RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4605 locations in the last 30 days (4786 reports) · Last sighting 13 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

1,116 reports match your filters.

Clear filters
DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/20/202610421 S GREEN STWashington Heights21Open—Mobile DeviceCity 311
10/20/20262200 W GREENLEAF AVEWest Ridge50Completed7 daysMobile DeviceCity 311
10/20/202632 N MAYFIELD AVEAustin29Open—Mobile DeviceCity 311
10/20/20269541 S LA SALLE STRoseland9Open—Phone CallCity 311
10/20/20266032 N MAPLEWOOD AVEWest Ridge40Open—Mobile DeviceCity 311
10/20/20265450 N MULLIGAN AVEJefferson Park41Open—Mobile DeviceCity 311
10/20/20264718 S MICHIGAN AVEGrand Boulevard3Completed7 daysInternetCity 311
10/20/20261942 W WABANSIA AVEWest Town32Open—InternetCity 311
10/20/20263414 W LYNDALE STLogan Square35Open—Mobile DeviceCity 311
10/20/202633 S WABASH AVELoop34Completed1 dayInternetCity 311
10/20/20262127 W SCHILLER STWest Town1Open—Mobile DeviceCity 311
10/20/20263535 N RETA AVELake View44Open—Mobile DeviceCity 311
10/20/20262721 S ST LOUIS AVESouth Lawndale22Open—Mobile DeviceCity 311
10/20/20263683 N ELSTON AVEIrving Park33Open—Mobile DeviceCity 311
10/20/20265254 W ROSCOE STPortage Park31Completed2 daysMobile DeviceCity 311
10/20/20261815 N WASHTENAW AVELogan Square1Open—InternetCity 311
10/20/202611310 S PEORIA STMorgan Park21Open—Phone CallCity 311
10/20/2026635 W BELDEN AVELincoln Park43Open—Mobile DeviceCity 311
10/20/2026640 W BELDEN AVELincoln Park43Open—Mobile DeviceCity 311
10/20/20269772 S LOOMIS STWashington Heights21Completed3 daysPhone CallCity 311
10/20/20269772 S LOOMIS STWashington Heights21Completed3 daysPhone CallCity 311
10/20/20261354 W 98TH STWashington Heights21Open—Phone CallCity 311
10/20/20261354 W 98TH STWashington Heights21Open—Phone CallCity 311
10/20/20261354 W 98TH STWashington Heights21Open—Phone CallCity 311
10/20/20263408 S LITUANICA AVEBridgeport11Open—InternetCity 311
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