District of Columbia is about 1.9 times bigger than Anguilla.

Anguilla is approximately 91 sq km, while District of Columbia is approximately 177 sq km, making District of Columbia 95% larger than Anguilla. Meanwhile, the population of Anguilla is ~18,741 people (582,982 more people live in District of Columbia).
Tip: This to-scale comparison of Anguilla vs. District of Columbia uses the Mercator projection, which distorts the size of regions near the poles.