Κάτω Πατήσια · district
Kato Patisia scores 9 out of 100 for overall safety — high crime, on a scale where 50 is the average for Greece. It is home to about 5,906 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.
A dense working- to middle-class district that grew along Patision and Acharnon and was built out hard in the 1950s to 80s. It was hit unusually badly by the crisis: shop closures along Acharnon, property values down sharply, an eleven per cent population fall between the two censuses. It has a large migrant population, an active Saturday street market, and one of the city's older squatted plots at Patmou and Karavia run as a cultural park.
Acharnon and Patision stay lit and trafficked, but the cross-streets go dead and shuttered early; this is the stretch where street robbery reporting concentrates.
Not recommended. The flats are cheap and the ISAP puts you at Omonia in ten minutes, but there is no visitor infrastructure, and the last five minutes on foot are the ones that go wrong.
Reputation against reality. Genuinely a normal dense neighbourhood by day, with schools, markets and a real Saturday laiki. The 'ghetto' framing in some Greek press overstates it; the honest version is a district that lost its commerce and has not got it back.
Streets and squares: Acharnon · Patision (28is Oktovriou) · Agiou Meletiou · Lelas Karagianni · Patmou and Karavia · 3is Septemvriou