From Infographic: Then and now
Sources:
- Indoor plumbing then: Lutz, James D. Lest We Forget, a Short History of Housing in the United States. Berkeley: Lawrence Berkeley National Laboratory, 2001, pp.1-189. Retrieved from http://eaei.lbl.gov/publications/lest-we-forget-short-history-housing-united-states and now: Rooms, Size, and Amenities—All Housing Units. 2011 American Housing Survey Summary Report Tables. U.S. Department of Housing and Urban Development. Retrieved from http://www.huduser.org/portal/datasets/ahs.html
- Urban vs. rural then: Table 1. Urban and Rural Population: 1900 to 1990. US Census Bureau. October 1995. Retrieved from http://www.census.gov/population/censusdata/urpop0090.txt
and now: 2010 Census Urban and Rural Classification and Urban Area Criteria. U.S. Census Bureau, 2013. Retrieved from http://www.census.gov/geo/reference/ua/urban-rural-2010.html