The Municipality of Topeiros was established for the constitution of the Primary level of Local Government known as "Program I. Kapodistrias". It resulted from the unity of the former Communities of Avato, Galani, Exohi, Erasmio, Evlalo, Maggana, Olvio, Toxotes. Its extension is 312,5 Km2. It consists of 36 settlements and it has got a population of about 14.500 people. The population is mixed, 65% Christians and 35% Muslims.

The North section of the Municipality is mountainous and composes part of the mountain range of Rodopi. It has rich vegetation, with rare flora and fauna, deep ravines with a big number of small streams which join Nestos river. The highest top is Imera, with an altitude of 1286m. All the west side is traversed by the Nestos river, which has its springs in Bulgaria. Its natural flow creates meanderings, which are surrounded by steeps areas with aquatic vegetation forming a distinctive landscape, known as the "NARROWS of NESTOS". The Southern part of the Municipality and the biggest one, is flat and covered with arable lands. There are some hilly as well as swampy lands, mostly near the coast line of Thracian Sea and the Nestos DELTA. There are also sandy hills near the coast line.

A very significant element of the flat part is the Nestos river. It is the western border of the Municipality. The river in its whole length and specifically at its end in the sea, composes the DELTA and presents a significant ecological and aesthetic sense, because of the aquatic river side forest all along the river. There are a lot of streams and torrents in the flat parts, with the LASPIA torrent, as the most significant one.

Also, the most important natural resources are the NESTOS DELTA and the NARROWS of NESTOS. The Delta of Nestos was characterized as one of the ten most valuable wetlands of Europe. According to scientific and ecological point of view, it offers a very rich variety of fauna. Finally, the water of Nestos consists a significant agricultural resource.

In the area of the Municipality exist industries of National importance the Handicraft Area of Topeiros, which is about to be prepared. It is crossed by the Egnatia Road and the railway line Thessalonica - Alexandroupoli.

There are 3 Gymnasiums (High schools), 28 Elementary Schools and 11 Kindergartens. There are also Infant-kindergartens, family centers, community clinics, private medical offices, dental clinics and many pharmacies.

In the Municipality there are a lot of cultural associations, women's clubs, athletic clubs and fields. Also, massive athletics, theatrical-dancing, photography, music and environment clubs operate in the area.

The Town Hall of the Municipality is in the settlement of Evlalo.

The Mayor's name is Stilianos Chatzievaggelou.

The Technical & Agricultural Departments are in the settlement of Avato.