RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4336 locations in the last 30 days (4492 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.

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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

56,145 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/26/20263440 W MONTROSE AVEAlbany Park33Completed2 daysMobile DeviceCity 311
6/24/20262651 S SPRINGFIELD AVESouth Lawndale22Completed2 daysMobile DeviceCity 311
5/11/20264424 S COTTAGE GROVE AVEGrand Boulevard4Completed2 daysInternetCity 311
11/19/20253638 W MARQUETTE RDWest Lawn23Completed2 daysInternetCity 311
1/28/20267011 W 64TH STClearing13Completed2 daysMobile DeviceCity 311
11/22/20251216 W LEXINGTON STNear West Side34Completed2 daysPhone CallCity 311
4/13/20261735 W ELLEN STWest Town1Completed2 daysInternetCity 311
3/31/20263805 W 86TH PLAshburn18Completed2 daysPhone CallCity 311
12/6/20257349 W HOWARD STEdison Park41Completed2 daysMobile DeviceCity 311
3/21/20263644 W 62ND STWest Lawn23Completed2 daysMobile DeviceCity 311
11/19/20257356 S VERNON AVEGreater Grand Crossing6Completed2 daysPhone CallCity 311
2/21/20261741 W ELLEN STWest Town1Completed2 daysMobile DeviceCity 311
6/15/20264331 N HONORE STNorth Center47Completed2 daysMobile DeviceCity 311
4/7/20264500 S KOMENSKY AVEArcher Heights14Completed2 daysPhone CallCity 311
2/21/20261742 W POTOMAC AVEWest Town1Completed2 daysMobile DeviceCity 311
3/25/20263600 N LUNA AVEPortage Park30Completed2 daysAlderman's OfficeCity 311
5/4/20268116 S WOOD STAuburn Gresham17Completed2 daysInternetCity 311
6/13/20263400 W FOSTER AVENorth Park39Completed2 daysPhone CallCity 311
3/21/20266247 N KILDARE AVEForest Glen39Completed2 daysInternetCity 311
1/24/20264834 S DAMEN AVENew City15Completed2 daysMobile DeviceCity 311
5/27/2026907 N HERMITAGE AVEWest Town1Completed2 daysMobile DeviceCity 311
12/27/20253800 S LOWE AVEBridgeport11Completed2 daysInternetCity 311
11/15/20254306 W WRIGHTWOOD AVEHermosa31Completed2 daysMobile DeviceCity 311
6/8/20261113 W 18TH PLLower West Side25Completed2 daysMobile DeviceCity 311
12/1/20253013 N KILBOURN AVEHermosa31Completed2 daysPhone CallCity 311
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