London is a city in Pope County, Arkansas, United States.

As of the 2020 United States census, there were 936 people, 307 households, and 185 families residing in the city.

As of the census[6] of 2000, there were 925 people, 359 households, and 268 families residing in the city.

There were 413 housing units at an average density of 172.1 per square mile (66.4/km2).

20.6% of all households were made up of individuals, and 8.9% had someone living alone who was 65 years of age or older.