2002 Almanac (page 483) Table D-42 Sacramento Valley Air Basin - Glenn County: Population and VMT Trends Sacramento Valley Air Basin: Glenn County Surface Area = 1320 square miles Parameter 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 Population 22700 22900 23400 23300 23600 23700 23700 24300 25000 25700 26150 26500 26600 26550 26950 26800 26900 26750 26700 26900 Avg. Daily VMT/1000 503 517 564 593 623 669 681 730 768 709 719 748 776 764 763 719 652 653 670 685