The Republic of Test Population 66 is a massive, pleasant nation, notable for its burgeoning Cows population. The hard-working population of 2.451 billion Test Population 66ians 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, Defense, and Welfare. The average income tax rate is 12.7%.

The Test Population 66ian economy, worth 124 trillion Credits a year, is broadly diversified and led by the Gambling industry, with major contributions from Woodchip Exports, Cheese Exports, and Beef-Based Agriculture. Average income is 50,914 Credits, and evenly distributed, with the richest citizens earning only 3.6 times as much as the poorest.

Crime is relatively low, thanks to a capable police force and progressive social policies in education and welfare. Test Population 66's national animal is the Cows, which can occasionally be seen sifting through garbage in the nation's cities.

Test Population 66 is ranked 220,464^th in the world and 5^th in Ares Test Chamber 9 for Most Advanced Defense Forces, scoring 1,058.82 on the Total War Preparedness Rating.