The Grand Empire of Potomackia is a colossal, cultured nation, ruled by President Ewan Yoak with an even hand, and notable for its free-roaming dinosaurs, daily referendums, and devotion to social welfare. The hard-nosed, humorless, devout population of 5.784 billion Potomackians have some civil rights, but not too many, enjoy the freedom to spend their money however they like, to a point, and take part in free and open elections, although not too often.

The medium-sized, corrupt government juggles the competing demands of Defense, Industry, and Administration. It meets to discuss matters of state in the capital city of Elizabethtown. The average income tax rate is 79.0%, and even higher for the wealthy.

The frighteningly efficient Potomackian economy, worth a remarkable 1,182 trillion dollars a year, is broadly diversified and dominated by the Arms Manufacturing industry, with significant contributions from Book Publishing, Information Technology, and Retail. Black market activity is rampant. Average income is an amazing 204,483 dollars, and distributed extremely evenly, with little difference between the richest and poorest citizens.

Armed police are cracking down on untaxed collectable-card-trading in local junior schools, seven-year-olds debate for weeks on the merits of the Oxford comma, advertisements read like science journal articles complete with extensive references, and the new Liquor Legitimacy Office is besieged with job applications from people who have experience in "statistical sampling methods". Crime, especially youth-related, is totally unknown, thanks to a capable police force and progressive social policies in education and welfare. Potomackia's national animal is the lion, which teeters on the brink of extinction due to widespread deforestation, and its national religion is Christianity.

Potomackia is ranked 17,264^th in the world and 60^th in United Kingdom for Highest Average Tax Rates, with 79 Effective Tax Rate.