I live in that area, don't have a playgroup, just friends that we have regular playtimes with on an individual basis...mostly girls. We take allot of classes at the local community centers, mainly Peninsula Park which is on Rosa Parks near I-5. I highly recommend looking at what they have to offer. It is well maintained, and on a big park w/multiple playstructures, a water feature, baseball fields, rose garden and outdoor swimming pool. They have all sorts of classes ranging from soccer to ballet to music and everything in between. My daughter is almost 4, so don't know how good a fit it would be, although she does play really well with my friends almost 3 year old son. Would be happy to meet at a park and at least talk about what there is to do around Portland w/kids. FYI my husband is from Michigan, we have lot's of family still there. Portland is a great place to live, and close to the Gorge, the mountains and the beach. Welcome to your new home! Let me know if you want to get together. My daughter is in preschool M and Wed, and w/her grandparents most Friday mornings.