In the WEST there are 20.4 million households, 21% of all U.S. households

13% were built before 1940
23% were built after 1980

21% of Single-family homes were built over a basement*
47% were built over a crawlspace
40% were built on a slab

56% had a garage or carport

80% had natural gas available in their neighborhood
69% actually used natural gas

38% used air-conditioning**
27% used central air-conditioning

59% used natural gas for space heating

28% used electricity

5% used wood