
Santa Quitéria was since March 1823 a district of the municipality of Sobral, situated over 200 km southwest of the province capital Fortaleza. In August 1856 it emancipated as a villa.
According to Nova Monteiro (Administrações e Agencias Postaes do Brasil Imperio, in Brasil Filatelico/RJ, 1934-5; Reprint SPP 1994-1999), the local post office was opened in August 1866, but there was a mail courier line through Santa Quitéria as early as 1861, as reported by the regional press:

No postal cancel from the Empire has been surely identified until now.

Santa Quitéria war seit März 1823 ein Distrikt des Município von Sobral und lag über 200 km südwestlich der Provinzhauptstadt Fortaleza entfernt. Er stieg zur Villa im August 1856 auf.
Laut Nova Monteiro (Administrações e Agencias Postaes do Brasil Imperio, in Brasil Filatelico/RJ, 1934-5; Reprint SPP 1994-1999) entstand das örtliche Postamt im August 1866, aber bereits 1861 gab es eine Stafettenlinie der Post zwischen Imperatriz und Santa Quitéria, wie die Regionalpresse berichtet:

Kein Stempel aus der Kaiserzeit konnte dieser Ortschaft sicher zugeordnet werden.