I don't see a poll. It depends on the site. I have one that is about 250K, which is SEO/website related, so most visitors would have the Alexa Toolbar. Otherwise the others are in the 500K range.
141k and dropping for my occult forum 480k for my personal site 4million for my druid grove page *shrug*
well, here are my alexa ranks! http://surfsieve.com/ : 239,941 Launched last month, got some huge hits in the blog and on the site! http://goodwebdirectory.com/ : 253,448 Launched last month, since it's a free web directory, so the traffic is always there, also i launched a forum in it, so am expecting a better alexa rank in the next update or so! cheers!
the decent one i have is http://www.elinkdirectory.co.uk and is currently hovering around 160,000. I've set this up a few months ago .. earned nothing from it. In fact it cost me money. Oh well, I hope it brings a little benefit to the people whose sites are on there
Don't forget it is only because of people using Alexa toolbar, mainly in Asia. If you have a site for the US, chances are you have a high Alexa number.
I have Two Sites Proxin.cn has a traffic rank of: 6,067,673 Proxy.iandron.cn has a traffic rank of: 774,991
i don't think too many people have alexa toolbar installed, it's the mozila "search status" plugin for the firefox that makes the difference!