04 (Waterton),[4] is an improvement district in Alberta, Canada.

Coextensive with Waterton Lakes National Park in southern Alberta, the improvement district provides local governance for lands within the park that are not within an Indian reserve.

Following a partial amalgamation of the two municipal districts, remnant unsurveyed lands were incorporated as ID No.

[6] In the 2021 Census of Population conducted by Statistics Canada, Improvement District No.

[7] In the 2016 Census of Population conducted by Statistics Canada, Improvement District No.

4 is governed by a five-person council comprising a chair and four councillors.