# How do you calculate mid-year population?

## How do you calculate mid-year population?

The mid-year population is computed by letting the population increase at an annual geometric rate of 2 per cent for half a year.

**What is a midyear population?**

Also referred to as the mean population, is regarded as the population at July 1 and is assumed to be the point at which half of the changes in the population during the year have occurred. This is the population estimate that is generally used as the base for the calculation of rates.

### How do you estimate projected population?

In the geometric method of projection, the formula is Pp = P1(1 + r)n where, Pp= Projected population; P1 = Population as per the recent census; r= Annual rate of increase or decrease of population; and n = Number of years. This formula is the basis of Malthus’s population projection.

**What will the population be in the UK in 2025?**

59.9 million

The overall population of the United Kingdom would increase from 58.3 million in 1995 to 59.9 million in 2025 and thereafter decline to 56.6 million in 2050 (the results of the 1998 United Nations projections are shown in the annex tables).

#### Why is the mid year population commonly used as the denominator for demographic rates?

Because the population is usually not the same at the beginning and end of the year, the denominator for crude rates is the average of the population at the beginning and end of the one year period.

**How do you estimate a population?**

The population size estimate is obtained by dividing the number of individuals receiving a service or the number of unique objects distributed (M) by the proportion of individuals in a representative survey who report receipt of the service or object (P).

## What will the population of the UK be in 2100?

Although the rate of growth is predicted to slow, the medium-variant projection estimates a global population of 8.5 billion by 2030, 9.7 billion by 2050 and 10.9 billion by 2100. Office for National Statistics figures suggest the UK population will surpass 69.6 million by mid-2029 and reach 72 million by mid-2041.

**What will Germany’s population be in 2050?**

The total population of Germany would increase to 92 million in 2050, of which 33 million (36 per cent) would be post-1995 migrants and their descendants. The potential support ratio would be 2.4 in 2050.

### Where does the mid year population estimate come from?

Usually, it is calculated as an average of end-year estimates. The central statistical office (CSO) is the source in most countries. This data item is used as denominator to calculate most other indicators.

**What was the population of the United States in 2019?**

NST-EST2019-01: Table 1. Annual Estimates of the Resident Population for the United States, Regions, States, and Puerto Rico: April 1, 2010 to July 1, 2019 [<1.0 MB] NST-EST2019-02: Table 2.

#### When do they do population estimates in the UK?

Interactive analysis of estimated UK population change, by geography, age and sex. Annual estimates are for mid-2011 to mid-2016. Mid-year (30 June) estimates of the usual resident population for Middle layer Super Output Areas (MSOAs) in England and Wales by single year of age and sex.

**What was the population of the United States in 2010?**

Annual Estimates of the Resident Population for the United States, Regions, States, and Puerto Rico: April 1, 2010 to July 1, 2019 [<1.0 MB] NST-EST2019-02: Table 2.