So: here in Portland we had a pretty large showing for the No Kings march. This was no surprise. There are discussions about crowd size, but that kind of thing is like comparing sizes in other venues, the people doing the estimates have a vested interest in either under or over-estimation.
I will be generous and give the range of 30,000 to 50,000 the benefit of the doubt.
The Portland metro area is officially defined as thePortland–Vancouver–Hillsboro Metropolitan Statistical Areaand includes seven counties: Clackamas, Columbia, Multnomah, Washington, and Yamhill in Oregon, and Clark and Skamania in Washington
So the overall population of the area is between 2.4 and 2.7 million. Now despite the long-term "blue" nature of the area, there is a couple of things to consider: 1) the reds aren't voiceless, they do probably constitute around 40%, so we can safely assume they will have a smaller relative need to attend. So of the 2.55 million, we can safely reduce the total for the area population to around 1.5 million that would be interested in the march.
Then there is the nature of the outlying areas. Clark and Skamania can be safely pulled out. They really don't like to be thought of as part of Portland so their contribution can be minimal. I am pulling around 300K from the total of "interested" to yield around 1.2 million. Yamhill and Columbia only add around 150K so that will pull out another 100K to yield a total population of potential interested parties to around 1.1 million.
I will use the official estimate of 40,000 for the next step. 40,000/1,100,000 yields around 3.6% of the target population that feel they need to demonstrate.
Tell you the truth, being a long term resident of the area, that feels about right.
Now onto the next completely personal observation with little or no "scientific validation". I felt that there was a very large contingent of grey hair. Portland is a pretty young city. Best numbers I can come up with is only around 18% being over 60. But I might be wrong here, but my feel of what I observed was upwards of 40% (a straight scientific wild ass guess) was grey hairs.
Now I am not at all certain what his means, I am just presenting my observations.
I will wait a couple of days to see if the march has any effect.
I am agnostic on this.