District of Columbia is about 1.2 times bigger than British Virgin Islands.

British Virgin Islands is approximately 151 sq km, while District of Columbia is approximately 177 sq km, making District of Columbia 17% larger than British Virgin Islands. Meanwhile, the population of British Virgin Islands is ~38,632 people (563,091 more people live in District of Columbia).
Tip: This to-scale comparison of British Virgin Islands vs. District of Columbia uses the Mercator projection, which distorts the size of regions near the poles.