Nearly half of the Dublin City School district's 19 schools received the top rating on the state report card.
According to preliminary results released by the Ohio Department of Education last week, seven Dublin schools were rated "excellent with distinction" while 11 were ranked "excellent" and one "effective."
Davis, Sells and Grizzell middle schools; Deer Run, Pinney, Bailey and Olde Sawmill elementary schools all received the top report card rating.
Coffman, Jerome and Scioto high schools; Chapman, Glacier Ridge, Thomas, Indian Run, Riverside, Scottish Corners and Wyandot elementary schools; and Karrer Middle School were all rated excellent.
Wright Elementary was ranked effective.
Superintendent David Axner said he was pleased with the outcome.
"Every one of the elementaries across the board had an average performance index score increase of 2.1 points over the last two years," he said, of the report card indicator that shows academic achievement of all enrolled students by giving the most points to the highest scores on state tests.
Every school but one also met every state indicator, which determines whether 75 percent of students scored proficient or higher on state tests, and met attendance and graduation requirements.
"Every third and fourth grade achievement was met across the district," Axner said.
Middle schools also did well on report cards, Axner said.
"Our high schools get a lot of attention, which we're proud of, but the fact is all four district middle schools increased their (performance index score), met (adequate annual progress) and met all (state) indicators," he said.
"Middle schools are really driving achievement."
Some areas of the district need work, though. Coffman and Scioto high schools did not meet adequate yearly progress, or AYP.
AYP is a federal mandate that looks at achievement in reading and math as well as attendance and graduation rates through nine student subgroups including economically disadvantaged, Hispanic, multi-racial, limited English proficient and students with disabilities.
"We're working hard behind the scenes to get this changed," Axner said.
"One of the problems is we have all nine subgroups in this district. Some districts have none or one of these subgroups," he said.
"It's not a problem that we have these subgroups, we've closed the achievement gap in every one of these subgroups," Axner said.
"The problem is that students can be counted in more than one subcategory. If we have a student who is Hispanic or Latino, special education, (English language learner) and economically disadvantaged, they hit four subgroups in the district and count in every one of them."
Wright Elementary was rated effective, met AYP and met the value-added indicator, but met only five of eight state indicators.
The state indicators were not met because not enough students scored proficient or better on the fifth-grade reading, math and science tests.
Axner said the tests typically get much more difficult between the fourth and fifth grade, but improvements are being looked at.
"Wright is one of our most diverse schools ... . We take a lot more care and understand that students may have great improvement or growth, but cannot jump over that bar yet," he said.
"We're looking at all grades and have moved staffing around which might support and help some of those areas."