RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4449 locations in the last 30 days (4620 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

1,116 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/21/20263041 N NARRAGANSETT AVEBelmont Cragin30Open—InternetCity 311
10/21/20263111 W WELLINGTON AVEAvondale35Open—Mobile DeviceCity 311
10/21/20265035 S EAST END AVEKenwood5Open—InternetCity 311
10/21/20265700 W WARWICK AVEPortage Park38Open—InternetCity 311
10/21/2026172 W EUGENIE STLincoln Park43Open—InternetCity 311
10/21/20264855 N MCVICKER AVEJefferson Park45Open—InternetCity 311
10/21/20261319 W SUNNYSIDE AVEUptown46Open—Mobile DeviceCity 311
10/21/20266146 S TROY STChicago Lawn14Open—Mobile DeviceCity 311
10/21/20262330 W 21ST STLower West Side25Open—Mobile DeviceCity 311
10/21/20262919 N NAGLE AVEBelmont Cragin36Open—InternetCity 311
10/21/20262600 S MILLARD AVESouth Lawndale22Open—Mobile DeviceCity 311
10/21/20264719 W LAWRENCE AVEIrving Park39Open—Mobile DeviceCity 311
10/21/202633 N DEARBORN STLoop34Completed1 dayInternetCity 311
10/21/20262172 N PARKSIDE AVEBelmont Cragin36Open—Phone CallCity 311
10/21/20264040 W JACKSON BLVDWest Garfield Park28Open—Mobile DeviceCity 311
10/21/20261616 W CORNELIA AVELake View47Open—InternetCity 311
10/21/20262230 N LINCOLN PARK WESTLincoln Park43Open—InternetCity 311
10/21/20262355 N COMMONWEALTH AVELincoln Park43Open—InternetCity 311
10/21/20261516 N KEDVALE AVEHumboldt Park36Open—InternetCity 311
10/21/2026832 N FAIRFIELD AVEWest Town36Open—Mobile DeviceCity 311
10/21/20262758 W 59TH STGage Park15Open—Alderman's OfficeCity 311
10/21/20262746 W 59TH STGage Park15Open—Phone CallCity 311
10/21/20264838 N MOODY AVEJefferson Park45Open—Mobile DeviceCity 311
10/21/20266630 N MOZART STWest Ridge50Open—Phone CallCity 311
10/21/20265158 N MOODY AVEJefferson Park45Open—Phone CallCity 311
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