Νέος Κόσμος · district
Neos Kosmos scores 34 out of 100 for property crime — above-average crime, on a scale where 50 is the average for Greece. It is home to about 16,601 people at 16,579 people per km².
The score is absolute, not a ranking: 50 is the offence rate for Greece as a whole, 100 the safest end of the scale and 0 the least safe, and every doubling of the rate costs the same number of points wherever you are. Regional units are scored from Eurostat's police-recorded offence rates per 100,000 inhabitants. Greece publishes nothing finer, so municipalities and districts share out their region's measured rate by how built-up they are and by documented local reporting — treat those two levels as an estimate, not a count of reported crime.
Neos Kosmos is a working, mixed district below Mets and across Syngrou from Koukaki, built on 1920s Armenian and Asia Minor refugee settlement and decades of state housing. It has genuinely improved: the Onassis Stegi, the EMST contemporary art museum and the Neos Kosmos Theatre are all here, alongside car repair shops, cheap food and a metro and tram interchange.
The Syngrou Avenue corridor is the weak point: fast six-lane traffic, adult clubs and long pedestrian underpasses that are unpleasant to use alone after dark. The inner residential grid away from Syngrou is ordinary and quiet.
Good value and very well connected, and a reasonable pick for a second visit or a longer stay. Less suitable for a first-time visitor, a solo traveller walking home late, or anyone whose route runs through the Syngrou underpasses.
Reputation against reality. Its old blue-collar reputation lags well behind reality in the northern half, but the Syngrou frontage genuinely does behave differently from the neighbourhood behind it.
Streets and squares: Leoforos Syngrou · Leoforos Kallirois · Kasomouli · Lagoumitzi · Lambrakis Hill (Lofos Lampraki)