Q&A for How to Calculate Population Density

Divide the number of people in that particular place and at a particular time by the land area.

A bio-reserve is a geographical area set aside for preservation of wildlife and other environmental components.

You would have to know the average number of people living in each unit. Multiply that number by the number of units, and then divide that product by the total area.

All you can do is estimate the current population and compare it to the earlier population. Subtract the smaller number from the larger, then divide the difference by the amount of elapsed time. For instance, your answer might be expressed in terms of people per year.

Population density is a measurement of population per unit of area.

Your answer could be expected to have decimal places. That would not be unusual. In the case of "smaller than 1," that just means there aren't very many people in that specific location.

Because people live in areas measured in square units (such as miles or kilometers), not cube units.

Divide the number of organisms by the density.

Divide the total population being considered by the number of square miles occupied by that population.

Agricultural density is calculated by determining the area of arable (farmable) land divided by the number of farmers in that region.

You would need to find the land size in order to find the density. Calculate the area of your land, then do the instructions listed in this article.

Use the unit of measurement commonly used in the area being depicted, or the unit commonly used by your target audience.

You would divide the total population by the density to get the area in square miles.

You know you have 1,980 square miles. You know that each square mile contains an average of 460 people. So you multiply 1,980 by 460 to find the total population.

A square mile contains 2.59 square kilometers. So assuming homogenous density, you can divide the square-mile population by 2.59 to calculate the square-kilometer population.

There is no firm delineation. They are fairly vague terms.

It can't be done without considerably more information (such as neighborhood areas and populations).

The percentages of male and female are irrelevant. You need the total population and the amount of area in which they live or work (given in square units).

If you know the area in square units and the density of that area, multiply the area by its density.

If the area is square or rectangular, multiply the length by the width (each in kilometers). If you're dealing with some other shape, use an appropriate formula to find the amount of area. If the shape is irregular, break it into squares, rectangles, triangles, etc. and add all of their areas together.

Without the area, it's not possible.

You probably mean square kilometers. Divide the population by the known number of square kilometers. The quotient will be expressed in "people per square kilometer." That's the density.

You would have to know the land area associated with each density. In each case multiply the land area by the density. That gives the population of each area. Then add all the populations together.

Population density is normally expressed as "people per square unit of land area." Typically the area unit is a square (square kilometer,1 km x 1 km, or square mile, 1 mile x 1 mile). If the density is described as "the density within a given distance of a fixed point, the area in question would be a circle whose radius is the given distance. Here the density would still be expressed as "people per square unit of area."

If, for example, the density is 500.5 people per square mile, that just means that in two square miles they counted 1001 people, or in four square miles they counted 2002 people, etc.

Population density is just a statistical description of real-life conditions. However, What causes it to be higher or lower is a matter of various factors, including socio-economic, geographical and meteorological conditions.

If you are considering a predicted percentage gain in population (say, 5%), the quickest thing to do is to multiply the current population by 1.05.

In this case you'd be talking about a circular area with a one-mile radius. You'd have to know the population within the circle and then divide it by 3.14 to get "people per square mile."

22 / [(1.5)(1.5)] = 22 / 2.25 = 9.77 animals per square meter.

The unit of density is people (or persons) per square kilometer.