The publishers announced the moves Thursday.
Staff members in both newsrooms were offered voluntary buyouts, but if not enough people take them there will be layoffs before the Sept. 30 end of Capital Newspapers' fiscal year.
Also, the two newsrooms will merge staff members into combined departments for features, sports, photography and multimedia to gain efficiencies.
The newspapers will continue to independently produce news and opinion on the Web and in print. Breaking news is already done in collaboration between the two newsrooms.
The publishers said the moves are in response to the recession.
By: The publishers of the Wisconsin State Journal and The Capital Times will cut up to 15 newsroom jobs and consolidate some functions of the two newspapers.