With 284 precincts reporting out of 638, the 39-year-old held a lead of 67,516 votes or 57 percent to 50,314 or 43 percent for veteran Batesville attorney Flip Phillips, 65.
Four years ago, more than 377,000 votes were cast in each of two Supreme Court races in the northern district comprised of 33 counties.
The race has drawn attention by money from political action committees and at least one out-of-state group fighting Phillips, which they have termed "a trial lawyer" who will turn the court over to his "greedy friends."
Phillips countered that Coleman lacks the experience to sit on the court and hasn't tried a single case, an accusation Coleman denies.
The winner will replace Justice George Carlson of Batesville, who retires at year's end.
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