Washington County Assessor Washington County Assessor Search | Advanced Search | New Members | Coupons and Discounts | All Categories Government & Education >> Government Agencies & Officials Washington County Assessor 280 North College Ave., Ste. 250Fayetteville, AR 72701 | map | directions (479) 444-1500 Visit Site Connect With Us Member Since: 2017 If your business isn't here, contact us today to get listed!