>> RELATED: Interactive map and charts showing county-by-county Ohio Primary results
Trump beat Kasich in Darke, Logan and Preble counties, but Kasich was the top vote-getter in the rest of the area. That led to a smiling celebration in the Kasich camp late into Tuesday night.
So what happens now? Kasich's campaign will continue, but his one path to the nomination would have to include the first brokered Republican convention since 1948.
On the Democratic side, former Secretary of State Hillary Clinton won easily against U.S. Sen. Bernie Sanders. Sanders edged Clinton in Greene County, but Clinton topped the rest of the area's counties.