El Salvador is about 70 times smaller than Alaska.

Alaska is approximately 1,481,348 sq km, while El Salvador is approximately 21,041 sq km, making El Salvador 1.42% the size of Alaska. Meanwhile, the population of Alaska is ~710,231 people (5.9 million more people live in El Salvador).
Tip: This to-scale comparison of Alaska vs. El Salvador uses the Mercator projection, which distorts the size of regions near the poles.