The Most Popular Online Dating Sites

These aren't necessarily the best dating sites, although many of them do show up on both lists. No, these sites are the most popular, meaning more people visit these online dating sites on a monthly basis. Although this list can change every few months, the biggest of the bunch usually stay the same. So if you're looking for an online dating site that offers the most active members, in all parts of the world with biggest features and most active forums, these are your best places to start.
01
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Match.com

Male and female finger puppets online dating.
Getty Images / Hiroshi Watanabe

With an (estimated) 35 million unique monthly users, Match.com has the largest active membership of all the dating sites out there - and for good reason, however with some caveats: it's geared more towards folks looking for long term relationships, you'll want to carefully craft your profile to focus on such, and make sure you carefully review all emails for potential romance scams, as Match seems to attract more than their fair share of mysterious strangers trapped in Nigeria.

02
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Plenty of Fish

The largest of the free dating sites, POF boasts an (estimated) 23 million unique members using the site every month. While owner Markus Frind has wiped the site of folks only looking for casual dating or an age-gap relationship, I've found this has only increased the incidence of folks lying about their age or intentions. Still, it's a great site to get your feet wet in the online dating world, just to see what's out there and how the process works.

03
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Zoosk

Zoosk hosts an estimated 11.5 million unique users a month, and it's easy to see why: the sign-up is quick and easy, there's little to no profile writing needed, and the search features prominently display photos. Having said that, I've found a larger-than-average number of folks looking only for something casual here (likely due to the lack of time investment needed to join), and I've yet to hear of any successful relationships come out of the site (where readers tell me they've met The One, or something equally special, on the site).

04
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OkCupid

I freely admit that I'm biased when it comes to OkCupid, as it's taken my top spot on my Best Dating Site list for years now. I still love it, and highly recommend it to all singles and polyamorous couples looking for love, friendship, or even something a bit more casual. With just over 10 million unique monthly users, it's not the largest of the dating sites (although it is owned by Match.com), however I do believe it has the best offerings on this list with regards to cost (free, with options to pay for a few fun, yet non-crucial features), number of members, and usability.

05
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eHarmony

eHarmony
eHarmony. eHarmony, Inc.

With just over seven million unique monthly users, eHarmony is the largest dating site focused exclusively on heterosexual, long-term partnerships that (hopefully) lead to marriage. Their free hour-long test is fascinating to help you determine compatibility markers, however, there's zero way to tell if the person you're matched with also has an account, and therefore can reply to your questions. 

06
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Christian Mingle

Christian Mingle
Christian Mingle. Christian Mingle

Originally called Engage, Christian Mingle merged with the aforementioned site in 2009 after Spark Networks bought it out. With 5.5 million active users, it's the biggest niche and religious dating site in the world, with an even larger community base to support any Christian single's faith.

07
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Date Hookup Review

Date Hookup
Date Hookup. DateHookup.com Personals

The only 100% free dating site on this list, Date Hookup offers pretty much anyone a place to chat, meet, and hopefully connect with other singles. While I found the site cluttered and confusing to use, they're obviously doing something right with three million unique members visiting every month.

08
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OurTime

OurTime.com
OurTime. People Media

The only site specifically geared to the largest demographic group on the planet at this time (50+), and the second niche site on this list, OurTime has a lot to offer senior singles. With 1.7 million unique monthly members and the support of People Media (one of the largest online dating website conglomerates), and Match.com (also its parent company) OurTime a definite must-see if you're wanting to date or remarry in your 50s and beyond.