The population within the city limits in 2010 was 31,925.
Wenatchee is the principal city of the "Wenatchee–East Wenatchee, Washington Metropolitan Statistical Area", which encompasses all of Chelan and Douglas counties (total population around 110,884)
OK, I suspect you mean OC'rs.
I know there have been a couple on the forum from around that area, so hopefully they'll respond. I've OC'd while visiting Wenatchee, no problems.