RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4337 locations in the last 30 days (4493 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

56,145 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/25/20252525 N ST LOUIS AVELogan Square35Completed8 daysInternetCity 311
9/25/2025110 E JACKSON DRLoop42Completed4 daysInternetCity 311
9/25/20251856 S AVERS AVENorth Lawndale24Completed4 daysPhone CallCity 311
9/25/20253526 W DICKENSLogan Square35Completed8 daysSalesforce Mobile AppCity 311
9/25/202511541 S EGGLESTON AVEWest Pullman21Completed5 daysPhone CallCity 311
9/25/202510909 S AVENUE EEast Side10Completed6 daysPhone CallCity 311
9/25/20254702 N KELSO AVEAlbany Park39Completed6 daysInternetCity 311
9/25/20252437 W AINSLIE STLincoln Square40Completed1 dayPhone CallCity 311
9/25/20252538 W AINSLIE STLincoln Square40Completed1 dayPhone CallCity 311
9/25/20251711 W 59TH STWest Englewood15Completed11 daysPhone CallCity 311
9/25/20254705 W BYRON STPortage Park45Completed8 daysAlderman's OfficeCity 311
9/25/20251518 N TRIPP AVEHumboldt Park36Completed8 daysPhone CallCity 311
9/25/20251517 W DIVERSEY AVELincoln Park32Completed8 daysPhone CallCity 311
9/25/20252753 N BOSWORTH AVELincoln Park32Completed11 daysPhone CallCity 311
9/25/20253054 N ALLEN AVEAvondale35Completed11 daysAlderman's OfficeCity 311
9/25/20256354 W CUYLER AVEPortage Park38Completed11 daysPhone CallCity 311
9/25/20256354 W CUYLER AVEPortage Park38Completed11 daysPhone CallCity 311
9/25/20253500 N OLEANDER AVEDunning38Completed11 daysInternetCity 311
9/25/20255377 N PAULINA STEdgewater40Completed7 daysPhone CallCity 311
9/25/20256832 W 64TH STClearing13Completed11 daysAlderman's OfficeCity 311
9/25/20256732 W 64TH PLClearing13Completed7 daysAlderman's OfficeCity 311
9/25/20256046 S NORMANDY AVEClearing13Completed12 daysAlderman's OfficeCity 311
9/25/20256215 N DRAKE AVENorth Park50Completed8 daysPhone CallCity 311
9/25/20255634 S NASHVILLE AVEGarfield Ridge13Completed12 daysAlderman's OfficeCity 311
9/25/20255516 S NASHVILLE AVEGarfield Ridge13Completed5 daysAlderman's OfficeCity 311
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