British migration to France has resulted in France being home to one of the largest British-born populations outside the United Kingdom. Migration from the UK to France has increased rapidly from the 1990s onwards. Estimates of the number of British citizens living in France vary from 261,000 to 400,000. Besides Paris, many British expatriates tend to be concentrated in the regions of southern France, Brittany, and recently the island of Corsica. Dordogne has a large British immigrant community. The region has between 5,000 and 10,000 British residents and 800 British entrepreneurs, drawn by the French lifestyle, warm climate, and lower cost of living.

The Île-de-France is the most populous of the eighteen regions of France, with an official estimated population of 12,271,794 residents on 1 January 2023. Centred on the capital Paris, it is located in the north-central part of the country and often called the Paris Region. Île-de-France is densely populated and retains a prime economic position on the national stage, but it covers only 12,012 square kilometres, about 2% of metropolitan French territory. Its 2017 population was nearly one-fifth of the national total.