This can be explained by several factors: In general, the average age of the population is increasing, and the share of people aged 80 years and older is growing considerably. At the same time, however, the youngest generation of Danes is decreasing in numbers. Another crucial factor to consider is the number of live births. Over the past 10 years, the fertility rate in Denmark decreased from 1.9 children per woman in 2010 to 1.67 children per woman in 2020. Nearly 61,000 children were born in the country that year.
A significant contribution to the overall population growth relates to migration. Denmark has experienced a positive migration flow over the past decade. During this period, there was consistently a higher number of immigrants entering the country than emigrants leaving it. In fact, immigrants made up around 620,000 people of the Danish population in 2021. Around 42,000 of the immigrants living in Denmark had Polish origins that year, but other large groups were Syrians and Turks.
Further relevant changes in population figures are related to marital status and other family structures. Nowadays, fewer people are getting married in Denmark, especially marriages performed by the national church. Married couple households, however, were the most common household constellation, followed by single women and single men households. Additionally, most households in Denmark were households without children, followed by households with one or two children.