidate situations across various districts is as follows:
- Thitima Chaisang (District 1, Pheu Thai): The incumbent champion and a major local figure since 2023, with a narrow lead in votes. It remains to be seen if the local power base can hold the seat.
- Attakorn Sirilattayakorn (District 2, Kla Tham Party): A former champion and ex-member of Palang Pracharath who switched parties aiming to reclaim the seat under the Kla Tham banner. His key rival is Phanphong Asvachaisophon (Pheu Thai), running under the name Somchai Asvachaisophon, a former Pheu Thai MP.
- Praewnapas Thongsuwan (District 4, Prachachon Party): Running for MP as a representative of Jirath Thongsuwan, the previous champion. This district features fierce competition, including key contenders Sergeant Major Yotsingh Liamlert (Kla Tham Party) and Police Lieutenant General Pitak Jarusombat (Pheu Thai).
- Suchart Chomklin (District 1, Bhumjaithai Party): A major local figure for the party, he is making a comeback to reclaim the seat. He is contesting against Worath Sirirak (Prachachon Party), with previous election results showing a narrow margin.
- Wannida Nopasit (District 1, Prachachon Party): Last term's champion, aiming to secure another victory in this election. The outcome on whether she can hold the seat remains to be seen.
- Krit Cheewathammanon (District 6, Kla Tham Party): The former champion from Prachachon Party now running as a district MP candidate for Kla Tham. The competition features new faces, including notable rival Surasit Nithiwutwirak (Bhumjaithai Party).
- Sahasawat Khumkong (District 7, Prachachon Party): The former champion from Prachachon Party faces significant competition from Songkran Phachana (Bhumjaithai Party), former Deputy Mayor of Chao Phraya Surasak Municipality.
- Sathira Phueakprapan (District 10, Kla Tham Party): Formerly with Palang Pracharath and a previous champion, he seeks to defend his title against key rival Akkarachet Raksakulsoongsai (Pheu Thai), a former Deputy Chief of a Subdistrict Administrative Organization (SAO).
- Prachyawan Chaisueb (District 2, Prachachon Party): The previous election's champion aiming for another term, facing competition from other local political figures.
- Phanset Numnu (District 1, Prachachon Party): Running as "Sakdinee Numnu," the father and former champion from Prachachon Party. A notable competitor is Pichanont Ingprasarn (Bhumjaithai Party), the former "Kamnan Pom" of Bo Phloi Subdistrict, Bo Rai District.
- Amnat Wilawan (District 1, Bhumjaithai Party): The incumbent champion and local power from the previous election. It remains to be seen if he can secure another term.
- Trinuch Thienthong (District 2, Palang Pracharath Party): A representative of the prominent Thienthong family from Sa Kaeo, former champions and local power brokers. She was the party's sole prime ministerial candidate in this election.
- Suang Thienthong (District 3, Pheu Thai Party): Also from the influential Thienthong family in Sa Kaeo, a former champion and local power figure aiming to win again in this election.