Alberta, which had the highest minimum wage in Canada six years ago, is now tied with Saskatchewan for the lowest at $15 an hour.

Alberta now has the lowest minimum wage in Canada, being the only province not to raise the minimum wage this decade.

Saskatchewan increased its minimum wage to $15 an hour Tuesday. The province continues to have Canada's lowest minimum wage, alongside Alberta, which increased it to $15 in 2018.

New data shows Alberta spends the lowest amount of money per inmate in Canada — a number the province says is value for money but critics label short-sighted and worrisome.

As of October 1, four provinces' minimum wages are increasing, but not Alberta. Alberta's minimum wage is tied for the lowest in the country, with Saskatchewan, and hasn't seen an increase since 2018.