RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4571 locations in the last 30 days (4718 reports) · Last sighting 19 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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/22/202517 W 36TH STDouglas3Completed8 daysInternetCity 311
6/23/20261800 E 78TH STSouth Shore8Completed1 dayInternetCity 311
5/5/20261800 E 78TH STSouth Shore8Completed3 daysInternetCity 311
7/21/20251800 N CALIFORNIA AVEWest Town26Completed14 daysAlderman's OfficeCity 311
7/28/20251800 N CLARK STLincoln Park43Completed7 daysInternetCity 311
10/20/20251800 N CLEVELAND AVELincoln Park43Completed8 daysAlderman's OfficeCity 311
9/10/20251800 N DAMEN AVEWest Town32Completed12 daysInternetCity 311
3/26/20261800 N HALSTED STLincoln Park43Completed1 dayPhone CallCity 311
3/31/20261800 N HALSTED STLincoln Park43Completed1 dayPhone CallCity 311
10/4/20261800 N HUDSON AVELincoln Park43Open—Phone CallCity 311
3/26/20261800 N KOSTNER AVEHermosa26Completed1 dayPhone CallCity 311
10/29/20251800 N MAYFIELD AVEAustin29Completed6 daysMobile DeviceCity 311
4/12/20261800 N RICHMOND STLogan Square26Completed1 dayMobile DeviceCity 311
7/10/20261800 N SAWYER AVELogan Square26Completed10 daysPhone CallCity 311
6/26/20261800 N WASHTENAW AVELogan Square1Completed10 daysMobile DeviceCity 311
10/15/20251800 N WILMOT AVELogan Square32Completed6 daysPhone CallCity 311
6/21/20261800 N WOLCOTT AVELogan Square32Completed3 daysMobile DeviceCity 311
7/8/20261800 S CARPENTER STLower West Side25Completed5 daysMobile DeviceCity 311
9/30/20261800 S CENTRAL PARK AVENorth Lawndale24Open—Alderman's OfficeCity 311
8/24/20261800 S DRAKE AVENorth Lawndale24Completed3 daysAlderman's OfficeCity 311
9/15/20261800 S FAIRFIELD AVENorth Lawndale25Completed14 daysPhone CallCity 311
7/28/20251800 S KOMENSKY AVENorth Lawndale24Completed8 daysAlderman's OfficeCity 311
9/14/20261800 S LAWNDALE AVENorth Lawndale24Completed9 daysPhone CallCity 311
11/2/20251800 S SPRINGFIELD AVENorth Lawndale24Completed3 daysPhone CallCity 311
2/9/20261800 S SPRINGFIELD AVENorth Lawndale24Completed1 dayAlderman's OfficeCity 311
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