RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4381 locations in the last 30 days (4542 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

53,243 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
2/26/20268518 W CATALPA AVEO'Hare41Completed1 dayInternetCity 311
12/23/20253300 S PULASKI RDSouth Lawndale22Completed1 dayInternetCity 311
3/3/20261319 S HARDING AVENorth Lawndale24Completed1 dayInternetCity 311
11/18/20251617 N MAPLEWOOD AVEWest Town1Completed1 dayAlderman's OfficeCity 311
12/2/20252512 W WALTON STWest Town36Completed1 dayAlderman's OfficeCity 311
2/17/20265319 S ELLIS AVEHyde Park5Completed1 dayInternetCity 311
2/25/20262648 W FITCH AVEWest Ridge50Completed1 dayPhone CallCity 311
2/11/20266750 S RACINE AVEWest Englewood17Completed1 dayInternetCity 311
4/14/20264824 S PRAIRIE AVEGrand Boulevard3Completed1 dayInternetCity 311
4/23/20266633 N NEWGARD AVERogers Park49Completed1 dayInternetCity 311
2/19/20261700 W CERMAK RDLower West Side25Completed1 dayMobile DeviceCity 311
4/9/20261248 N GREENVIEW AVEWest Town1Completed1 dayInternetCity 311
11/17/20253900 W 70TH PLWest Lawn23Completed1 dayPhone CallCity 311
5/3/20261204 E 73RD STGreater Grand Crossing5Completed1 dayInternetCity 311
5/7/2026755 W BROMPTON AVELake View46Completed1 dayMobile DeviceCity 311
4/8/20267034 N MANKATO AVEForest Glen45Completed1 dayMobile DeviceCity 311
12/15/20254746 N MALDEN STUptown46Completed1 dayMobile DeviceCity 311
3/22/20264031 S CAMPBELL AVEBrighton Park12Completed1 dayPhone CallCity 311
1/13/20261856 W WABANSIA AVEWest Town32Completed1 dayMobile DeviceCity 311
2/11/20262153 W WARNER AVENorth Center47Completed1 dayMobile DeviceCity 311
3/30/20264228 S MICHIGAN AVEGrand Boulevard3Completed1 dayPhone CallCity 311
1/7/20266823 W 64TH PLClearing13Completed1 dayInternetCity 311
1/7/20269622 S AVALON AVEPullman8Completed1 dayPhone CallCity 311
3/3/20261337 W HENDERSON STLake View44Completed1 dayPhone CallCity 311
1/6/20267041 W FARRAGUT AVENorwood Park41Completed1 dayMobile DeviceCity 311
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