RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4693 locations in the last 30 days (4846 reports) · Last sighting 2 days 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

1,107 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/28/20266120 W ARDMORE AVENorwood Park45Open—Mobile DeviceCity 311
9/28/20262751 N SEMINARY AVELincoln Park43Completed1 dayPhone CallCity 311
9/28/20262912 W WILSON AVEAlbany Park40Open—InternetCity 311
9/28/202611033 S RIDGEWAY AVEMount Greenwood19Completed1 dayPhone CallCity 311
9/28/20265251 S MARSHFIELD AVENew City16Open—Phone CallCity 311
9/28/20265251 S MARSHFIELD AVENew City16Open—Phone CallCity 311
9/28/20263047 S PULASKI RDSouth Lawndale22Open—Phone CallCity 311
9/28/20267454 N CLAREMONTWest Ridge50Completed4 daysSalesforce Mobile AppCity 311
9/28/20263926 W 102ND STMount Greenwood19Completed1 dayPhone CallCity 311
9/28/20264058 N SHERIDAN RDUptown46Open—InternetCity 311
9/28/2026814 S OAKLEY BLVDNear West Side28Completed1 dayPhone CallCity 311
9/28/20265831 N WINTHROP AVEEdgewater48Completed1 dayPhone CallCity 311
9/28/20262702 N KILBOURN AVEHermosa31Open—Mobile DeviceCity 311
9/28/20263240 N DRAKE AVEAvondale35Completed8 daysInternetCity 311
9/28/20263317 S HOYNE AVEMcKinley Park12Open—Phone CallCity 311
9/28/20265228 S RICHMOND STGage Park14Open—Alderman's OfficeCity 311
9/28/2026322 W 106TH STRoseland21Open—Phone CallCity 311
9/28/20264445 N PAULINA STUptown47Open—Phone CallCity 311
9/28/20266622 S CAMPBELL AVEChicago Lawn16Open—InternetCity 311
9/28/20265962 W NORTH AVEAustin29Open—Phone CallCity 311
9/28/20267149 S WINCHESTER AVEWest Englewood17Open—Alderman's OfficeCity 311
9/28/20261749 W 21ST STLower West Side25Open—Phone CallCity 311
9/28/2026823 W ALDINE AVELake View44Open—Phone CallCity 311
9/28/20261131 N LAWLER AVEAustin37Open—Alderman's OfficeCity 311
9/28/20262701 W FARGO AVEWest Ridge50Completed4 daysAlderman's OfficeCity 311
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