Situated in the southern interior of the country, in the vast Alentejo region, Arraiolos is today a 684.08 Km2 second-order rural municipality, with a population of 7,363 inhabitants (2011 census).
Over the second half of the 20th Century, it was comprised of 7 parishes: Arraiolos, Vimieiro, Igrejinha, S. Pedro da Gafanhoeira, Sabugueiro, S. Gregório and Santa Justa. Today it has 5 parishes:
– Arraiolos, 146.1 km2; Union of the Parishes of Gafanhoeira (São Pedro) and Sabugueiro, 83.4 km2; Igrejinha, 84.5 km2; Union of the Parishes of São Gregório and Santa Justa, 117.2 km2 and Vimieiro, 252.6 km2.
The municipality of Arraiolos is located in the district of Évora, bounded to the north by the municipalities of Mora and Sousel, to the east by the municipality of Estremoz, to the south by the municipality of Évora, to the south-west by the municipality of Montemor-o-Novo and to the north-west by the municipality of Coruche.
In hydrographic terms, the Tagus basin (almost entirely) covers the municipality of Arraiolos, with part of the Guadiana Basin forming a small part of the south-east of the municipality, the main watercourses and weirs flowing into the Tagus Basin.
The main permanent watercourses that cross the municipality of Arraiolos are: Têra stream, Freixo stream, Divor stream, Vide stream and the Almansor river. It is also worth mentioning the existence of several reservoirs scattered throughout the municipality, from which the Divor reservoir stands out for its size, with a 265-hectare surface area and a useful capacity of 11.89 hm3.
As an expanding municipality, Arraiolos today has an open and democratic administration, where its people, proud of their ancestors and their heritage, foresee a future of progress.