The country of bulgaria has a population of 7 037 935. Estimated population living in urban areas at midyear as a percentage of the total midyear population in a country. Population density is a way of describing how crowded a place is with people. Population density is usually expressed in terms of items or organisms per unit area. The definition of urban varies from country to country, and, with periodic reclassification, can also vary within one coun try over time, making direct comparisons difficult. An example would be people per square mile, which is calculated by dividing the total number of people by the land area in square miles. A set of tables used in this collection system includes ruralurban breakdowns. This, in combination with the total population, equates to a population density of approximately 62 people per square kilometer. Population density is the ratio of people to physical space. Population density synonyms, population density pronunciation, population density translation, english dictionary definition of population. The impact of urbanization on the environment is widely classified to have social, economic and environmental problems. How the scale of human population density affects biodiversity. Chapter 2 spatial distribution and density of population. In simple terms, population density refers to the number of people living in an area per square kilometre.
Density of population article about density of population. The world population distribution, density and growth the people of a country are its real wealth. The most densely populated region was uusimaa with a density of approximately 184 inhabitants per square kilometer. The nys prevention agenda 202017 is an ambitious effort to make new york the healthiest state in the nation and focuses primarily on. This is about three times the national average figure 2. Build background about population density explain to students that population density describes the number of individuals occupying an area in relation to the size of that area. Introduction to population density national geographic. From 1960 to 2015, the population density in all coastal counties excluding those in alaska will have grown from 187 to 327 persons per sq mi. Census bureau, 1960 census of the population population division new york city department of city planning bronx queens staten island manhattan. The name tanzania itself derives from the countrys two states, zanzibar and tanganyika.
Population density the density of population in a given area. Introduction to population growth population genetics. Oecd glossary of statistical terms population density. In this image of metal grains, the user wants to measure the number of black holes contained within each of the white regions. The population density is the number of population per unit of total land area of a country.
Tell students that there is a formula for figuring out population density. It is frequently applied to living organisms, most of the time to humans. The most crowded portion of a coastal area is generally that part bordering an ocean or estuary. Census bureau, 1950 census of the population population divisionnew york city department of. Frenkel and ashkenazi 2008 identify five different systems for measuring sprawl growth rates, density, spatial geometry, accessibility and aesthetic measures with settlement patterns identified as sprawl by one measure not necessarily meeting the other characteristics. We described procedures for drawing samples from the populations we wish to observe. It is they who make use of the countrys resources and decide its policies. Population density is often used to estimate the number of people in any given area of a country. Population density is expressed in terms of the number of permanent inhabitants per unit area, usually per sq km. Tandlguru north america knowledge organiser revision mat. The united nations statistics division collects, compiles and disseminates data from national statistical offices on population density and urbanization through the demographic yearbook data collection system. It is calculated by dividing the population by the area.
Depopulate meaning in the cambridge english dictionary. This article makes two major contributions concerning urban density. Population density definition of population density by the. Because of significant national differences pdf 95 kb. Definition demography can be defined as the study of human populations including their composition, distributions, densities, growth and other characteristics as well as the causes and consequences of changes in these factors. Introduction to population density national geographic society. A population distribution is a statement of the frequency with which the units of analysis or cases that together make up a population are observed or are expected to be observed in the various classes or categories that make up a variable. Indicator population density 1,000 persons per square mile.
Population density is the ratio between total population and surface land area. How the scale of human population density affects biodiversity there is much scientific evidence that global human activity is affecting species richness, in particular through anthropogenic global warming, landuse changes and pollution. Introduction to population growth population genetics and. For example, france has a population of 60,561,200, and an area of 551,695 square kilometres, so its population density is about 109. Population density synonyms, population density pronunciation, population density translation, english dictionary definition of population density. Population density definition is the number of people living in each unit of area such as a square mile. A group of individuals or items that share one or more characteristics from which data can be gathered and analyzed.
Population density is the measure of the number of people per unit area, commonly represented as people per square mile or square kilometer. For working out density of india, the entire area and population of those portions. Population density is an often reported and commonly compared statistic for places around the world. List of countries and dependencies by population density. Population density by census tract new york city, 1960 persons per acre 200 and over 150 to 199.
Measuring population density population density is the measurement of the number of objects per unit of area. Note that population density, according to this definition, depends on the scale of the sampling area used, and is hard to define as a realvalued continuous function over the area in question. Population density, migration, and the returns to human. The population density p t at a given point of time can be given as. Migration to highgrowth centers promises a pathway out of poverty by improving economic returns on human capital investments see, for example, harris and todaro, 1970, foster and rosenzweig, 2008, yamauchi, 2004. After completing this chapter the learner is able to. Zanzibar is an archipelago off the coast of tanzania. Tanzania, officially the united republic of tanzania, is a relatively large country in east africa that shares its borders with many countries, including kenya, uganda, rwanda, zambia, malawi, mozambique, burundi and the democratic republic of the congo. Population density definition of population density by. Yet empirical research usually finds density only weakly related to individuals attitudes and. Thus, population pressures on farmland in rural areas can be relaxed through labor movement to urban sectors. Taylor johns hopkins university the classical theory about effects of high residential density is negative, stating that high density produces negative social attitudes and undesirable behaviors. Uninhabited territory and large inland water areas are sometimes excluded when computing density. The world population why do people prefer to live in certain.
Explain to students that population density describes the number of individuals occupying an area in relation to the size of that area. Indicator population density 1,000 persons per square. Population density simple english wikipedia, the free. Depopulation definition of depopulation by the free. The statistic shows the population density of finland in 2018, by region. Population density by census tract new york city, 1950 persons per acre 200 and over 150 to 199. Measure of the intensity of land use, expressed as number of people per square kilometer or square mile. With 947,300 square kilometers of land, tanzania is the 23rd largest country in the world and the th largest in africa. Population density is a measurement of population per unit area, or exceptionally unit volume.
Population density is the measure of the population number per unit area, according to. Previous studies on population parameter, population density and encounter rate of monal pheasant show variation in population density and encounter rate in. Readings in international environment statistics, ece standard statistical classification of land use, unece, geneva, conference of european statisticians. In statistics, population may refer to people, objects, events, hospital visits, measurements, etc. Imagepros population density commandisusedtooverlayasetof previously stored outlines onto the. Thus, it is clearly visible, that natality n and immigration i add to a population thus increasing population whereas, mortality m and emigration e decrease the population. All elements, individuals, or units that meet the selection criteria for a group to be studied, and from which a representative sample is taken for detailed examination. The evolution of city population density in the united states. How scientists define and measure population size, density, and distribution in space. Population definition, the total number of persons inhabiting a country, city, or any district or area. Of the several methods of describing the spatial distribution of population the simplest way is percentage distribution of population over the geographical areas. On the other hand, fauna and flora sustain human beings and there is a need for ways to reconcile. First, we construct an electronic database containing land area, population. Population, sample and sampling distributions i n the three preceding chapters we covered the three major steps in gathering and describing distributions of data.
This is a list of countries and dependent territories ranked by population density, measured by the number of human inhabitants per square kilometer, and also sortable by total area and by population the list includes sovereign states and selfgoverning dependent territories based upon the iso standard iso 31661. In the domain demor in new cronos the population density is calculated using the average midyear population. The population density of a country or city or other place is a number showing how crowded that place is. Population is the entire pool from which a statistical sample is drawn. Population density people per km 2 by country in 2018 this is a list of countries and dependent territories ranked by population density, measured by the number of human inhabitants per square kilometer, and also sortable by total area and by population. This ratio can be calculated for any territorial unit for any point in time, depending on the source of the population data. Depopulation definition of depopulation by the free dictionary. Population density helps show the difference between a small but dense city and a widely spread out town, even if the absolute population is the same. It shows the relationship between a population and the size of the area in which it lives. Tanzania population 2020 demographics, maps, graphs. Economic growth is often accompanied by social mobility.1147 1462 413 1383 69 1140 792 1327 844 1237 666 674 1125 407 610 880 1482 1276 1164 211 1337 1460 370 79 1354 520 1271 1471 149 1322 993 184 1440 309 576 1002 1028 362 1287