GA pilot reported a NMAC with a skydiving aircraft and skydivers during final approach to a non-towered airport requiring evasive action to avoid hitting the skydivers.

Narrative

While flying a left closed traffic pattern for touch and goes on Runway XX at above named airport; a drop zone aircraft dropped skydivers onto the drop zone. Prevailing winds were from the south; with a slight headwind component favoring Runway XX. Normally the drop zone pilots are pretty expert at releasing the parachutists from the plane with prevailing winds in mind. However; in this event; the position from which the jumpers began their freefall; and the point at which they opened their parachutes; combined with the prevailing winds; caused several of them to be in a position of slightly north of the runway. The desired primary landing zone for them is south of the runway. Turning final for Runway XX at flight idle and full landing flaps; I saw several parachutists encroaching upon the final approach course. One was approximately 100 feet below the position of my aircraft; and approximately 750-1500 feet ahead; and crossing the centerline of the runway from north to south as he attempted to make it to the normally preferred parachute landing zone. One other parachutist had already crossed the runway centerline from north to south and was clear of the runway. And two others were north of the runway and elected wisely to remain north of the runway and land there. I discontinued the approach and made a climbing right turn away from the airport and remained clear of the traffic pattern for several minutes; re-entering the pattern to land 5 minutes later.It is often stated to anyone inquiring; and is included on the ASOS; that performing a standard traffic pattern will keep all airplane traffic clear of the skydivers. This is entirely dependent upon the safety protocol embraced or not embraced by the drop zone; and how effectively they are training and leading the people who skydive at their facility. In the future; I intend to NOT be in the traffic pattern at the same time this operation has aircraft on a jump run. The accuracy in placement of the skydivers into a position from which they can safely reach the landing zone is in question. And the understanding of the skydivers to not cross the runway centerline of a runway in use seems to be in question as well. The only thing I can do is to maintain an understanding of these observations; and remain clear of the traffic pattern any time the jump plane is getting ready to drop a load of skydivers.