[baseethrowaway]

Statistics.

Imagine 70% of all applicants being Indian nationals. Randomly sample all the applicants and with a big enough sample size, the distribution will be the same, i.e. ~70% of your samples will be Indian nationals.

Countries that have the most people in the world have the most people in the H-1B application process as well. China and India are my guesses, without looking at the publicly available data on H-1B applications. You don't see as many Chinese people speaking about it online because they, on average, don't speak English as well as people from India.

[analyst74]

I'm surprised to see a large gap between Indian and Chinese (6:1). Sampling SoMa rush hour traffic, I would expected something like 3:2 to or even 1:1 ratio.

[Gerrymander]

Sf and the bay area has a large Chinese population that has been here for a long time (from before the times of the Gold Rush). A good chunk of the people you see are probably Chinese americans, not H1b/Green card holders

[Gerrymander]

You also have to account for the fact that many indian IT shops are actively gaming the system. There's a lot of visa fraud wrt H-1B primarily from india.