RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4531 locations in the last 30 days (4686 reports) · Last sighting 22 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.

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

53,552 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/1/20267343 W BELMONT AVEDunning29Completed3 daysInternetCity 311
9/1/20261350 W WINONAUptown47Completed15 daysSalesforce Mobile AppCity 311
9/1/20262145 W EASTWOODLincoln Square47Completed15 daysSalesforce Mobile AppCity 311
9/1/2026624 E 95TH STRoseland8Completed14 daysAlderman's OfficeCity 311
9/1/20265820 N VIRGINIA AVEWest Ridge50Completed10 daysPhone CallCity 311
9/1/20262828 N OAK PARK AVEMontclare36Completed9 daysInternetCity 311
9/1/20261518 W CHASE AVERogers Park49Completed13 daysPhone CallCity 311
9/1/20264326 N KEDVALE AVEIrving Park39Completed14 daysPhone CallCity 311
9/1/20262801 S KOSTNER AVESouth Lawndale22Completed15 daysMobile DeviceCity 311
9/1/20264129 W WELLINGTON AVEAvondale31Completed7 daysPhone CallCity 311
9/1/20264129 W WELLINGTON AVEAvondale31Completed7 daysPhone CallCity 311
9/1/2026839 W BELDEN AVELincoln Park43Completed10 daysInternetCity 311
9/1/2026608 W BARRY AVELake View44Completed14 daysMobile DeviceCity 311
9/1/20262332 N AVERS AVELogan Square35Completed14 daysMobile DeviceCity 311
9/1/20261531 W 17TH STLower West Side25Completed10 daysPhone CallCity 311
9/1/20265436 S JUSTINE STNew City16Completed15 daysPhone CallCity 311
9/1/20261865 N DAYTON STLincoln Park43Completed10 daysInternetCity 311
9/1/20268012 S EXCHANGE AVESouth Chicago7Completed8 daysInternetCity 311
9/1/2026233 S WACKER DRLoop42Completed7 daysInternetCity 311
9/1/20264035 N MONTICELLO AVEIrving Park45Completed17 daysInternetCity 311
9/1/20262145 W EASTWOODLincoln Square47Completed15 daysSalesforce Mobile AppCity 311
9/1/202625 S OAKLEY BLVDNear West Side27Completed14 daysPhone CallCity 311
9/1/20262853 N HALSTED STLake View44Completed10 daysInternetCity 311
9/1/20262148 N LATROBE AVEBelmont Cragin36Completed9 daysPhone CallCity 311
9/1/20264124 W 56TH PLWest Elsdon13Completed14 daysMobile DeviceCity 311
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