The Republic of I-81 is a mammoth, efficient nation, notable for its spontaneously combusting cars. The hard-working population of 9.997 billion I-81ians are free to succeed or fail in life on their own merits; the successful tend to enjoy an opulent (but moralistic) lifestyle, while the failures can be seen crowding out most jails.

The relatively small, pro-business government juggles the competing demands of Defense, Law & Order, and Welfare. Citizens pay a flat income tax of 8.3%.

The very strong I-81ian economy, worth 602 trillion cars a year, is fairly diversified and led by the Tourism industry, with major contributions from Gambling, Furniture Restoration, and Retail. Average income is 60,242 cars, but there is a large disparity between incomes, with the richest 10% of citizens earning 274,163 per year while the poor average 8,092, a ratio of 33.9 to 1.

Crime is a problem, with the police force struggling against a lack of funding and a high mortality rate. I-81's national animal is the driver.

I-81 is ranked 157,291^st in the world and 1^st in Interstate 81 for Nicest Citizens, with 12 average smiles per day.