RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4560 locations in the last 30 days (4710 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.

32080fewer → more

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

54,551 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/21/2026162 W 74TH STGreater Grand Crossing6Completed10 daysPhone CallCity 311
8/21/20266559 N CALIFORNIA AVEWest Ridge50Completed7 daysPhone CallCity 311
8/21/20261265 N MILWAUKEE AVEWest Town1Completed11 daysInternetCity 311
8/21/20265341 W SCHOOL STPortage Park31Completed12 daysPhone CallCity 311
8/21/20261764 W ESTES AVERogers Park49Completed11 daysPhone CallCity 311
8/21/20266130 W NELSON STBelmont Cragin30Completed12 daysPhone CallCity 311
8/21/2026621 W BELDEN AVELincoln Park43Completed13 daysInternetCity 311
8/21/20266235 N KARLOV AVEForest Glen39Completed12 daysMobile DeviceCity 311
8/21/20266218 W RASCHER AVEJefferson Park45Completed12 daysPhone CallCity 311
8/21/20266110 N CHRISTIANA AVENorth Park50Completed7 daysMobile DeviceCity 311
8/21/20264417 N GREENVIEW AVEUptown47Completed13 daysMobile DeviceCity 311
8/21/2026440 W 44TH STNew City15Completed13 daysPhone CallCity 311
8/21/202611344 S EGGLESTON AVERoseland21Completed12 daysPhone CallCity 311
8/21/20262422 N ORCHARD STLincoln Park43Completed11 daysInternetCity 311
8/21/20262932 N HAMLIN AVEAvondale31Completed12 daysAlderman's OfficeCity 311
8/21/20261514 W BYRON STLake View46Completed13 daysMobile DeviceCity 311
8/21/20264953 W WINONA STForest Glen45Completed7 daysInternetCity 311
8/21/20261962 W DIVERSEY AVENorth Center32Completed13 daysPhone CallCity 311
8/21/20265447 W LAWRENCE AVEPortage Park45Completed12 daysInternetCity 311
8/21/20263039 N HONORE STNorth Center32Completed13 daysPhone CallCity 311
8/21/20266224 W MONTROSE AVEPortage Park38Completed12 daysMobile DeviceCity 311
8/21/20265644 W NEWPORT AVEPortage Park30Completed12 daysMobile DeviceCity 311
8/21/20262422 S MILLARD AVESouth Lawndale22Completed14 daysPhone CallCity 311
8/21/20262422 S MILLARD AVESouth Lawndale22Completed13 daysPhone CallCity 311
8/21/20265424 W BERTEAU AVEPortage Park38Completed11 daysPhone CallCity 311
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