Midwesterners have a reputation for being friendly, but according to a new membership survey conducted by extramarital affairs site AshleyMadison.com, residents of some Chicago neighborhoods may be getting a little too friendly with people who aren't their long-term partners.

Analysts studied the geographic data that accompanies the 210,000-plus memberships in the Chicago area, and rounded up the 10 neighborhoods in and around the city that generate the most cheaters. (Yes, that includes some suburbs, too.)

In addition to finding the cheating hotspots, Ashley Madison also rounded up some demographic data for the Chicag area, finding that suburban Arlington Heights has the highest percentage of female members, and Armour Square has the lowest.

Guard your husbands in Bucktown, ladies--the most single females seeking married men on the website live there.

To find out where else you should tighten the reigns while out on the town, check out the full list of the Chicagoland's 10 most infidelity-friendly areas:

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  • #10 Naperville

    Leaving Chicago doesn't mean you'll escape the cheaters. <br> <a href="http://www.Flickr.com" target="_hplink">Flickr</a>: <a href="http://www.flickr.com/photos/io_burn/" target="_hplink">Eli Hodapp</a>

  • #9 Oak Park

    Closer to the city = closer to temptation? <br> <a href="http://www.Flickr.com" target="_hplink">Flickr</a>: <a href="http://www.flickr.com/photos/dwhartwig/ " target="_hplink">dwhartwig</a>

  • #8 Arlington Heights

    Monogamists: the odds are stacked against you in Arlington Heights. <br> <a href="http://www.Flickr.com" target="_hplink">Flickr</a>: <a href="http://www.flickr.com/photos/monika_thorpe/" target="_hplink">Monika Thorpe</a>

  • #7 Beverly

    Residents of Beverly don't only misbehave when the green beer is flowing. <br> <a href="http://www.flickr.com/" target="flickr">Flickr:</a> <a href="http://www.flickr.com/people/pasa/" target="flickr"> pasa47</a>

  • #6 Hyde Park

    The First Couple's hometown neighbors aren't behaving very Presidentially. <br> <a href="http://www.flickr.com/" target="flickr">Flickr:</a> <a href="http://www.flickr.com/people/mcxurxo/" target="flickr"> mcxurxo</a>

  • #5 Armour Square

    Armour Square residents get around Chicago more than the White Sox during a Crosstown Classic. <br> <a href="http://www.flickr.com/" target="flickr">Flickr:</a> <a href="http://www.flickr.com/people/vxla/" target="flickr"> vxla</a>

  • #4 The Gold Coast

    We're betting "I live on the Gold Coast" is a pretty effective Ashley Madison pick-up line. <br> <a href="http://www.flickr.com/" target="flickr">Flickr:</a> <a href="http://www.flickr.com/people/joyosity/" target="flickr"> joyosity</a>

  • #3 Bucktown

    Buck tradition(al marriage). <br> <a href="http://www.flickr.com/" target="flickr">Flickr:</a> <a href="http://www.flickr.com/people/jlwelsh/" target="flickr"> jlwelsh</a>

  • #2 The Loop

    There's a lot of Magnificent on that Mile. <br> <a href="http://www.flickr.com/" target="flickr">Flickr:</a> <a href="http://www.flickr.com/people/jlwelsh/" target="flickr"> jlwelsh</a>

  • #1 Lincoln Park

    Not all animals mate for life. <br> <a href="http://www.flickr.com/" target="flickr">Flickr:</a> <a href="http://www.flickr.com/people/chascarper/" target="flickr"> chascarper</a>