I'm looking through some ACS data on # of households by block group in Santa Clara County. Block Group 2, Census Tract 5002, Santa Clara County, California has 0 households, despite having a population estimate of 737. This is true for the five-year estimates from 2013, 2014, 2015, and 2016.
I thought Census block groups had a population requirement (except for bodies of water, which would be block group 0)?
Any advice or explanation would be appreciated.