RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4643 locations in the last 30 days (4798 reports) · Last sighting yesterday

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

32080fewer → more

Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

54,983 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/20/20261828 N WILMOT AVELogan Square32Completed1 dayPhone CallCity 311
8/20/20262727 N TROY STLogan Square35Completed1 dayPhone CallCity 311
8/20/20261906 W BERWYN AVELincoln Square40Completed1 dayPhone CallCity 311
8/20/20261815 N KARLOV AVEHermosa26Completed13 daysPhone CallCity 311
8/20/20264419 N BERNARD STAlbany Park33Completed13 daysAlderman's OfficeCity 311
8/20/20267319 S OAKLEY AVEChicago Lawn18Completed8 daysPhone CallCity 311
8/20/20267319 S OAKLEY AVEChicago Lawn18Completed8 daysPhone CallCity 311
8/20/20264855 N WASHTENAW AVELincoln Square40Completed13 daysInternetCity 311
8/20/202611127 S PARNELL AVERoseland21Completed13 daysInternetCity 311
8/20/202611342 S ST LOUIS AVEMount Greenwood19Completed7 daysInternetCity 311
8/20/20266807 N SHERIDAN RDRogers Park49Completed11 daysPhone CallCity 311
8/20/20262128 W MONTROSE AVELincoln Square47Completed14 daysPhone CallCity 311
8/20/20263611 W 59TH PLWest Lawn23Completed12 daysPhone CallCity 311
8/20/20261911 N KARLOV AVEHermosa26Completed13 daysMobile DeviceCity 311
8/20/20266241 W 55TH STGarfield Ridge13Completed8 daysInternetCity 311
8/20/20268416 S ST LAWRENCE AVEChatham6Completed11 daysMobile DeviceCity 311
8/20/20265706 S EMERALD AVEEnglewood16Completed12 daysPhone CallCity 311
8/20/20264245 S DR MARTIN LUTHER KING JR DRGrand Boulevard3Completed7 daysPhone CallCity 311
8/20/20265715 S HAMILTON AVEWest Englewood15Completed1 dayAlderman's OfficeCity 311
8/20/20261013 S OAKLEY BLVDNear West Side28Completed8 daysPhone CallCity 311
8/20/20264447 N WOLCOTT AVELincoln Square47Completed13 daysMobile DeviceCity 311
8/20/20263030 W LEXINGTON STEast Garfield Park28Completed8 daysPhone CallCity 311
8/20/20267465 N SEELEY AVERogers Park49Completed12 daysInternetCity 311
8/20/20263719 N NOTTINGHAM AVEDunning38Completed13 daysMobile DeviceCity 311
8/20/20263034 W LEXINGTON STEast Garfield Park28Completed8 daysPhone CallCity 311
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