The Melancholy of Haruhi Susumiya is a gargantuan, cultured nation, ruled by Haruhi Suzumiya with an even hand, and notable for its frequent executions, public floggings, and otherworldly petting zoo. The hard-nosed, hard-working, humorless, devout population of 10.657 billion Haruhi Susumiyans are highly moralistic and fiercely conservative, in the sense that they tend to believe most things should be outlawed. People who have good jobs and work quietly at them are lauded; others are viewed with suspicion.

The medium-sized, corrupt government juggles the competing demands of Law & Order, Administration, and Industry. It meets to discuss matters of state in the capital city of Haruhivill. The average income tax rate is 73.8%.

The frighteningly efficient Haruhi Susumiyan economy, worth a remarkable 2,476 trillion Haruhis a year, is fairly diversified and mostly comprised of black market activity, especially in Information Technology, Uranium Mining, Retail, and Woodchip Exports. State-owned companies are reasonably common. Average income is an amazing 232,381 Haruhis, and evenly distributed, with the richest citizens earning only 3.2 times as much as the poorest.

The government has spent days debating the merits of a petition calling for a ban on sporks, economic output is rising as the chronically depressed are persuaded not to burden society, prisoners due for execution often use their final statement to complain about soggy bread rolls, and citizens are deeply regretting challenging the government to be honest about its intentions. Crime, especially youth-related, is totally unknown, thanks to a well-funded police force and progressive social policies in education and welfare. Haruhi Susumiya's national animal is the Mo-Pig, which teeters on the brink of extinction due to widespread deforestation, and its national religion is Harhuiism - SOS Brigade.

Haruhi Susumiya is ranked 12,048^th in the world and 2^nd in SOS Brigade for Lowest Crime Rates, with 97.75 law-abiding acts per hour.