RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4551 locations in the last 30 days (4720 reports) · Last sighting 15 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

1,215 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/16/202611601 S AVENUE LHegewisch10Completed7 daysAlderman's OfficeCity 311
9/16/20263401 N RIDGEWAY AVEAvondale30Open—Alderman's OfficeCity 311
9/16/20263901 W ADDISON STAvondale30Open—Phone CallCity 311
9/16/202611601 S EWING AVEHegewisch10Open—Alderman's OfficeCity 311
9/16/202611600 S EWING AVEHegewisch10Completed7 daysAlderman's OfficeCity 311
9/16/20266940 S BELL AVEChicago Lawn17Open—Mobile DeviceCity 311
9/16/202611501 S EWING AVEEast Side10Completed7 daysAlderman's OfficeCity 311
9/16/20264137 W 78TH PLAshburn18Open—Mobile DeviceCity 311
9/16/20262727 N MARMORA AVEBelmont Cragin30Open—InternetCity 311
9/16/202611500 S EWING AVEEast Side10Completed7 daysAlderman's OfficeCity 311
9/16/20264744 N MAPLEWOOD AVELincoln Square40Open—InternetCity 311
9/16/20265805 S RICHMOND STGage Park15Open—Alderman's OfficeCity 311
9/16/20263516 N ODELL AVEDunning38Completed5 daysPhone CallCity 311
9/16/20263033 W LOGAN BLVDLogan Square1Open—InternetCity 311
9/16/20265127 N NEVA AVENorwood Park41Open—InternetCity 311
9/16/20266504 S LOWE AVEEnglewood6Open—Phone CallCity 311
9/16/20262340 N KEELER AVEHermosa31Open—Phone CallCity 311
9/16/20263751 N DAMEN AVENorth Center47Open—InternetCity 311
9/16/20261233 S AVERS AVENorth Lawndale24Open—Phone CallCity 311
9/16/20264634 W DEMING PLBelmont Cragin31Completed7 daysInternetCity 311
9/16/20262216 N AVERS AVELogan Square35Completed5 daysMobile DeviceCity 311
9/16/20265412 N CAMPBELL AVELincoln Square40Open—InternetCity 311
9/16/20267844 S ABERDEEN STAuburn Gresham17Open—InternetCity 311
9/16/20264345 N MASON AVEPortage Park38Open—Alderman's OfficeCity 311
9/16/20264820 W FERDINAND STAustin37Open—Phone CallCity 311
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