Άγιος Ιωάννης · district
Agios Ioannis scores 38 out of 100 for property crime — above-average crime, on a scale where 50 is the average for Greece. It is home to about 12,307 people at 12,861 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.
An inland residential quarter of Kalamaria taking its name from the church of Agios Ioannis Prodromos, which municipal heritage records place in the Katirli settlement area. Like most of Kalamaria's inland subdivisions it is dense low- and mid-rise housing with local shops, schools and a parish, and no separate commercial or nightlife identity. Nothing in Greek police releases, local press or travel writing singles out Agios Ioannis for crime or for safety. Judge it by Kalamaria's overall record.
Quiet, residential, and dark early. No documented problems; no reason to be out here at night unless you live here.
Fine and ordinary. The centre, metro and seafront are all within walking distance, which is the real argument for it.