2002 Almanac (page 491) Table D-68 San Joaquin Valley Air Basin - Kern County: Population and VMT Trends San Joaquin Valley Air Basin: Kern County Surface Area = 5580 square miles Parameter 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 Population 342100 354000 364900 374900 386800 396700 406500 417300 428700 448700 469100 485500 495900 505800 512800 520000 530300 536500 549300 563500 Avg. Daily VMT/1000 7150 7468 7972 8346 9071 9567 10004 10585 11023 12427 12519 12655 12847 13397 14001 14604 15054 15426 15904 16403 A portion of Kern County lies within the Mojave Desert Air Basin.