After the liberation of Gidas in 1912, the town constituted an autonomous community for the first time on 9 September 1918, under the Provisional Government of National Defence based in Thessaloniki, and was appended to the prefecture of Thessaloniki.
The liberation was also followed by a general confusion about the spatial arrangement of the newly acquired land.
In 1919, the former chiflik of Gidas was expropriated for the first time and re-distributed to the people of the town.
After the Greco-Turkish War of 1919–1922 and the population exchange between Greece and Turkey, 40 refugee families settled in Gidas and the need for their rehabilitation led to a second distribution of the land to the people.
In 1932, the lake of Giannitsa, near which Gidas was located, was drained by the New York Foundation Company and, in 1936, a third re-distribution of land followed.
The on end spatial arrangement led to the continuously unfair dispersion of land to the people, which was resolved with the fair distribution of 3 acres (1 ha) to each dweller in 1937.
Finally, in 1950, a second expropriation of 1400 fields took place with the following allocation of 14 acres (6 ha) to new farmers residing in Gidas.

After the draining of the lake of Giannitsa took place in 1932, thousands of fertile fields became available, which supported the local people and led to the general development of the area.
Soon, an extended irrigation network was constructed, which allowed the cultivation of a large variety of agricultural products.
In addition to the local development, the all along current location of the Roumlouki fields, serving as a junction between Thessaloniki and the Western Macedonia as well as the Southern Greece, constituted an attraction for internal migration and a push for strong economic progress.

In the census of 1920, Gidas had a population of 844 people, and a rapid population growth is being observed ever since until today.
Soon, the first public services would be staffed aiding the needs of the town and the surrounding communities.
In 1931, the local settlements were distributed and the land was demarcated definitively, changing forever the urban planning of the town.
In 1941, Gidas is detached from the prefecture of Thessaloniki and is appended to the prefecture of Imathia.
After the end of the Second World War and by 1946, many immigrant families from the Western Macedonia moved and settled in Gidas.
During the same period, a large number of Romani populations started appearing in Gidas, and today they constitute the largest minority group in Alexandreia.

During the decade of 1950, the town planning and the economy of Gidas saw drastic changes.
All the buildings, houses, utility rooms, shops, schools and even churches of the old village of Gidas were either replaced by new constructions and multi-storey buildings or succumbed to the ravages of time.
The town center was moved closer to the historical building of the railway station, which connected and until nowadays connects the cities of Thessaloniki and Veroia by rail, and Gidas would further on be an example of a town with a basic center of commercial nature.
The only 19th century buildings still standing in Alexandreia are Pasha Mehmed Şefik's Konak (1875) and the railway station (1894).
During the service of the first elected mayor of Gidas, Ioannis Petridis, the electrification of the town's households took place for the first time.

In 1952, the town council suggested the renaming of Gidas to Alexandreia on the grounds that the town was a commercial and communication center in the middle of a largely populated rural area as well as due to the proximity of the town to the birthplace of Alexander the Great, whose name had not been used to name any other place in Greece.
Gidas was officially renamed to Alexandreia a year after, in 1953.

During the last half century, Alexandreia was rapidly developed and urbanized.
This development was not without any public implications.
More particularly, the city had major problems with water supply and sewerage for decades, however, tho
After the liberation of Gidas in 1912, the town constituted an autonomous community for the first time on 9 September 1918, under the Provisional Government of National Defence based in Thessaloniki, and was appended to the prefecture of Thessaloniki. The liberation was also followed by a general confusion about the spatial arrangement of the newly acquired land. In 1919, the former chiflik of Gidas was expropriated for the first time and re-distributed to the people of the town. After the Greco-Turkish War of 1919–1922 and the population exchange between Greece and Turkey, 40 refugee families settled in Gidas and the need for their rehabilitation led to a second distribution of the land to the people. In 1932, the lake of Giannitsa, near which Gidas was located, was drained by the New York Foundation Company and, in 1936, a third re-distribution of land followed. The on end spatial arrangement led to the continuously unfair dispersion of land to the people, which was resolved with the fair distribution of 3 acres (1 ha) to each dweller in 1937. Finally, in 1950, a second expropriation of 1400 fields took place with the following allocation of 14 acres (6 ha) to new farmers residing in Gidas.
After the draining of the lake of Giannitsa took place in 1932, thousands of fertile fields became available, which supported the local people and led to the general development of the area. Soon, an extended irrigation network was constructed, which allowed the cultivation of a large variety of agricultural products. In addition to the local development, the all along current location of the Roumlouki fields, serving as a junction between Thessaloniki and the Western Macedonia as well as the Southern Greece, constituted an attraction for internal migration and a push for strong economic progress.
In the census of 1920, Gidas had a population of 844 people, and a rapid population growth is being observed ever since until today. Soon, the first public services would be staffed aiding the needs of the town and the surrounding communities. In 1931, the local settlements were distributed and the land was demarcated definitively, changing forever the urban planning of the town. In 1941, Gidas is detached from the prefecture of Thessaloniki and is appended to the prefecture of Imathia. After the end of the Second World War and by 1946, many immigrant families from the Western Macedonia moved and settled in Gidas. During the same period, a large number of Romani populations started appearing in Gidas, and today they constitute the largest minority group in Alexandreia.
During the decade of 1950, the town planning and the economy of Gidas saw drastic changes. All the buildings, houses, utility rooms, shops, schools and even churches of the old village of Gidas were either replaced by new constructions and multi-storey buildings or succumbed to the ravages of time. The town center was moved closer to the historical building of the railway station, which connected and until nowadays connects the cities of Thessaloniki and Veroia by rail, and Gidas would further on be an example of a town with a basic center of commercial nature. The only 19th century buildings still standing in Alexandreia are Pasha Mehmed Şefik's Konak (1875) and the railway station (1894). During the service of the first elected mayor of Gidas, Ioannis Petridis, the electrification of the town's households took place for the first time.
In 1952, the town council suggested the renaming of Gidas to Alexandreia on the grounds that the town was a commercial and communication center in the middle of a largely populated rural area as well as due to the proximity of the town to the birthplace of Alexander the Great, whose name had not been used to name any other place in Greece. Gidas was officially renamed to Alexandreia a year after, in 1953.
During the last half century, Alexandreia was rapidly developed and urbanized. This development was not without any public implications. More particularly, the city had major problems with water supply and sewerage for decades, however, tho
Alexandreia, Greece