As a case in point, in 2009, industry consumed 256 million tons of oil equivalent, versus 262 mtoe for the residential sector (ie households).
And it's also true that residential lighting is not a big energy consumer, even though it still represents close to 10% of US electricity use (not of overall energy use, of course).
http://www.iea.org/publications/freepublications/publication...
OTOH, if you live in a climate where heating is necessary, and even more if you heat with electric heat, there's obviously little gain to be had by switching to LEDs.
In any case, I'll note that the "residential" line does indeed read 262 mtoe but the "production" line at the top is 1,686 mtoe, leaving the "residential" category consuming something like 15% of total production.
Most novices and outsiders would probably be content to count non-residential energy use as "industrial," even if that doesn't match the IEA's more detailed classification. Especially energy-intensive commercial activities that I imagine must make up the "transport" category (like aviation, trucking, railroads, and shipping).
Actually, residential energy consumption is expressed in final energy terms. This is the actual consumption by end-users of energy carriers (e.g. electricity, gasoline, diesel, natural gas, etc...). The sum of all these end-use consumption is the Total Final Consumption (or TFC).
This is to be distinguished from primary energy sources (crude oil, coal, natural gas, etc...), which are used to produce the energy carriers that end-users consume (e.g. in a power plant to produce electricity, or in a refinery to produce gasoline). The sum of all primary energy sources consumption is the Total Primary Energy Supply (TPES).
Since residential energy consumption is reported in final terms, the correct denominator to calculate the share you were looking for is TFC. Residential energy consumption thus accounts for 17.9% of TFC, versus 17.7% for industry.
The non-residential sector is denominated in IEA terminology as 'Commercial and Public Services'. This sector encompasses office buildings, hotels & restaurants, education & research, hospital & healthcare, sports facilities and public administrations. In short, buildings that house the tertiary sector. Therefore it can't be identified at all with the industry (btw industrial buildings consumption are accounted for in the 'industry' sector).
In total, residential and non-residential buildings account for 32% of TFC in the US, second only to transport (39.5%).
Disclosure: I've worked as an analyst at the IEA for 4 years.