Agios Stefanos is a rather exclusive suburb in Attica

Attica

Attica is a historical region of Greece, containing Athens, the current capital of Greece. The historical region is centered on the Attic peninsula, which projects into the Aegean Sea...

, Greece

Greece

Greece , officially the Hellenic Republic , and historically Hellas or the Republic of Greece in English, is a country in southeastern Europe....

, about 23 km north of Athens. Since the 2011 local government reform it is part of the municipality Dionysos

Dionysos, Greece

Dionysos is a residential suburb and a municipality in northeastern Attica, Greece — just about 23 km northeast of Athens. The seat of the municipality is the town Agios Stefanos. Dionysos is almost purely residential, but there are a few shops....

, of which it is the seat and a municipal unit.

Agios Stefanos is almost entirely residential, but a few shops line its main street. The suburb is situated in the northern part of the Athenian plain, between the Parnitha

Parnitha

Mount Parnitha is a densely forested mountain range north of Athens, the highest on the peninsula of Attica, with an elevation of 1,413 m and a summit known as Karavola...

 mountain and the mountain range to the east, and is accessed via two interchanges, with GR-1

Greek National Road 1

The Greek Motorway 1 is a motorway, partly under construction, and the 2nd longest in Greece. It is the principal north-south road connection in Greece, connecting the country's capital Athens with the regions of Thessaly and Macedonia, as well as the country's second largest city,...

/E75

European route E75

European route E 75 is part of the International E-road network, which is a series of main roads in Europe.The E 75 starts from Vardø, Norway in the Barents Sea and runs south through Finland, Poland, Czech Republic, Slovakia, Hungary, Serbia and Republic of Macedonia to Sitia, Greece on...

 (Athens - Lamia - Thessaloniki) at the 21st and the 24th km with the GR-83

Greek National Road 83

Greek National Road 83 is a national highway of Greece. It connects Gerakas with Marathonas and Aghios Stefanos at the junction with Greek National Road 1....

 and 1.3 km south of the tolls. It is linked with a road to Anixi, and the Cephissus

Cephissus (Athenian plain)

Cephissus , Kifissós) or Cephisus Kifisos), a river flowing through the Athenian plain.In his summary of Greek mythology Apollodorus declares that Erechtheus' wife Praxithea was daughter of Phrasimus by Diogenia daughter of Cephissus.This river is found in the western part of the...

 River lies to the west. Agios Stefanos is located SE of Thiva, S of Euboea

Euboea

Euboea is the second largest Greek island in area and population, after Crete. The narrow Euripus Strait separates it from Boeotia in mainland Greece. In general outline it is a long and narrow, seahorse-shaped island; it is about long, and varies in breadth from to...

 and Oropos

Oropos

Oropos is a small town and a municipality in East Attica, Greece.-Geography:It is situated on the southern Euboean Gulf, opposite Eretria. Oropos is located N of Avlona and Athens, E of Thebes and SE of Chalcis. Oropos is linked with the road linking Nea Palatia and Sikamino...

, W of Marathon

Marathon, Greece

Marathon is a town in Greece, the site of the battle of Marathon in 490 BC, in which the heavily outnumbered Athenian army defeated the Persians. The tumulus or burial mound for the 192 Athenian dead that was erected near the battlefield remains a feature of the coastal plain...

, NE of Kifissia

Kifissia

Kifissia or Kifisia is one of the most expensive northern suburbs of Athens, mainly accessed via Kifissias Avenue, running all the way from central Athens up to Theseos Avenue in the suburb of Nea Erythraia. It has traditionally been home to the major Greek political families...

 and NE of the Attiki Odos

Attiki Odos

Attiki Odos is a privately owned toll motorway in Greece. The Proastiakos high-speed suburban rail is set almost entirely in the median of the motorway, along its main section. The motorway's numbers are 6 for the main section, 64 for the Hymettus Beltway and 65 for the Aigaleo Beltway...

 (number 6).

Until the 1960s and the 1970s, farmlands covered the area around Agios Stefanos, of which a remainder still exists around the locality. Forests still covers part of the area, while most of the population are urban, having in the 1960s and the 1970s once been rural. Luxury residences arrived in Agios Stefanos in the 1970s and continued into the 1990s, and development continues to this day.

Other

Agios Stefanos has a few schools, lyceums, a few gymnasia, banks, churches, a post office and a few squares (plateies

Plateia

Plateia or platia is the Greek word for town square. Most Greek and Cypriot cities have several town squares which are a point of reference in travelling and guiding...

). The second tallest man-made structure of Greece the mast of Athens ERA-1 transmitter

Athens ERA-1 transmitter

Athens ERA-1 Transmitter is a facility of Greek broadcasting transmission for broadcasting the program of ERA-1 on 729 kHz with 150 kW in the standard mediumwave band. Athens ERA-1 transmitter uses as antenna a 210 metres tall mast radiator insulated against ground, which is a lattice structure...

is situated north of Agios Stefanos.

Historical population

Year	Town population	Municipality population
1981	2,388	-
1991	5,243	5,333
2001	8,790	8,961