RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4516 locations in the last 30 days (4684 reports) · Last sighting 20 hours ago

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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.

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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

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/14/20261008 W 31ST STBridgeport11Open—Mobile DeviceCity 311
9/13/20265142 S HOMAN AVEGage Park14Open—Phone CallCity 311
9/14/20266477 S NORMANDY AVEClearing13Open—InternetCity 311
9/14/20263720 N OSCEOLA AVEDunning38Open—InternetCity 311
9/14/20266235 W HENDERSON STDunning30Open—Alderman's OfficeCity 311
9/14/20263524 W DICKENS AVELogan Square35Open—Phone CallCity 311
9/14/20262532 W GUNNISON STLincoln Square40Open—InternetCity 311
9/17/20265252 N LUDLAM AVEJefferson Park45Open—InternetCity 311
9/15/20264438 S HONORE STNew City15Open—Alderman's OfficeCity 311
9/18/20268315 S TRIPP AVEAshburn18Open—Phone CallCity 311
9/15/20262738 S SPRINGFIELD AVESouth Lawndale22Open—Phone CallCity 311
9/16/20266934 S OAKLEY AVEChicago Lawn17Open—Phone CallCity 311
9/15/202651 E 98TH STRoseland9Open—Phone CallCity 311
9/14/20263018 W CHASE AVEWest Ridge50Open—Mobile DeviceCity 311
9/15/20261325 S KOMENSKY AVENorth Lawndale24Open—InternetCity 311
9/13/20263669 N ELSTON AVEIrving Park33Open—InternetCity 311
9/14/20269445 S LA SALLE STRoseland9Open—Phone CallCity 311
9/16/20264915 S HERMITAGE AVENew City20Open—InternetCity 311
9/14/20261867 N SHEFFIELD AVELincoln Park43Open—InternetCity 311
9/14/20266645 S RICHMOND STChicago Lawn15Open—InternetCity 311
9/14/2026533 E 89TH STChatham8Open—Mobile DeviceCity 311
9/14/20261655 N MOZART STWest Town26Open—Phone CallCity 311
9/14/20266040 N TROY STWest Ridge50Open—InternetCity 311
9/15/20266200 S HERMITAGE AVEWest Englewood15Open—Phone CallCity 311
9/20/202612322 S LAFAYETTE AVEWest Pullman9Open—InternetCity 311
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