RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4630 locations in the last 30 days (4780 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

55,179 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/16/20264219 N KILPATRICK AVEPortage Park45Completed15 daysInternetCity 311
8/16/20263310 S CARPENTER STBridgeport11Completed2 daysMobile DeviceCity 311
8/16/20265401 S RICHMOND STGage Park14Completed10 daysMobile DeviceCity 311
8/16/2026852 W FULTON MARKETNear West Side27Completed15 daysInternetCity 311
8/16/20263735 N GREENVIEW AVELake View44Completed11 daysMobile DeviceCity 311
8/16/20263425 W MEDILL AVELogan Square35Completed16 daysMobile DeviceCity 311
8/16/202613152 S MACKINAW AVEHegewisch10Completed17 daysInternetCity 311
8/16/20265158 W SCHOOL STPortage Park31Completed10 daysInternetCity 311
8/16/20264419 S EMERALD AVENew City15Completed1 dayInternetCity 311
8/16/20264411 N ELSTON AVEAlbany Park39Completed10 daysPhone CallCity 311
8/16/20263943 N PITTSBURGH AVEDunning38Completed11 daysMobile DeviceCity 311
8/16/20264958 N KILPATRICK AVEAlbany Park39Completed10 daysPhone CallCity 311
8/16/20264562 N MILWAUKEE AVEPortage Park45Completed15 daysInternetCity 311
8/16/20266851 W 63RD PLClearing13Completed9 daysInternetCity 311
8/16/2026434 W BRIAR PLLake View44Completed15 daysInternetCity 311
8/16/20264644 N CENTRAL PARK AVEAlbany Park33Completed11 daysMobile DeviceCity 311
8/16/20263037 N KARLOV AVEAvondale31Completed10 daysInternetCity 311
8/16/20263409 N OSAGE AVEDunning38Completed15 daysMobile DeviceCity 311
8/15/20261878 N LARRABEE STLincoln Park43Completed12 daysPhone CallCity 311
8/15/20261900 N HOWE STLincoln Park43Completed12 daysPhone CallCity 311
8/15/20262816 W 36TH PLBrighton Park12Completed5 daysMobile DeviceCity 311
8/15/20265318 W WINNEMAC AVEJefferson Park45Completed15 daysMobile DeviceCity 311
8/15/20262804 W WALTON STWest Town26Completed10 daysInternetCity 311
8/15/20262811 W WALTON STWest Town36Completed11 daysInternetCity 311
8/15/20263709 W ALTGELD STLogan Square35Completed16 daysMobile DeviceCity 311
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