Division 1, Newfoundland and Labrador is a census division covering the entire Avalon Peninsula including the Isthmus of Avalon of the Canadian province of Newfoundland and Labrador.

The total land area is 9,220.61 square kilometres.

St. John's, the capital of the province, is located in this division along with the second largest of the three cities of the province, Mount Pearl.

The majority of the towns and villages are located along the coast in much of the four main bays as mentioned.

In the 2021 Census of Population conducted by Statistics Canada, Division No.