If you're enough a political junkie that you can't just wait a couple hours until all the Indiana returns are in. Here are a couple pages to play with.
Here's CNN's breakdown
of which counties are still reporting votes -- and which haven't reported any. And here are population counties
of each Indiana county.
So you can do some quick calculations and see how close this might get.
Remember, Gary, Indiana is in Lake County. And Lake has yet to report any votes tonight.