The online survey — conducted for Sun Life Financial — found nine out of 10 respondents aged 18 to 24 experience "uncomfortable" levels of stress, with money and work two of the biggest factors.
Those in the next age brackets aren't doing much better, with 80 per cent of respondents between 25 and 44 indicating they are also stressed to the max from job and financial concerns.
And the poll of 3,113 Canadians online says they're feeling the pinch more sharply than their baby-boomer parents.
The polling found a shortage of jobs and not enough work hours is a main stress point for the young Canadians who participated in the survey.
It notes that the unemployment rate for those under 25 sits at 15 per cent — double the national average.
Conference Board of Canada health economics director Louis Theriault said the country's youngest adults are struggling.
"It is more difficult for young Canadians to find permanent full-time jobs that suit their skills and areas of study. Recent job creation has been dominated by part-time work – which is becoming a trend in Canada," Theriault said in a release.
"This impacts younger workers in particular and contributes to their higher stress level."
The Ipsos Reid online survey suggests other top sources of stress for respondents of all ages include personal relationships and personal health issues.