Denton, city (1990 pop. 66,270), seat of Denton co., N Tex.; inc. 1866. The city lies in an agricultural and industrial region, but the economy is based on education and research. The Univ. of North Texas, Texas Woman's Univ., and the Denton State School for the mentally retarded are there. Denton is also known as a city of roses. The North Texas State Fair is held there annually. The city is also the site of the first federally sponsored regional emergency and disaster center, where preparedness operations are undertaken.