Archaeological Regions of Pompeii

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The Archaeological Regions of Pompeii refer to the division of the ancient city into regiones plural of regio by the archaeologists, based on a methodology devised by Fiorelli in the 1860s CE. There are nine regio numbered from I to IX using Roman numerals. Each regio is further subdivided in to a number of insulae, plural of insula, in this case defined as blocks of houses and shops bounded by roads. These insulae, literally meaning islands, are numbered from 1 upwards (not in Roman numerals).

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The ancient first century city of Pompeii is divided into nine main regions (Regiones), each containing a mix of residential, commercial, and public buildings that offer insights into the daily life and urban organization of this ancient Roman city. The regions are numbered I to IX, and each encompasses a distinct part of Pompeii, reflecting the diverse activities and structures within the city.

Each region of Pompeii offers a unique glimpse into the multifaceted life of this ancient city. From opulent houses with stunning frescoes and mosaics to bustling commercial spaces and significant public buildings, the regions collectively portray a vivid picture of urban life in Pompeii. The division into regions aids archaeologists and historians in systematically studying the city, understanding its urban layout, and preserving its cultural heritage.

The division of the ancient city of Pompeii into regiones (regions) is a modern archaeological and administrative construct rather than a system used by the ancient Pompeians themselves. This division was introduced by archaeologists to systematically excavate, study, and document the site more efficiently.

Giuseppe Fiorelli, an Italian archaeologist who played a significant role in the excavation of Pompeii during the 19th century, is credited with this systematic division. Fiorelli introduced a more organized approach to the excavation and documentation of Pompeii. He divided the city into nine regions (Regiones), further subdividing these regions into insulae (blocks) and numbered buildings within each insula. This method allowed for a more precise and comprehensive recording of the site's layout and findings.

Regiones (Regions or Areas)


Regio I
The Regio I is situated in the southern part of the archaeological site of Pompeii. it is one of the largest archaeological regions of ancient Pompeii, encompassing an approximate area of 90,000 square meters. Notable structures in the Regio I are the House of the Europa Ship, House of Menander, House of the Criptoporticus, House of the Lovers, and Garden of the Fugitives.


Regio I Insula IV
The Regio I Insula IV insula IV of the Regio I is situated in the north-eastern corner of the Regio I. It is adjacent to the Via dell’Abbondanza on the north, Via Stabiana on the west, Vicolo del Menandro to the west and Vicolo el Citarista to the east. The insula covers an area of some 4,200 square meters. It includes the Casa del Citarista (House of the Citharist), covering an area of some 2700 square meters, one of the largest residential complexes in ancinet Pompeii.


Regio V Insula I


Regio VI Insula III


Regio VIII Insula IV
The Insula 4 lies at the north-eastern corner of the Regio VIII, and includes a number of notable residential, commercial and industrial structures. It is located adjacent to the Via dell’Abbondanza to the north, Via Stabiana (Strada Stabiana) to the east, Via del Tempio d'Iside to the south, and Via del Teatri to the west. The Stabian baths are located directly to the north across the Via del'Abbondanza. In this part of the archaeological site, the House of the Cornelii is the largest residential complex.

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