Go here
RabbitEars.Info
Find the name of the town you live in
(if you know just one of the call signs of a local station you can put it in the search box at the top)
Find the town you live in and click on that town. Up comes a list of local stations. Doesn't mean you will be able to receive them all but it gives you an idea.
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And / Or go to
RabbitEars.Info
The first search on the page put in your zip code but to be conservative, lower the distance to 40 miles.
This one is really good if you are between towns or don't find the name of your town in the first list.
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Again, this is not a list of what you will but what you might pick up. Conditions vary.
If you wanted to take searching what you can pick up to the next level there is another web site that does that well, but a little more techie.