Kammala jumla mai zuwa: Bayan rikicin Paknam a 1893, sojojin mulkin mallaka na Faransa sun mamaye Chanthaburi, sun dawo da shi a 1905 lokacin da Thailand ta ba da ikon mallakar yankin yammacin Kambodiya. Mafi yawan 'yan ƙasa na Chanthaburi' yan asalin Vietnam ne, waɗanda suka zo can a cikin raƙuman ruwa uku: na farko a cikin karni na 19 a lokacin tsanantawa na Katolika a Cochin China; raƙumi na biyu a cikin 1920s zuwa 1940s da ke tserewa daga Indochina na Faransa; da kuma na uku bayan da
nasarar kwaminisanci a Vietnam a shekarar 1975. Garin Chanthaburi ya kasance wurin zama na Bishop na Chanthaburi tun 1944.