The Jolly Sailor sculpture has taken up residence on a bench outside The Dolphin Pub in The Barbican and The Cheerful Shopper can be found outside Plymouth Market.
The Bowls Player has been placed next to the Hoe public bowling green and Ruby Venezuela stands near the former Lockyer Tavern.
Sophie Howe, Cook’s granddaughter, said: “Beryl loved Plymouth and Plymouth loved her back.
“Seeing her characters come to life in the actual places she painted them – The Hoe, the pubs, the market – would have absolutely delighted her.”
Jemima Laing, deputy leader of Plymouth City Council, said: “These sculptures are Plymouth’s way of saying thank you to an artist who never stopped celebrating us.”
The exhibition Beryl Cook: Pride and Joy, external is at The Box in Plymouth until 31 May.