RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4635 locations in the last 30 days (4790 reports) · Last sighting 20 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

55,690 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/15/20255834 S KENTON AVEWest Elsdon13Completed9 daysAlderman's OfficeCity 311
9/15/20251400 N DEARBORN STNear North Side2Completed4 daysAlderman's OfficeCity 311
9/15/20255632 W GUNNISON STJefferson Park45Completed10 daysAlderman's OfficeCity 311
9/15/20256534 S KILDARE AVEWest Lawn13Completed9 daysPhone CallCity 311
9/15/20255940 N ARTESIAN AVEWest Ridge40Completed8 daysInternetCity 311
9/15/20256015 S SACRAMENTO AVEChicago Lawn15Completed9 daysInternetCity 311
9/15/20251534 N HARDING AVEHumboldt Park26Completed11 daysAlderman's OfficeCity 311
9/15/20251240 W RACE AVEWest Town1Completed10 daysPhone CallCity 311
9/15/20253615 S WASHTENAW AVEBrighton Park12Completed14 daysAlderman's OfficeCity 311
9/15/20253945 W 69TH PLWest Lawn23Completed7 daysAlderman's OfficeCity 311
9/15/20255129 S MOBILE AVEGarfield Ridge23Completed7 daysAlderman's OfficeCity 311
9/15/20252345 W 81ST PLAshburn18Completed9 daysMobile DeviceCity 311
9/15/20254933 N CALIFORNIA AVELincoln Square40Completed8 daysInternetCity 311
9/15/20251553 N KOSTNER AVEHumboldt Park36Completed8 daysPhone CallCity 311
9/15/20251950 W FARGO AVERogers Park49Completed9 daysAlderman's OfficeCity 311
9/15/20256114 N TALMAN AVEWest Ridge40Completed8 daysPhone CallCity 311
9/15/20252701 W CARMEN AVELincoln Square40Completed8 daysPhone CallCity 311
9/15/20257404 S INGLESIDE AVEGreater Grand Crossing6Completed9 daysInternetCity 311
9/15/20252101 N LARAMIE AVEBelmont Cragin26Completed11 daysInternetCity 311
9/15/20252470 N CLARK STLincoln Park43Completed9 daysAlderman's OfficeCity 311
9/15/20252470 N CLARK STLincoln Park43Completed9 daysAlderman's OfficeCity 311
9/15/20251636 W ROSCOE STLake View47Completed10 daysAlderman's OfficeCity 311
9/15/20251130 W DIVERSEY PKWYLake View44Completed8 daysInternetCity 311
9/15/20252730 N KENMORE AVELincoln Park43Completed9 daysInternetCity 311
9/15/2025870 N RICHMOND STWest Town26Completed11 daysAlderman's OfficeCity 311
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