Hertsmere Borough Council collected 17,913 bras weighing over a tonne, which can now be reused by women in poorer countries.
Councillor Jean Heywood, Environment Portfolio Holder, thanked everyone who had taken part in the initiative, which is in its first year.
She said: “This really is great news. It’s brilliant that this scheme has been so well supported. Thank you to everyone who has taken part. By recycling your bras, not only will less waste be sent to landfill but women in poorer countries will benefit and you will be helping to fund research into breast cancer.”