Celebrating communities' efforts in areas of environmental sustainability, resource management and community leadership, the awards were held at Penguin on Friday, with Tasmanian councils battling it out for the titles.

For Launceston, this included taking out the 'Population over 15,000' category.

For King Island, a whole sweep of awards were claimed.

King Island mayor Julie Arnold said she was "overwhelmed" by the region's success, winning awards in the categories of Population under 5000, Community Citizens and top gong the 2021 Tasmanian Sustainable Communities - Keep Australia Beautiful Award.

"I am blown away that King Island has been honoured in such a way," Cr Arnold said.

"Both our community - our individuals and the council - have been given awards by Keep Australia Beautiful.

"It's just wonderful for a small, remote community to be honoured in this way, and to understand that the efforts our volunteers, our residents and our council make are appreciated and understood by the wider community."

Tasmania's bid in the national competition now rests on King Island's small, but mighty, shoulders.

Cr Arnold said that while it was a daunting proposition, her residents were up for the challenge.

Also representing the Coast at the awards were Waratah-Wynyard Council mayor and deputy mayor Robby Walsh and Mary Duniam respectively, with Wynyard winning the population between 5000 - 15000 category.