▁Ocean . ▁ ▁S urr ounding ▁municipal ities ▁O da w ara ▁Hir ats uka ▁ Ō iso ▁Nak ai ▁ ▁History ▁Nin omi ya ▁was ▁the ▁location ▁of ▁the ▁second - high est ▁ranked ▁shr ine ▁in ▁S ag ami ▁Province , ▁K aw awa ▁S hr ine , ▁which ▁is ▁mentioned ▁in ▁He ian ▁period ▁records , ▁and ▁claims ▁to ▁have ▁been ▁established ▁by ▁the ▁semi - legend ary ▁Emperor ▁Su in in . ▁As ▁a ▁minor ▁coast al ▁settlement , ▁it ▁was ▁under ▁the ▁control ▁of ▁the ▁later ▁H ō j ō ▁cl an ▁of ▁O da w ara ▁during ▁the ▁S eng oku ▁period . ▁In ▁the ▁E do ▁period , ▁it ▁was ▁nomin ally ▁part ▁of ▁O da w ara ▁Domain . ▁After ▁the ▁Me iji ▁Rest oration ▁and ▁with ▁the ▁establishment ▁of ▁the ▁district ▁system ▁in ▁ 1 8 7 8 , ▁the ▁area ▁came ▁under ▁the ▁control ▁of ▁. ▁In ▁April ▁ 1 8 8 9 , ▁Nin omi ya ▁village ▁merged ▁with ▁four ▁neighbor ing ▁villages ▁to ▁form ▁Az uma ▁and ▁on ▁March ▁ 2 6 , ▁ 1 8 9 6 ▁Y ur ug i ▁District ▁became ▁part ▁of ▁modern ▁N aka ▁District . ▁Az uma ▁was ▁elev ated ▁to ▁town ▁status ▁on ▁November ▁ 3 , ▁ 1 9 3 5 ▁and ▁was ▁renamed ▁Nin omi ya . ▁ ▁Econom y ▁The ▁local ▁economy ▁of ▁Nin omi ya ▁is ▁based ▁primarily ▁on ▁agricult ure ▁and ▁commercial ▁fish ing . ▁The ▁town ▁is ▁also