The leisure and hospitality industry saw the greatest private sector job gains.
The Bridgeport-Stamford-Norwalk corridor lost 1,000 jobs last month.
Condon blamed the downward revision on the difficulty in growing jobs in a low unemployment rate environment.
CBIA's Pete Gioia called the job gains "a fairly weak number."
The labor market in the Bridgeport-Stamford-Norwalk corridor shed 900 jobs last month, the largest number for Connecticut’s metro areas.
The Bridgeport-Stamford-Norwalk corridor in September added 700 jobs last month.
Private-sector employment is up by 10,500 seasonally adjusted jobs over September 2018. The state Department of Labor also revised the August job gain of 2,800 down to a gain of 1,200.
“July’s payroll employment was essentially flat to June’s,” said Andy Condon, director of the Office of Research at the Connecticut Department of Labor.
The private sector's job gain was overwhelmed by public sector job losses.
Private-sector employment declined by 1,600 to 1,457,400 jobs over the month of May.
Despite the revised data, the state unemployment rate remained at 3.8 percent.
The Bridgeport-Stamford-Norwalk area saw 1,000 net new positions while the Danbury area lost 100 jobs.
"It is clear that Connecticut’s labor market continues to tighten," said Andy Condon, director of the DOL’s Office of Research.
Connecticut now has an estimated 1.7 million seasonally adjusted jobs and an estimated 80,000 jobless residents.
Connecticut’s unemployment rate improved even after it lost 500 jobs in September, according to the state Department of Labor.