"I'm talking to Washington State the most these days, definitely," Mayfield told Cougfan.com recently.
Mayfield is rated 3 stars by Scout.com and ranked the No. 50 quarterback prospect in the nation. He is the only other QB offer WSU is known to have made so far.
Besides WSU, Mayfield has scholarship offers from Rice, New Mexico and Florida Atlantic.
A little over a month ago, Mayfield's summer camp and trip plans were focused more around the Texas and Oklahoma schools, and didn't necessarily include an unofficial visit to Washington State.
That has changed.
"I'm definitely taking an (unofficial) trip to Washington State now. I'm not sure exactly when it will be ... I think I'm going up in early July," said Mayfield.
MAYFIELD DOES HAVE other camp plans this summer, including TCU and possibly Alabama.
"Me and Coach Morris (WSU area recruiter) talked about how we run virtually the exact same offense as Washington State," said Mayfield. "It would be a really easy transition for me.
"They said they're only going to take one QB in this class."
As far as timetable, Mayfield said he plans on seeing a school in person before making a verbal pledge.
MAYFIELD COMPLETED 247 of 378 passes for 3,788 yards with 45 touchdowns in his junior campaign. He also rushed for 754 yards and 10 scores.
Last season he led Lake Travis High to a 16-0 season and a fifth consecutive state championship, becoming the first school of any size to win five straight University Interscholastic League football titles.
You can see highlight reels of Mayfield here.
Another QB prospect who could potentially earn a WSU offer is camping in Pullman later this month. Johnny Stanton out of Santa Margarita, Calif. increased his stock at a recent Nike camp.
He's actually rated higher than Mayfield by Scout.com (No. 42 in the nation) as well as three stars, with Scout listing offers from Cal, Washington, Utah, San Diego State, Air Force and Navy. Some of those schools has offered him as an athlete, though Stanton has indicated a definite preference to play QB at the next level.
His camp performance in Pullman should go a long ways towards deciding if he and Wazzu are a tight fit.
He also plans on making unofficials/camps this month at Utah, Nebraska, Oregon State and Oregon.
As a 2011 junior, Stanton threw for 2,439 yards and 13 touchdowns with eight interceptions while rushing for 1,528 yards and 25 touchdowns. He led Santa Margarita High to the CIF-SS Pac-5 and CIF State D-I title as a junior.