California

6 interstates and 15 loops and spurs · 2,394 miles · 1367 stops

• I-5 795 miles in California · 386 stops · 13 likely clean California → Oregon → Washington SouthboundNorthbound
• I-8 169 miles in California · 68 stops · 2 likely clean California → Arizona WestboundEastbound
• I-10 242 miles in California · 142 stops · 9 likely clean California → Arizona → New Mexico → Texas → Louisiana → Mississippi → Alabama → Florida WestboundEastbound
• I-15 282 miles in California · 121 stops · 4 likely clean California → Nevada → Arizona → Utah → Idaho → Montana SouthboundNorthbound
• I-40 153 miles in California · 24 stops California → Arizona → New Mexico → Texas → Oklahoma → Arkansas → Tennessee → North Carolina WestboundEastbound
• I-80 196 miles in California · 137 stops · 2 likely clean California → Nevada → Utah → Wyoming → Nebraska → Iowa → Illinois → Indiana → Ohio → Pennsylvania → New Jersey WestboundEastbound

Los Angeles area

• I-105 16 miles in California · 11 stops · 3 likely clean California WestboundEastbound
• I-110 20 miles in California · 19 stops California SouthboundNorthbound
• I-210 43 miles in California · 45 stops · 1 likely clean California WestboundEastbound
• I-405 72 miles in California · 72 stops · 2 likely clean California SouthboundNorthbound
• I-605 28 miles in California · 23 stops · 1 likely clean California SouthboundNorthbound
• I-710 21 miles in California · 26 stops California SouthboundNorthbound

Oakland area

• I-580 74 miles in California · 57 stops · 3 likely clean California WestboundEastbound
• I-880 43 miles in California · 47 stops California SouthboundNorthbound

Riverside area

• I-215 54 miles in California · 42 stops · 2 likely clean California SouthboundNorthbound

Sacramento area

• I-505 20 miles in California · 8 stops California SouthboundNorthbound

San Diego area

• I-805 28 miles in California · 33 stops · 3 likely clean California SouthboundNorthbound

San Francisco area

• I-280 53 miles in California · 38 stops · 1 likely clean California SouthboundNorthbound

San Jose area

• I-680 69 miles in California · 52 stops · 2 likely clean California SouthboundNorthbound

Tracy area

• I-205 9 miles in California · 6 stops California WestboundEastbound

Vallejo area

• I-780 6 miles in California · 10 stops California WestboundEastbound

Towns with the most stops