RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4494 locations in the last 30 days (4656 reports) · Last sighting 19 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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/11/20253800 W 60TH STWest Lawn23Completed16 daysAlderman's OfficeCity 311
9/1/20264538 N AVERS AVEAlbany Park33Completed16 daysPhone CallCity 311
8/30/20262049 W DICKENS AVELogan Square32Completed16 daysMobile DeviceCity 311
7/26/20263519 N ODELL AVEDunning38Completed16 daysInternetCity 311
8/10/20261352 W WINONA STUptown47Completed16 daysMobile DeviceCity 311
8/18/20263846 N ALTA VISTA TERLake View46Completed16 daysInternetCity 311
8/2/20264536 N MULLIGAN AVEPortage Park38Completed16 daysMobile DeviceCity 311
8/19/20251349 W CORNELIA AVELake View44Completed16 daysInternetCity 311
8/5/20262724 N RIDGEWAY AVELogan Square35Completed16 daysAlderman's OfficeCity 311
8/26/20262734 W GREENLEAF AVEWest Ridge50Completed16 daysPhone CallCity 311
8/18/20255257 W SUNNYSIDE AVEPortage Park45Completed16 daysPhone CallCity 311
8/24/20261509 W SHERWIN AVERogers Park49Completed16 daysInternetCity 311
8/10/20266126 W DAKIN STDunning38Completed16 daysPhone CallCity 311
8/17/20251231 W NEWPORT AVELake View44Completed16 daysMobile DeviceCity 311
8/10/20261356 S MICHIGAN AVENear South Side3Completed16 daysInternetCity 311
8/25/20264150 N KOSTNER AVEIrving Park45Completed16 daysInternetCity 311
8/10/20263739 N NEWLAND AVEDunning38Completed16 daysAlderman's OfficeCity 311
8/17/202610401 S TORRENCE AVESouth Deering10Completed16 daysInternetCity 311
7/26/20268210 W BELMONT AVEDunning38Completed16 daysPhone CallCity 311
8/2/20256417 N SAYRE AVENorwood Park41Completed16 daysMobile DeviceCity 311
8/17/20251117 W LILL AVELincoln Park43Completed16 daysMobile DeviceCity 311
8/24/20267513 N WINCHESTER AVERogers Park49Completed16 daysInternetCity 311
8/29/20262908 W FLETCHER STAvondale35Completed16 daysInternetCity 311
8/4/20253341 N PIONEER AVEDunning38Completed16 daysAlderman's OfficeCity 311
8/29/20262045 N DAMEN AVELogan Square32Completed16 daysMobile DeviceCity 311
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