I just generated some comparative statistics on party registration in Oregon that may be pertinent to voters thinking about Measure 90, the Top Two Primary.
The numbers are pretty amazing. Registration in the state is about even with 2012–itself an important metric of a growing state.
You can compare county by county to see where population growth is concentrated–Benton, Clackamas, Crook, Deschutes, Jackson, Jefferson, Linn, Marion, Multnomah, Polk, and Yamhill are the only counties that have more registrants than in 2012–while other growing counties like Washington and Benton are barely in the negative. Typically, voter registration falls in off year elections.
However, what is even more fascinating is the pattern in party and non-party affiliation. Unaffiliated registrants are the only category growing among the three major categories (other parties, such as the Independent party, are seeing growth as well).
Some of the totals are stunning–Unaffiliated registrants up 9.06% in Benton, 7.98% in Clackamas, 12.42% in Deschutes, 11.6% in Jackson, 11.28% in Marion, 10.10% in Multnomah, 9.17% in Washington, and 9.74% in Yamhill.
Meanwhile, Democratic and Republican registration is down between 5% and 8% in most of these counties. Whatever we do about our primaries, we cannot continue to shut out the largest segment of registered voters.