See the full article here:
http://www.thedp.com/article/2017/01/penn-regular-decision-update-2021
About half of the growth in applications can be attributed to a rise in the number of international candidates.
About 45% of the applicants are international students, 55% domestic.
Using round numbers, 55% of 40,000 applicants = 22,000 domestic applicants.
Approximately 88% of admits are domestic, 12% international.
Assuming 3,700 admits and 88% are domestic students = 3200 students.
So 3,200 / 22,000 = 14.5% admit rate for domestic applicants.
Still a low number, but higher than published admit numbers looking at the entire applicant pool.
@HYPSPlease I find it super hard to believe that 45% of the applicants are international students. This means that about 18,177 international students applied. Last year the international apps were 7,165 out of a total of 38,918 apps or 18%. The jump seems just too huge. also the article says that about half of the growth was attributed to the increase of international students. I would not be surprised if this was a typo by the DP. I think they meant to write that 45% of the increase came outside the US. The total growth was 1476 apps so about 664 was the growth of international apps for a total of about 7830 international apps.
@Penn95 I agree with you. I think that is a mistake in the article. I suspect a Journalism major misunderstood the person from the admissions office.
Yeah- @penn95 is indeed correct about that. Furda was talking about the increase in international applicants, not the total percentage of international apps.
However, just for the record, Penn doesn’t have a journalism major and the author of that article is a biological basis of behavior student…
Along those lines:
https://en.wikipedia.org/wiki/The_Daily_Pennsylvanian
And also for the record, I’ll add my vote to those saying that 45% was meant to refer to the increase in applicants that’s attributable to international applicants, and NOT the total number of applicants. 
@Penn95, you are indeed correct. DP has changed the article and added this:
“Correction: A previous version of this article said that 45 percent of applications for the class of 2021 came from outside the U.S., when in reality 45 percent of the increase in applications were from outside the U.S. The DP regrets the error.”
Somebody at the DP must read this forum. 
As an international student, even the percentage increase in applicants makes me shiver, as my chances and hopes get slimmer and slimmer every day. Two months left, though!
They do increase the quota for international students, which also means fewer slots for US students.
Penn is building new dorms, and is considering to increase the size of the class. it is already the 2nd largest Ivy.
More housing could increase future freshman class sizes, but Furda isn’t making promises
http://www.thedp.com/article/2017/01/penn-freshman-class-size-stable
I’m not so sure that Penn is considering any significant increase in the size of its class. If you’re basing that on the DP article that appeared a week ago (http://www.thedp.com/article/2017/01/penn-freshman-class-size-stable), my impression was that the DP was merely speculating about that possibility with the addition of student housing space on campus, and that Dean Furda was just answering that speculation in his comments to the DP. My guess is that Penn would rather bring more students back on campus for their housing after freshman year, than significantly expand the size of the student body. I think that’s why the New College House is now intended to be a 4-year college house, or something close to that. Of course, I could be wrong about that (wouldn’t be the first time).
I agree with the above. I don’t think Penn will be increasing their class size, at least not this year. I also think New College House (300 beds) is just going to help keep a few more upperclassmen on campus.
Do you think they would increase the size in the next few years?
^ My guess would be no, there will be no significant increase in class size in the foreseeable future. Penn’s had a class size of 2400-2500 for a few decades now, and there’s more to a school’s capacity than just on-campus living space. Penn increased its target class size from 2420 to 2445 within the past year or so, and I think that small adjustments like that will be the most we’ll see. But as I said before, I could always be wrong.
@Penn95 Your analysis sounds right and I hope you are correct.
Oh god, reading that article as an international applicant makes me feel sick…
Assuming that 12% of admits are international, admitted number of international students would be 444 and the admit rate for internationals would be 5.7%…
The admit rate of domestic applicants (14.5%) is 2.5 times higher than that of the international applicants.
It is more or less the same picture in the other top schools.
@dodosol the admit rate for domestic students is not 14.5%. Of the enrolled students in the class of 2020 13% are international. This means about 324 international students and 2167 domestic. Assume the yield rate of domestic and internationals was around the same as the overall, 68%. (I don’t see why it wouldn’t be around the same) 7,165 international students applied. So 31,753 domestic students applied.
So you have 2167/0.68 = 3187 domestic students accepted
Domestic acceptance rate = 3187/31753 = 10%
The international acceptance rate was 6.6%
This year both will be lower due to the higher number of both international and domestic apps and also because yield will probably be at least around the same, in my opinion probably even a bit higher.
Also when they announced the number of apps in January, the figure is almost always lower than the final figure announced in March by 200 or so apps. So penn probably got around 40,500+ apps.
Thank you for the correction. Apparently I used the data from the previous and uncorrected version of DP (“55% of applicants were domestic”).