the number of persons per square kilometer in a country is called
population density
title: Population density text: effect after the scientist who identified it. Examples of the causes in low population densities include: For humans, population density is the number of people per unit of area, usually quoted per square kilometer or square mile (which may include or exclude, for example, areas of water or glaciers). Commonly this may be calculated for a county, city, country, another territory or the entire world. The world's population is around 7,500,000,000 and Earth's total area (including land and water) is 510,000,000 square kilometers (197,000,000 sq. mi.). Therefore, the worldwide human population density is around 7,500,000,000 ÷ 510,000,000 = 14.7 per title: Square kilometre text: Square kilometre Square kilometre (International spelling as used by the International Bureau of Weights and Measures) or square kilometer (American spelling), symbol km, is a multiple of the square metre, the SI unit of area or surface area. 1 km is equal to: It is also approximately equal to: Conversely: The symbol "km" means (km), square kilometre or kilometre squared and not k(m), kilo–square metre. For example, 3 km is equal to = 3,000,000 m, not 3,000 m. Topographical map grids are worked out in metres, with the grid lines being 1,000 metres apart. In each case, the grid lines title: Census in Malaysia text: official document. Information on citizenship should be used with caution as it is subject to content and coverage errors especially for non-citizens as in censuses in most countries. The average annual growth rate was calculated as: The density of persons per square kilometre is the ratio of the population of a given geographic area to the number of square kilometres in the same area. The median age is the age that divides the distribution of the population into two, such that half the population is below the age and half is above it. Dependency ratio refers to the ratio of title: Demographics of Malta text: Demographics of Malta This article is about the demographic features of the population of Malta, including population density, ethnicity, religious affiliations and other aspects of the population. Malta is the most densely populated country in the EU and one of the most densely populated countries in the world, with about 1,265 inhabitants per square kilometre (3,000 per square mile). This compares with about 32 per square kilometre (85 per square mile) for the United States. A census (held every 10 years) was held in November 2005. Inhabited since prehistoric times, Malta was first colonized by Sicilians. Subsequently, Phoenicians, Romans, Byzantines, title: Demographics of Malta text: understood) "Statistics from United Nations" "and National Statistics Office Malta" Notes: Demographics of Malta This article is about the demographic features of the population of Malta, including population density, ethnicity, religious affiliations and other aspects of the population. Malta is the most densely populated country in the EU and one of the most densely populated countries in the world, with about 1,265 inhabitants per square kilometre (3,000 per square mile). This compares with about 32 per square kilometre (85 per square mile) for the United States. A census (held every 10 years) was held in November 2005. Inhabited since prehistoric