RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4405 locations in the last 30 days (4559 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

56,073 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/12/20261966 W FARRAGUT AVELincoln Square40Completed2 daysMobile DeviceCity 311
7/6/20267434 S CHAPPEL AVESouth Shore7Completed2 daysMobile DeviceCity 311
11/12/20254860 W EDDY STPortage Park31Completed2 daysMobile DeviceCity 311
5/12/202610907 S HEast Side10Completed2 daysMobile DeviceCity 311
6/14/20264110 W MAYPOLE AVEWest Garfield Park28Completed2 daysMobile DeviceCity 311
3/9/20267044 N ROCKWELL STWest Ridge50Completed2 daysMobile DeviceCity 311
11/22/20254640 S TALMAN AVEBrighton Park12Completed2 daysMobile DeviceCity 311
5/19/202610314 S GREEN STWashington Heights21Completed2 daysPhone CallCity 311
11/2/20253056 N RACINE AVELake View32Completed2 daysPhone CallCity 311
4/22/20263122 S PRINCETON AVEArmour Square11Completed2 daysAlderman's OfficeCity 311
2/18/20266500 S WINCHESTER AVEWest Englewood16Completed2 daysPhone CallCity 311
6/8/2026248 W 31ST STArmour Square11Completed2 daysInternetCity 311
3/11/20265313 S MENARD AVEGarfield Ridge23Completed2 daysMobile DeviceCity 311
4/12/20263041 W LYNDALE STLogan Square1Completed2 daysMobile DeviceCity 311
11/24/20254438 N RACINE AVEUptown46Completed2 daysInternetCity 311
1/10/20265317 S LONG AVEGarfield Ridge23Completed2 daysPhone CallCity 311
11/10/20254438 N MAGNOLIA AVEUptown46Completed2 daysMobile DeviceCity 311
5/3/20266347 W TOUHY AVEForest Glen45Completed2 daysInternetCity 311
3/10/20265315 W AGATITE AVEPortage Park45Completed2 daysInternetCity 311
4/18/20265401 S CORNELL AVEHyde Park5Completed2 daysInternetCity 311
6/7/20265519 S AUSTIN AVEGarfield Ridge13Completed2 daysPhone CallCity 311
6/2/20266147 N LENOX AVEForest Glen39Completed2 daysMobile DeviceCity 311
5/13/20262415 W BELLE PLAINE AVENorth Center47Completed2 daysMobile DeviceCity 311
3/10/20265249 N MELVINA AVEJefferson Park45Completed2 daysPhone CallCity 311
7/29/20263030 N OLCOTT AVEDunning29Completed2 daysInternetCity 311
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