Had colonoscopy found one polyp removed and biopsied was a tubular adenoma. Said next coloscpy in 5 yrs. No fam history colon cancer. Too long?

Correct time frame. This is correct according to the current recommendations.
Reccomended time. I know it feels uncomfortable to wait so long, but these time frames are based on multiple large studies with risk and time calculated closely to see when the safe time frame to go without a colonoscopy is. This falls in that time frame, especially with no fam history. Any symptoms though, contact the GI doc as soon as you see any. Hope that helps!