The online campaign was started after a comment on Twitter about a statue of RoboCop spurred a response from Detroit Mayor Dave Bing denying any such plans were underway.
Organizers hope the project will lead to other civic projects.
"The surprisingly quick campaign to raise at least $50,000 to build a larger-than-life statue of RoboCop in Detroit shouldn't stop with the crime-fighting cyborg, the fund-raisers said Wednesday.
'If we raised this much money for RoboCop, imagine what others can do for the city,' Detroit artist and fund-raiser Jerry Paffendorf said. 'We could raise money for other art projects and for schools and neighborhoods.'"