Teach for America, the program that recruits top college graduates to teach for two years in public schools that are difficult to staff, has experienced a year of prodigious growth and will place 3,700 new teachers this fall, up from 2,900 last year, a 28 percent increase.

That growth was outpaced, however, by a surge in applications from college seniors. About 24,700 applied this spring to be teachers, up from 18,000 last year, a 37 percent increase, according to figures released by the organization on Wednesday.

The nonprofit program sent its first 500 recruits into American public school classrooms in 1990. It has a large recruiting staff that visits campuses, contacting top prospects and recruiting aggressively. Founded by a Princeton graduate, it has always carefully sifted through applicants’ grade-point averages and other data in recruiting. But with the numbers of applicants increasing faster than the number of teachers placed, it was even more selective this year than before, the organization said.

About 11 percent of the graduating class at Yale applied, 10 percent at Georgetown and 9 percent at Harvard, said Amy Rabinowitz, a spokeswoman.