Jersey is the most populated of the crown dependencies and of the Channel Islands. The Demographic statistics of the island includes population density, ethnicity, education level, health of the populace, economic status, religious affiliations and other aspects of the population.

The population of Jersey has grown in each census record since 1931 (although those did not include records during the Occupation by Nazi Germany).

The resident population of Jersey has been increasing during the last 60 years. The resident population increased by 9,100 between 2010 and 2011. The estimated 2020 growth rate is 0.72%.

Pre-census data, there are a number of estimates for Jersey's population. It was around 2,000 in 4000-3000 BC; 6,000 in 1050; 10,000 in 1331; and between 10,000 and 20,000 in the 16th and 17th centuries.

From the 16th to 19th centuries, Jersey was home to a number of French religious refugees, possibly up to 4,000 at a time. In the first half of the 19th century, tax advantages and a better climate saw a boom in Jersey's population. This also needed a large immigrant population, with significant movement from Scotland and Ireland.

Before 1851 and 1921, Jersey's population fell significantly, but the number of French people rose by more than 3,000. These were mostly agricultural workers (not replacing the British migrants).

From 1821, Jersey conducted an annual census (figures to the right). In 1951, the population was 55,244. It has grown every decade since then, and the rate of growth now is very high (1% per year in 2019). This is due to the growth of the finance industry and tourism.

In 2021, the total resident population of Jersey is 103,267, although the CIA World Factbook estimates it as 101,073 (this may be due to a different estimate).