The Principality of Marco is a titanic, pleasant nation, renowned for its burgeoning Rattlesnake population. The hard-working population of 17.92 billion Marcoans 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 relatively small government juggles the competing demands of Law & Order, Administration, and Welfare. The average income tax rate is 17.4%.

The Marcoan economy, worth 783 trillion Latinums a year, is led by the Book Publishing industry, with major contributions from Automobile Manufacturing, Beef-Based Agriculture, and Information Technology. Average income is 43,700 Latinums, and evenly distributed, with the richest citizens earning only 3.6 times as much as the poorest.

Surveillance cameras are banned, military funding has been stripped back, it is illegal to make racist remarks in public, and exorbitant spending on icebreakers breaks the ice at every budget meeting. Crime is moderate. Marco's national animal is the Rattlesnake, which can occasionally be seen sifting through garbage in the nation's cities.

Marco is ranked 131,251^st in the world and 4^th in Mewni for Most Cultured, scoring 64 on the Snufflebottom-Wiggendum Pentatonic Scale.