Infidelity Statistics
Infidelity and adultery happen frequently in all places of the world. No group, regardless of sex, race, religion, level of income, location, etc. is unaffected by cheating and unfaithfulness. That is a fact. More specific facts and statistics regarding cheating lovers is difficult to come by, however, due to the inherent secrecy of this issue. Cheating is, by nature, a process of lies and deception, requires hiding behavior and evidence, and is not something most people are willing to reveal to anyone, even a researcher.

The problem with research findings and the statistics presented is that not everyone is honest with their answers and often times the population used in the statistic does not represent the population as a whole. More often than not a conservative person will not even answer such questionaires, and those that come forward honestly are not ashamed of their actions and have no problem telling all. Because of this problem, there ends up being two types of infidelity statistics: the low percents and the high percents. The low end statistics usually have a broader and more accurate polling of the population, but end up with less honesty in the results. The high end statistics tend to have a less accurate representation of the population, but more honesty in the results based on the type of people that come forward to answer the questions.
Therefore, the statistics presented below are not here to be seen as absolute fact, but rather to show a range of possibility on the true nature of how frequent cheating and issues related to infidelity occur. As wth all statistical evidence, it is up to the viewers to decide how the information relates to themselves.
- Men who admit to infidelity or adultery: 22 to 68%
- Women who admit to infidelty or adultery: 14 to 66%
- Marriages in which at least one partner commited adultery: 40 to 80%
- Marriages that end because of adultery: 17 to 65%
- Marriages that survive after adultery was exposed: 30 to 35%
- Men or women that admit to having an affair through work: up to 35%
- Men or women who would have an affair if they knew they would not get caught: up to 75%
- Average length of an affair: 1-2 years
- 25% of total search engine requests are porn related
- 8% of total emails are porn related
- 12% of all websites are porn related
- 13% of women and 20% of men admit to accessing porn at work
Again, these statistics are only here for basic informational purposes, and the ranges are broad because of the nature of infidelity and the innaccuray of research findings regarding this topic. Please see our list of sources and links for more detailed information, statistics and research findings.
Please see our list of Infidelity and Adultery Links and References for source information.

January 22nd, 2009 at 11:42 pm
“Marriages that end because of infidelity, 17 to 65%” that statement is statistically meaningless! whats with the 22 to 86%, and 20 to 40%,etc… “statistics” on this article???? Statistics are notorious for their ease of manipulation of data, but this is downright silly. I would love to see accurate data portrayed here, especially since the “average” reader here probably has not taken statistics and does not know the difference, and it could be much more helpful to those seeking accurate information.
April 16th, 2010 at 2:49 pm
Not bad article, but I really miss that you didn’t express your opinion, but ok you just have different approach
April 20th, 2010 at 5:29 pm
@kathy
I agree that the statistics are not accurate. In my research on the topic, I found that there was a large discrepancy in the percentages depending on which source you take into account. It is not an easy topic to obtain accurate information, and thus almost any research will be flawed. As mentioned in the article, these figures are not meant to be viewed as facts. Thanks for the comment.
January 2nd, 2011 at 7:47 am
Do you know that this great site is broken on IE7 and IE8? Footer is in the middle of the page.
August 9th, 2011 at 8:30 am
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