| 2018 NIAA 4A Northern Region | Home Sites / Reno H.S. / Galena H.S., NV |
| 2018 NIAA 4A Sunrise Region | Home Sites & Green Valley H.S., Henderson, NV |
| 2018 NIAA 4A Sunset Region | Home Sites & Shadow Ridge H.S., Las Vegas, NV |
| 2018 NIAA 3A Southern Region | Home Sites & Boulder City H.S., Las Vegas, NV |
| 2018 NIAA 2A Northern League | Battle Mountain High School, NV |
| 2018 NIAA 2A Southern League | Needles High School, Calif., NV |
| 2018 NIAA 1A Northern Region | Wells High School, NV |
| 2018 NIAA 1A Southern Region | Pahranagat Valley H.S., Alamo, NV |
| 2018 NIAA 4A State Baseball | Bishop Manogue HS (Thur. + Sat.) & Reno HS (Fri.), NV |
| 2018 NIAA 3A State Baseball | McQueen HS (Thur. + Sat.) & Galena HS (Fri.), Reno, NV |
| 2018 NIAA 2A State Baseball | Reed High School, Sparks, NV |
| 2018 NIAA 1A State Baseball | North Valleys High School, Reno, NV |
| 2018 NIAA 3A Northern League | Churchill County High School, Fallon, NV |
