Thank you for visiting the website for Potosi High School, known as PHS, which houses Potosi's ninth through twelth grade students. PHS participates in the Parent Notification System if you have a student enrolled here or any other Potosi School Building sign up for text alerts via your cellular phone to keep up to date on school closings.


Emergency Notification System


Potosi R-III High School will be administering the ACT exam that is funded by the state of Missouri, for all 11th grade students, in the Potosi R-III School District on April 28, 2015, with a makeup date on May 12,  2015. If your child does not attend Potosi High School, but resides in district and would like to participate, contact Mrs. Schlosser by email at angies @ or at
573-438-2156 by Friday, March 27th


Please use the links to the left to navigate and learn more about Potosi High School, if you need information about other district buildings, those links can be found at the top of the page. If you can't find something you looking for please let us know, by using the Contact Us link to the left.



"Preparing every student for success."



Potosi High School
#1 Trojan Drive
Potosi, MO 63664

(573) 438-2156

Potosi_Trojans Trojan Basketball - Sullivan Tournament - North County 57 - Potosi 47
Potosi_Trojans Lady Trojan Basketball - Fredericktown Tournament - Fredericktown 57 - Potosi 46
Potosi_Trojans Trojan Basketball- Sullivan Tournament - Sullivan 65- Potosi 27
Potosi_Trojans RT @BANDSOFAMERICA: Potosi H.S. (MO) gave us a peek at “The Dark Side of the Rainbow.” #boa2015 #boanolimits
Potosi_Trojans Potosi XC - State Championships - Congratulations to Caleb Gaylord finishes 50th in Class 3 and Skylar Stearns finishes 52nd in Class 3
Page Provided by Alumni Bruce & Victoria (Shepard) Morgan