The Tropic of Cancer effectively divides the country into temperate and tropical zones. Land north of the twenty-fourth parallel experiences cooler temperatures during the winter months. South of the twenty-fourth parallel, temperatures are fairly constant year round and vary solely as a function of elevation. This gives Mexico one of the world's most diverse weather systems.

There is no de jure constitutional official language at the federal level in Mexico.[200] Mexico has the largest Spanish-speaking population in the world, almost a third of all Spanish native speakers live in Mexico.

The peso (sign: $; code: MXN) is the currency of Mexico. The peso was the first currency in the world to use the "$" sign, which the United States dollar later adopted for its own use.[1] The peso is the 12th most traded currency in the world and by far the most traded currency in Latin America and third most traded in all the Americas.

http://www.mexico.visahq.com

The population of Mexico in 2003 was estimated by the United Nations at 103, 457, 000, which placed it as number 11 in population among the 193 nations of the world. In that year approximately 5% of the population was over 65 years of age, with another 33% of the population under 15 years of age.

Mexico City is the Federal District (Distrito Federal), capital of Mexico and seat of the federal powers of the Mexican Union.