| Official Name: | Plaeng Yao |
| Native Name: | แปลงยาว |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Chachoengsao |
| Subdivision Type2: | Seat |
| Subdivision Name2: | Wang Yen |
| Subdivision Type3: | Subdistrict |
| Subdivision Type4: | Muban |
| Established Title: | District established |
| Population Total: | 44,706 |
| Population As Of: | 2017 |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 24190 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 2409 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 13.5847°N 101.2842°W |
Plaeng Yao (Thai: แปลงยาว, in Thai pronounced as /plɛ̄ːŋ jāːw/) is a district (amphoe) of Chachoengsao province, central Thailand.
The minor district (king amphoe) Plaeng Yao was established on 16 October 1978 with the three tambons: Plaeng Yao, Hua Samrong, and Wang Yen from Bang Khla district. It was upgraded to a full district on 15 March 1985.[1]
Neighboring districts are (from the west clockwise): Ban Pho, Bang Khla, Ratchasan, Phanom Sarakham, and Sanam Chai Khet of Chachoengsao Province; and Ko Chan, Phanat Nikhom, and Phan Thong of Chonburi province.
Plaeng Yao is home to Toyota's Gateway Assembly Plant.[2] It has been used to manufacture the Prius model.[3]
Plaeng Yao district is divided into four sub-districts (tambons), which are further subdivided into 48 administrative villages (mubans).
| No. | Name | Thai | Villages | Pop.[4] | |
|---|---|---|---|---|---|
| 1. | Plaeng Yao | Thai: แปลงยาว | 13 | 10,724 | |
| 2. | Wang Yen | Thai: วังเย็น | 11 | 13,716 | |
| 3. | Hua Samrong | Thai: หัวสำโรง | 12 | 11,514 | |
| 4. | Nong Mai Kaen | Thai: หนองไม้แก่น | 12 | 7,470 |
There are four sub-district municipalities (thesaban tambons) in the district:
There are three sub-district administrative organizations (SAO) in the district: