RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4695 locations in the last 30 days (4848 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

1,107 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/28/20262125 W EASTWOOD AVELincoln Square47Open—Phone CallCity 311
9/28/20262301 N PULASKI RDLogan Square35Open—InternetCity 311
9/28/20263259 W 66TH STChicago Lawn14Open—InternetCity 311
9/28/20263052 W PALMER STLogan Square1Open—Mobile DeviceCity 311
9/28/20263527 S UNION AVEBridgeport11Open—Phone CallCity 311
9/28/20267719 S MARSHFIELD AVEAuburn Gresham17Open—Phone CallCity 311
9/28/20267333 N OCONTO AVEEdison Park41Open—Phone CallCity 311
9/28/20261457 N CALIFORNIA AVEWest Town26Open—InternetCity 311
9/28/20264931 W ADAMS STAustin28Open—Alderman's OfficeCity 311
9/28/20263514 W ADAMS STEast Garfield Park28Open—Phone CallCity 311
9/28/20265806 S MARSHFIELD AVEWest Englewood16Open—Phone CallCity 311
9/28/20263217 S RACINE AVEBridgeport11Open—Alderman's OfficeCity 311
9/28/20263920 N CALIFORNIA AVEIrving Park35Open—InternetCity 311
9/28/20262949 N AVERS AVEAvondale31Open—Phone CallCity 311
9/28/20265325 W WAVELAND AVEPortage Park30Open—InternetCity 311
9/28/20265322 W VAN BUREN STAustin29Open—InternetCity 311
9/28/20262555 N CLARK STLincoln Park43Open—Phone CallCity 311
9/28/20262113 S CENTRAL PARK AVENorth Lawndale24Open—Mobile DeviceCity 311
9/28/20265137 W FOSTER AVEJefferson Park45Open—Phone CallCity 311
9/28/20262215 W EASTWOOD AVELincoln Square47Open—Phone CallCity 311
9/28/20269842 S CLAREMONT AVEBeverly19Completed8 daysPhone CallCity 311
9/28/20266215 W 64TH STClearing13Open—InternetCity 311
9/28/202612301 S UNION AVEWest Pullman9Completed3 daysPhone CallCity 311
9/28/20266137 N MAPLEWOOD AVEWest Ridge40Open—InternetCity 311
9/28/20265914 S CAMPBELL AVEChicago Lawn16Open—Alderman's OfficeCity 311
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