As of July 25th, 2020, North Carolina had about 7.8 million voting-eligible adults and 7 million registered voters.
Carolina Demography's analysis of North Carolina State Board of Elections data showed their partisan affiliation was roughly split between, Democrat, unaffiliated, and Republican, with a slight lead to Democrats.
According to the analysis, 2,537,032 or 36% were registered Democrat; 2,344,632 or 33% were registered unaffiliated; 2,104,881 or 30% were registered Republican; and 47,334 or 0.7% were registered to another party.
The greatest concentration of registered Republican voters is in northwest North Carolina.
For example, 60% of registered voters in Mitchell County are registered as Republicans and Mitchell also had the lowest rate of registered Democratic voters.
In Avery, 58% are registered Republican, 53% in Wilkes and 47% in Caldwell.
By contrasts, the lowest percentage of registered Republicans can be found in Hertford and Northampton Counties in northeastern North Carolina, at only 10% each, just 11% in Durham County, and 13% in Halifax and Orange Counties.
You can learn more online at NCDemography.org.