![]() Geiger, Summer 2020, and modified Summer 2022. The range of population density starts with white polygon, depicting 0 to 5 person per sq km. Interactive functionality: Esri's ArcGIS API for JavaScript. The range of population density has been classified into certain intervals and shown through respective colors.With the help of population map, students and researchers can understand the overall distributing of population density in the world.Philadelphia, however, does have the largest number of census tracts in Pennsylvania. Keep in mind that Delaware County is adjacent to Philadelphia, and Philadelphia County is the only county with no municipalities (the city is both a municipality and a county). These are the top three areas in each geographical category along with their population densities all numbers are expressed as the number of people per square mile. In some cases family size can be cultural, differentiating those that value large numbers of children or multi-generational families from those with other priorities. Areas with higher median ages will have smaller numbers of members of households, and areas with larger numbers of children in most families will have much lower median ages. ![]() Family size can reflect the ages of members of the household. Homes with larger numbers of occupants will, of course, increase population density, and vice versa. And finally townships are mostly rural, except when they are immediately adjacent to cities and boroughs.Īnother example that demonstrates how population density shows how people live is how it reflects family size. Boroughs represent an urban development usually smaller than cities (but no less densely populated, as the table below shows). As noted above, cities generally have the largest relative populations in their counties and likewise, the largest population densities. Rural living, whether on farms or in forested landscapes or even desert areas, feature the maximum distances between dwellings.Ī similar, but not identical, distinction that describes where people live is the difference between the three types of municipalities in Pennsylvania: cities, boroughs and townships. The key attraction for those leaving cities and smaller towns for suburban housing developments starting in the 1950s was the separation between dwelling units while keeping the neighborhood-based lifestyle. So do city blocks of row homes with small to non-existant backyards. Taller residential buildings that are more likely to be found in larger cities reduce that distance tremendously. Census tracts are of widely varying sizes because they contain relatively consistent populations.įor one example of its ability to describe where people live, population density measures the relative ground distance between people's residences. An example of the latter are "census tracts," devised by the US Bureau of the Census decades ago to provide an effective framework for the redistricting of US House of Representatives every 10 years and adapted for many other uses since then. Population density is calculated by first defining an area, whether it is outlined by political boundaries or by boundaries defined for other reasons. This area contains a large land area and a relatively temperate climate. Areas of high population density tend to be located between 20° and 60°N. Some areas have a high population density while others have a low population density. It can be used as a factor to try to explain a wide range of other population measures, such as income, politics and access to healthcare. The map above shows that the world population distribution is uneven. It can be used to differentiate urban vs. Urban and rural population in the U.S.Population density is a measure that combines several facts about where and how people live. Population density in California 1960-2018 Population density in New Jersey 1960-2018 metro areas with the highest concentration of high-income households 2011 Population density in Tennessee 1960-2017 The degree of urbanization has also increased, and well over half of the population lives in urban centers. While the United States is not very densely populated compared to other countries, its population density has increased significantly over the past few decades. ![]() However, much of the country is uninhabited, so cities in Russia are much more densely populated than the rest of the country. While this can be an interesting measure of how many people live in a country and how large the country is, it does not account for the degree of urbanization, or the share of people who live in urban centers.įor example, Russia is the largest country in the world and has a comparatively low population, so its population density is very low. Simply put, population density is the population of a country divided by the area of the country. As a whole, there were about 94 residents per square mile in the U.S., and Alaska was the state with the lowest population density, with 1.28 residents per square mile. had the highest population density in the United States, with 10,984.43 people per square mile.
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