There is no one perfect place to learn about all upcoming tournaments. You have to dig a little bit. US Chess, the Indiana State Chess Association (ISCA), and Scholastic Chess of Indiana (SCI) all maintain tournament calendars. Not everybody lists their tournament with these organizations, but it's a good place to start.
"Local" roughly means within an hour of my home base, Goshen, Indiana. Here are the local tournaments I know about.
At the Niles Public Library, 620 E Main St, Niles, MI 49120. US Chess rated. Free entry, no prizes. 3 or 4 games, depending on the number of entrants. G/30;d0. Yes, no delay! Notation required. Doors open at 10am, first game at about 10:30. Usually finishes mid-afternoon. Email Martin Klubeck if you plan to attend.
At the Niles Public Library, 620 E Main St, Niles, MI 49120. US Chess rated. Free entry, no prizes. 3 or 4 games, depending on the number of entrants. G/30;d0. Yes, no delay! Notation required. Doors open at 10am, first game at about 10:30. Usually finishes mid-afternoon. Email Martin Klubeck if you plan to attend. It is a holiday weekend, so there could be a schedule change. Check before going.
At the Goshen Public Library, 601 S 5th St, Goshen, IN 46526. Two sections. Open: 4-SS, G/35;d5. US Chess membership required ($$). Notation required. Players can stop notating when either player is under 10 minutes. Third Grade & Under: 5-SS, G/25;d5. US Chess Number required (free). Notation not required. Both sections: We must be out of the library before 4pm. In extremis, I reserve the right to adjudicate last-round games. No entry fee, no prizes. Doors open at 10am, players should be present by 10:15. We usually finish by 3pm. Check out the tournament crosstable for entries to date. DO NOT CALL THE LIBRARY WITH QUESTIONS. E-mail me for more information or to enter. ADVANCE ENTRY ONLY!