Ydraiika scores 39 out of 100 for property crime — above-average crime, on a scale where 50 is the average for Greece. It is home to about 3,429 people at 13,556 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.
What Ydraiika is actually like
The historic heart of the modern city, between Akti Miaouli and Sachtouri, G. Theotoki and Thoukydidou, laid out on the Kleanthis and Schaubert grid for settlers from Hydra who arrived from 1838. Agios Nikolaos, the sailors' church, opened in 1844. It runs up to the port, so this is where ferry passengers actually walk, and where old Troumba stood around Filonos and Notara.
After dark
The port frontage is busy round the clock, but the blocks behind Akti Miaouli thin out fast. At about 05:00 on 30 August 2026, two police officers at a port bus stop were beaten by four men who fled by car: precisely the early-ferry hour.
Staying here
The most convenient district for a dawn sailing, a flat five to fifteen minutes to most gates. Book on the quieter inland streets, and take a taxi rather than walk before dawn.
Reputation against reality. Troumba's red-light reputation is a museum piece: the licensed houses around Filonos and Notara, inside the block bounded by Akti Miaouli, Filellinon, Kolokotroni and Sotiros Dios, were closed on 12 September 1973 and the area is now ordinary and partly gentrifying.
Streets and squares: Akti Miaouli · Sachtouri · Thoukydidou · G. Theotoki · Agios Nikolaos · Filonos
Other neighbourhoods in Piraeus
Nearby municipalities
Questions people ask
Is Ydraiika safe?
Ydraiika (Υδραίικα) scores 39 out of 100 for property crime on SafetyMap — above-average crime, on a scale where 50 is the Greek average. That is based on the police-recorded offence rate of its regional unit, apportioned by how built-up Ydraiika is. That works out to about 1,460 property offences and 147.9 violent offences per 100,000 residents a year.
Is Ydraiika safe at night?
Ydraiika records more crime than most of Greece, so stay on busy, lit streets late at night, keep phones and bags out of sight, and use licensed taxis rather than walking long distances alone.
How does Ydraiika compare with the rest of Piraeus?
Ydraiika scores 39 out of 100 for property crime, against 38 for Piraeus as a whole — about the same as its surroundings.