Emergency services remained overnight at the scene of the serious flooding incident in Skewen.
A major incident was declared after at least eight streets, including Goshen Park, flooded and a large number of properties needed to be evacuated.
Everyone who was evacuated was found accommodation for Thursday night, estimated at around 80 residents.
There have been no reported injuries and we ask people to continue to avoid the area.
The cause of the flooding is being investigated and the water level will continue to be monitored.
Chief Superintendent Andy Valentine, of South Wales Police said: “Emergency services, Neath Port Talbot Council and other civil contingencies partners have been working together to safeguard local residents and prevent further harm.
“A multi-agency strategic coordination group has been established to co-ordinate the emergency response to this incident and to help support those affected by the flooding.”
Deputy Chief Fire Officer, Roger Thomas, of the Mid and West Wales Fire and Rescue Service, added: “First and foremost, our thoughts are with those who have been affected by the events of Thursday.
“This incident involved a large multi-agency response to what was a dynamic and fast-moving incident, with incredible efforts by everyone involved to ensure the safety and wellbeing of the affected community.
“Our crews will remain available throughout the night to support our partners in bringing this incident to a safe conclusion.”
Neath Port Talbot Council Chief Executive Karen Jones said on Thursday night : “Council officers have been on site since around midday and there will be a continued council presence in the area throughout the night.
“Our main focus at present is on continuing to support residents who had to leave their homes and ensuring others have a safe place to go if further evacuations are necessary. A local rest centre is on standby, where measures have been put in place to protect against the spread of Covid-19.”