Our Members


Some fun statistics about our families, matching and our website:


All numbers are approximate, as not everyone enters all information.

What is the average wait time from adding a posting, to matching (with half-siblings and/or donors) on the DSR?

The average wait is 189 days.  Minimum wait is 0 days, maximum is 5008 days.

71.2% of DSR posts yield matches.

80.1% of DSR users who have matched, matched instantly. The more users we have, the shorter the average wait time becomes!

What is the average age of all offspring currently listed in posts?

15.1 years old.

What is the average age of offspring when they are first posted?

13.1 years old.

What are the percentages for the number of children posted per family?

75% have one child posted, 21% have two children posted, 3.5% have three children posted, .5% have four children posted and around .1% have more than four children posted.

Which proportions of DSR posts are for sperm, egg, and embryo donations?

90.8% of DSR posts are families that used sperm donation, 8.5% of families used egg donation and .7% of families used embryo donation.

How much traffic does the DSR receive?

We average more than 15,000 unique visitors and 1.7 million hits per month on the Donor Sibling Registry website.

What is the typical age of donor offspring who post on the DSR?

  • April 2019:
  • 10 and under: 4,244
  • 11-19: 6,944
  • 20-29: 3,797
  • 30-39: 1,096
  • 40-49: 350
  • 50-59: 103
  • 60-69: 61
  • 70-79: 9

NOTE: these numbers include 16,611 DSR members but do not include the thousands of DSR members who have not posted or who do not include ages in their postings.


A little background on DSR parents and donors.


While we have never asked DSR members about their family type, religion, marital status, age, education, etc., on the website, we have included some of these questions in several research surveys over the years. We've compiled some of those numbers to help present an idea of who we are.