From the UC Berkeley Urban Displacement Project:
There is an abundance of data to indicate that the Sonoma County housing situation in the low and moderate income range will worsen, according to a new study from UC Berkeley.
One key point from the study:
Neighborhoods with rail stations, historic housing stock, an abundance of market-rate developments and rising housing prices are especially in danger of losing low-income households.
More in-depth reading:
The Future of Displacement by Karen Chapple
The Urban Displacement Project
More gentrification, displacement in Bay Area forecast by Kathleen Maclay