2003 Almanac (page 513) 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 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 Population 345400 356000 365800 377500 387100 396700 407300 418300 436600 457400 474300 485400 496000 503600 511300 521500 527700 540400 553900 566300 Avg. Daily VMT/1000 6619 7040 7365 8024 8527 8962 9518 9940 11219 11320 11461 11635 12150 12695 13216 13621 13876 14343 14819 15299 A portion of Kern County lies within the Mojave Desert Air Basin.