California Air Resources Board 2004 Almanac (web) Sonoma County Appendix D North Coast Air Basin Population and VMT Table D-32 Parameter 1980 1985 1990 1995 2000 2005 2010 Population 38200 42300 49300 53100 57000 63600 68900 Avg. Daily VMT/1000 1392 1886 2452 2638 2734 2998 3313