The London area jobless rate jumped from 6.2 per cent to 6.5 per cent in January as more people surged back into the job market.
For Ontario, some experts raised the possibility of a link between the provincial drop and the introduction last month of a controversial minimum-wage hike.
The province saw an unemployment rate of 5.4 per cent in January - the same as Quebec.
The overall result was dragged down by a loss of 137,000 part-time positions in what was the category's largest one-month collapse on record. But those were more than offset by the 9,200 jobs lost following the holiday season. The number employed dropped by 51,000 but all the declines were in part-time jobs.
Compared with January 2017, employment in the province grew by 104,000 jobs and the unemployment rate declined by 0.9 percentage points.
Greater Sudbury lost 700 jobs in January, figures released Friday by Statistics Canada show.
"We also need to watch to see if our community is affected by the loss of part-time work like elsewhere in Ontario".More news: Kohli hits 34th ODI Hundred, makes it 3-0 for India
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But on the other hand, the agency says the economy generated 49,000 full-time positions last month.
"Market participants are getting schooled in the ways of Canada's employment numbers, and the lesson seems to be that when they're too good to be true, they might not be", CIBC chief economist Avery Shenfeld said in a note.
"The unemployment rate is still low with the economy remaining close to full employment".
Average hourly wages jumped 3.3 percent from last January, the strongest since March 2016. The largest decline in jobs came out of Ontario and Quebec.
However, several experts made sure to note that before trying to draw conclusions from the January report, one should consider the well-known month-to-month volatility in the jobs figures.
Canada shed a net 88,000 jobs during the month, a sharp stop to a recent stellar performance that saw 2017 produce the biggest increase in jobs since 2002. The Canadian dollar traded lower, dipping by 0.07 of a cent at 79.23 cents U.S. Economists are hoping the news will reduce pressure on the Bank of Canada to raise interest rates.