2003 Almanac (page 512) Table D-64 San Francisco Bay Area Air Basin - Solano County: Population and VMT Trends San Francisco Bay Area Air Basin: Solano County Surface Area = 360 square miles Parameter 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 Population 185500 189800 192200 197300 205100 213900 222400 232500 244200 253300 256600 259600 259900 258400 258200 261400 264700 269900 273800 279400 Avg. Daily VMT/1000 3667 3870 4021 4282 4614 4853 5138 5435 5656 5675 5673 5692 5711 5725 5868 5994 6145 6307 6469 6661 A portion of Solano County lies within the Sacramento Valley Air Basin.