The 23-year-old Wales international struck his 20th and 21st goals of the season in the Blades' 2-1 win over Preston at the weekend, but remains hungry for more as Danny Wilson's side maintain their challenge for automatic promotion.
Evans said: "My next target which I would like to hit is 30. I think it's possible, I set myself targets for inspiration and at the moment I'm enjoying my football.
"I'm delighted with how my season has gone, having missed games at the start, and all the times I have hit the woodwork and, on Saturday, missing a penalty.
"I've kept a count on how many times I've hit the post or crossbar and I believe it's about 14 times. If they had gone in I'd be looking at nearing 40 goals by February."
