Taxes are going up for residents in two northeastern Iowa counties. Voters in Clayton and Delaware counties have okayed seperate one-cent local option sales tax hikes to improve schools. Residents voted Tuesday, with each vote requiring a simple majority for passage. Clayton County saw more than 17-hundred voters turn out, with the measure passing by 70-to-30 percent. About two-thousand Delaware County voters cast ballots, okaying the measure 61-to-39 percent. The ten-year tax goes into effect in both counties next January, generating an expected million dollars for area schools.