23% based on my sample of 13 college friends. Three married their college sweethearts. Rest of us did not.

My best friend has been with her husband since our freshman year of undergrad and they are starting a family soon. I believe they are perfect for one another! We're in our mid 30s by the way.

My brother met his wife in college and they're happily married (so far).

Eh, some people just find the right person for them early on. If the relationship has survived the transition to college and the distance, it may just be that these two are meant to be together.

No clue on statistics, but I was just wondering this as well. My son (16) has had a fairly serious girlfriend for the last year or so, and he commented the other day that he wished he'd met her in college instead of high school. I asked why, and he told me that he just really thinks she's great (as well as very pretty). He said she's really nice to him and to his friends, is thoughtful and funny, and just really graceful with the way she handles everything and everyone in her life. He said it so wistfully, I was really touched. I told him that there was not actually a rule that they couldn't be together eventually, even though they'll likely go to college in different parts of the country.

About 10%

My DD started dating her husband in HS and through college when they were 1000 miles apart. She never dated anyone else. They have been married eight years with three kids.

Friends of mine from HS married. Husband has completely changed since HS and she has cheated on him. The only ones of my married friends who I know have cheated. BUT I am 40, so I am sure there are more to come.

Met my spouse sophomore year of college and we each did two years of grad school on opposite coasts after graduation. After that, we got married. Now we've been married for 12 years and he's the love of my life. I think that the time apart was completely necessary for us to learn to live as grown-ups on our own.

I met my husband in college at 19. Still happily together at 31. It can happen!

I met my DH when I was an 18-year-old college freshman and he was a senior. We're married with 3 kids 20 years later, although I'm not sure we would choose each other again. Adulthood has changed us both a lot - we're good friends but have virtually nothing in common.

Obviously most don't, but many do. I know lots of people married to their college SO (as I am), but only a handful married to their high school SO - and most of the latter group broke up for a while at some point in college or shortly thereafter and dated around a bit before getting back together.

They probably won't work out once they get into the real world and have jobs and bills.

We are not high school sweethearts but did two years long distance and married 20 years. Long distance can work if you are willing.

I'm shocked to learn my niece is still with the same boy from her high school she's been dating since she was 17! They're now seniors in college, their colleges are a few hours train ride apart (Boston and NYC). Another nephew on my husband's side has been dating a sorority girl at an SEC college a 3 hour drive from his SEC college! On instagram it looks like they're together a lot and really into each other.

Do these couples end up working out more often than not? I'd bet technology makes it a lot easier for long-distance relationships to work these days. Above facetime and chat apps, I bet Google maps, airline apps, uber and maybe even car rental apps like zipcar help a lot too.