MOCO Map of the Week--Average Household Size by Census Tract

MOCO Map of the Week is back after a short hiatus.  The next couple of maps will look at data on Households in Montgomery County.  Today's map shows the average household size by census tract using 2010 census data.*

The average household size in Montgomery County census tracts ranges from 1.3 to 3.99.  The average for the county as a whole is 2.7.  This is just slightly higher than the average household size for Maryland (2.6) and the DC metro area (2.64).

Two patterns stand out from the map below.  First, most tracts with high average household size are outside the beltway, in exurban areas in the county.  Second, tracts with low average household size tend to be located inside the beltway, or in between I-270 and Rockville Pike, where the majority of the county's multifamily housing is located. 

* Data are from the 2010 Census Summary File 1