RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4479 locations in the last 30 days (4644 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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/11/202610411 S COTTAGE GROVE AVEPullman9Completed3 daysInternetCity 311
6/17/202610411 S HOMAN AVEMount Greenwood19Completed5 daysAlderman's OfficeCity 311
9/24/202610411 S RHODES AVERoseland9Open—Phone CallCity 311
8/11/202510412 S CAMPBELL AVEBeverly19Canceled2 daysInternetCity 311
7/22/202610412 S SAWYER AVEMount Greenwood19Completed6 daysInternetCity 311
4/23/202610413 S PRAIRIE AVERoseland9Completed1 dayInternetCity 311
4/25/202610413 S PRAIRIE AVERoseland9Completed3 daysInternetCity 311
6/5/202610415 S CENTRAL PARK AVEMount Greenwood19Completed3 daysAlderman's OfficeCity 311
9/14/202610415 S COTTAGE GROVE AVEPullman9Open—InternetCity 311
9/22/202510416 S DRAKE AVEMount Greenwood19Completed3 daysAlderman's OfficeCity 311
8/4/202510416 S LAWNDALE AVEMount Greenwood19Completed10 daysPhone CallCity 311
7/8/202610417 S DRAKE AVEMount Greenwood19Completed2 daysInternetCity 311
2/19/202610417 S EMERALD AVERoseland21Completed1 dayInternetCity 311
5/28/202610417 S GREEN BAY AVEEast Side10Completed1 dayPhone CallCity 311
6/2/202610417 S TORRENCE AVESouth Deering10Completed2 daysInternetCity 311
6/16/202610417 S TORRENCE AVESouth Deering10Completed2 daysInternetCity 311
8/18/202610418 S GEast Side10Completed15 daysMobile DeviceCity 311
9/9/202510418 S WABASH AVERoseland9Completed8 daysPhone CallCity 311
5/14/20261041 N CAMPBELL AVEWest Town36Completed5 daysMobile DeviceCity 311
3/8/20261041 N CAMPBELL AVEWest Town36Completed3 daysMobile DeviceCity 311
11/20/20251041 N WINCHESTER AVEWest Town1Completed1 dayPhone CallCity 311
9/10/20251041 W 93RD STWashington Heights21Completed12 daysPhone CallCity 311
11/21/20251041 W ALBION AVERogers Park49Completed5 daysMobile DeviceCity 311
9/22/20251041 W BELDEN AVELincoln Park43Completed9 daysInternetCity 311
9/14/20261041 W MONTANA STLincoln Park43Completed7 daysInternetCity 311
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