There are several great fly-in communities in the area, if you can find (and afford) a house in one. The newest is as Sportsman Airpark in Newberg. Last time I was there several spec homes were on the market for less than they were offering lots for a couple years ago. There are older fly-in communities at Dietz, Skydive Oregon, Sunset and Olinger. A couple of the airports on the East side of Chehalem also has a couple of houses. Valley View in Estacada has some lots and houses. There are even a couple that don't even show up on charts, such as Aeroacres Airpark in Oregon City. North of Vancouver, Washington in Battleground is arguably the most beautiful option (and expensive, all 3 acre lots) at Parkside. THere was a beautiful 5 acre lot with views of Mt Hood and the Columbia River Gorge for sale on a grass strip in Washougal, WA. Not sure if its still available, but its a great spot. Further away, but very popular and in the news because of the through-the-fence issue is Independence, just north of Salem.
Can you tell I really want to live on an airpark and did a bunch of research a couple years ago? Unfortunately my wife isn't into the idea. Runwayfinder.com is a great way to track down options because you can flip back and forth between the chart view and satellite view to see what's around each field, and there are loads of options within 50 miles of Portland.
As for hangers, Twin Oaks is probably your best bet, home of EAA105's chapter hanger. They just completed a new row of hangers, and I think are planning more. Most anywhere else you'll probably need to get on a wait list now in anticipation of your move.
Good luck!