What it means
To calculate it, you take the total income earned by an area over a period, usually a year, and divide it by its population. "Per capita" simply means "per head".
A region with higher per capita income generally has more purchasing power per person. Governments, economists and businesses use it for many purposes.
It is a quick way to compare countries, to track how an economy changes over time and to decide where to open stores or launch products. A company planning to sell premium goods may look for markets with higher per capita income.
The measure is an average, so it can mislead. If a small number of people earn very high incomes, they lift the average even if most people earn much less.
Median income, which is the middle value when everyone is ranked, is often a better guide to what a typical person earns. There are several variants depending on what counts as total income.
Some versions use gross domestic product, which measures the value of everything produced in the country, while others use national income or the income actually received by households. Adjusting for prices, called a real measure, makes comparisons over time more reliable.
For international comparisons, figures are often converted into one currency, such as US dollars, and adjusted for differences in living costs. Without that adjustment, a figure from a low-cost country can understate how far the income goes.
Finance teams use per capita income in market sizing, in setting prices for different regions and in assessing the credit risk of a country or area. It should always be used together with other indicators such as unemployment, inflation and income inequality.
In practice
Real-world examples
Example 1
A coffee chain compares two cities before choosing where to open its next branches. City A has a per capita income of $45,000 and City B has $28,000. The chain chooses City A for its premium range, and plans a smaller format in City B. It also checks the median income in each city before signing any lease.
Example 2
A regional development agency tracks per capita income across ten years to judge whether its investment programmes are working. It sees steady growth but also a widening gap with the national average. The agency changes its focus towards skills training, and reports the figure to its board each year.
Example 3
A lender assessing a country for a loan looks at per capita income alongside debt levels and growth. A rising figure suggests the tax base and household spending are improving. The lender sets a more favourable interest rate than it offered the year before, while noting the risk from uneven income.
Think of it
Imagine sharing a giant pizza among a group of friends. Per capita income is like calculating how many slices each person would get if the pizza were divided equally, regardless of who actually ate more.
Formula
Calculation
Per capita income = total income / population
Suppose a region has a total annual income of $60,000,000,000 and a population of 2,000,000 people. Per capita income = 60,000,000,000 / 2,000,000 = $30,000. If the population grows to 2,100,000 while total income rises to $65,100,000,000, per capita income = 65,100,000,000 / 2,100,000 = $31,000, an increase of 1,000 / 30,000 = 3.3%.Case study
Seen in the real world
Corvale Retail is a fictional furniture chain created for this illustration. When it planned expansion, it ranked twelve towns by per capita income and assumed the highest-ranked town would deliver the best sales.
The market analyst noticed that the top town had a small number of very wealthy residents and a median income well below the average. A neighbouring town had a lower per capita income of $34,000 but a median of $31,000, showing a more even spread of income.
The illustrative decision was to open in the second town, where more households could afford the product range. First-year sales there exceeded the forecast by 12%, and the analyst began to use both the average and the median in all location studies. The finance director now asks to see both figures in every expansion proposal.
Watch out
Common mistakes
- Treating the average as what a typical person earns, when high earners can pull it well above the median.
- Comparing figures across countries without adjusting for currency and living costs.
- Mixing definitions, such as comparing a figure based on production with another based on household income.
Questions
People also ask
What is the difference between per capita income and GDP per capita?
GDP per capita divides the value of production by the population, while per capita income divides the income received, and the two can differ because of foreign income and retained profits.
Does a higher figure always mean a better life for everyone?
No, because it is an average and says nothing about how income is shared.
How often is it updated?
Official statistics agencies usually publish new estimates each year, so check the latest release and its definitions before using it.