Washington County Extension Listing Category County government office Short Description County government office Website https://www.uaex.uada.edu/counties/washington/default.aspx Phone +1 479-444-1755 Address 2536 N McConnell Ave, Fayetteville, AR 72704 ZIP Code 72704 Contact listing ownerSend Message to listing owner Name Email Phone Number Message Leave a Comment Cancel replyCommentName Email Website Save my name, email, and website in this browser for the next time I comment.