RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4415 locations in the last 30 days (4573 reports) · Last sighting 17 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

53,341 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/16/202611500 S EWING AVEEast Side10Completed7 daysAlderman's OfficeCity 311
9/16/202611501 S AVENUE LEast Side10Open—Alderman's OfficeCity 311
9/16/202611501 S EWING AVEEast Side10Completed7 daysAlderman's OfficeCity 311
7/24/202511506 S AVENUE HEast Side10Completed11 daysAlderman's OfficeCity 311
2/7/20261150 W 110TH PLMorgan Park21Completed2 daysPhone CallCity 311
4/9/20261150 W 110TH PLMorgan Park21Completed0 daysPhone CallCity 311
4/4/20261150 W 110TH PLMorgan Park21Completed2 daysPhone CallCity 311
8/6/20261150 W 65TH STEnglewood16Completed12 daysMobile DeviceCity 311
11/23/20251150 W OHIO STWest Town27Completed1 dayMobile DeviceCity 311
3/31/20261150 W OHIO STWest Town27Completed1 dayMobile DeviceCity 311
7/30/20251150 W OHIO STWest Town27Completed11 daysMobile DeviceCity 311
7/30/20261150 W OHIO STWest Town27Completed13 daysMobile DeviceCity 311
9/16/202511511 S GEast Side10Completed3 daysInternetCity 311
12/3/202511514 S PRINCETON AVEWest Pullman21Completed0 daysPhone CallCity 311
2/28/20261151 W 18TH STLower West Side25Completed3 daysInternetCity 311
6/12/20261151 W 18TH STLower West Side25Completed3 daysInternetCity 311
8/30/20261151 W ERIE STWest Town27Completed1 dayPhone CallCity 311
10/8/202511521 S EGGLESTON AVEWest Pullman21Completed2 daysAlderman's OfficeCity 311
9/21/202511521 S LOWE AVEWest Pullman21Completed9 daysInternetCity 311
10/23/202511524 S OAKLEY AVEMorgan Park19Completed4 daysPhone CallCity 311
1/8/202611525 S UNION AVEWest Pullman21Completed1 dayPhone CallCity 311
7/28/202611525 S UNION AVEWest Pullman21Completed8 daysInternetCity 311
1/3/202611526 S LONGWOOD DRMorgan Park19Completed2 daysInternetCity 311
7/29/20251152 N HARDING AVEHumboldt Park37Completed10 daysMobile DeviceCity 311
4/14/20261152 W 17TH STLower West Side25Completed2 daysPhone CallCity 311
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