I just completed doing a comparison of Census Population shifts between 2000 and 2010 at the smallest Census geographic level, known as the block level. This was a bit of a challenge as these small data areas actually changed dramatically between the two censuses and many boundaries did not remain the same. After working with correlation tables provided by the Census Bureau I can provide the following map which illustrates where we grew and where we lost population.
As I noted here, the Town of Dennis lost 1,766 year-round residents between 2000 and 2010. The map illustrates that the population loss was spread out pretty evenly through out town, with every village having areas with fewer year-round residents. The map also identified an under-count in the 2000 Census, the Eagle Pond Nursing Home does not appear to have been counted by census takers in 2000, thus what appears to be a dramatic 117 person increase in population in an Industrial Zone although only four new homes were constructed within this Census geographical area in this time period.
Some of the changes are pretty obvious to the trained eye, there are neighborhoods with older, and more recent, subdivisions which started building new homes, accounting for population growth in these areas. Other changes are more subtle, a shift between seasonal and year-round housing having some neighborhoods with more people and others with fewer people on Census Day.
The next step is to do the same analysis for the actual housing stock.