What was mexicos population in 1800s?

Today's Mexico was in 1800 a part of

the Spanish viceroyalty of New Spain, incorporating the nominally

subject regions of Central America (Guatemala, El Salvador,

Honduras, Nicaragua and Costa Rica), Cuba, Puerto Rico, the

Philippines, several smaller island territories and much of what is

now the southwestern United States (California, Nevada, Utah, Texas

and parts of Colorado, Arizona, New Mexico and Wyoming), and with a

combined population of around 10 million.

The territory which in 1821 became

independent Mexico - i.e, excluding the island dependencies but

including Central America (until 1823) and the areas lost or ceded

to the US in 1836-54 - in 1800 contained nearly 7 million

people.

The population in 1800 of the

present-day republic of Mexico has been estimated at 5.1 million on

the basis of the census conducted in the early 1790s, adjusted for

omissions and intervening growth. The scale and scope of

under-enumeration however remain unclear from the original returns,

and a slightly higher figure may be appropriate.