RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4660 locations in the last 30 days (4833 reports) · Last sighting 8 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

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/22/20262723 W CARMEN AVELincoln Square40Completed1 dayAlderman's OfficeCity 311
9/22/20262936 N MONITOR AVEBelmont Cragin30Open—InternetCity 311
9/22/20263127 N LAWNDALE AVEAvondale35Open—InternetCity 311
9/22/20265373 N BOWMANVILLE AVELincoln Square40Open—InternetCity 311
9/22/20263851 N LAKEWOOD AVELake View44Open—Phone CallCity 311
9/22/20262451 N ROCKWELL STLogan Square1Open—Phone CallCity 311
9/22/202611153 S ST LOUIS AVEMount Greenwood19Open—Mobile DeviceCity 311
9/22/20264220 N WINCHESTER AVENorth Center47Open—Phone CallCity 311
9/22/2026140 N LOREL AVEAustin37Open—Alderman's OfficeCity 311
9/22/20264903 W RACE AVEAustin37Open—Phone CallCity 311
9/22/20261521 E 84TH PLAvalon Park8Open—InternetCity 311
9/22/20266641 S HERMITAGE AVEWest Englewood16Open—Alderman's OfficeCity 311
9/22/20267459 S CHAMPLAIN AVEGreater Grand Crossing6Open—Mobile DeviceCity 311
9/22/2026142 W SWANN STFuller Park20Open—Phone CallCity 311
9/22/20261637 N FRANCISCO AVEWest Town26Open—Phone CallCity 311
9/22/20261928 W OHIO STWest Town36Open—Phone CallCity 311
9/22/2026527 W BARRY AVELake View44Open—InternetCity 311
9/22/2026644 E 75TH STGreater Grand Crossing6Open—Mobile DeviceCity 311
9/22/20264929 W WARWICK AVEPortage Park30Open—Phone CallCity 311
9/22/20265604 S WOLCOTT AVEWest Englewood15Open—Phone CallCity 311
9/22/20264021 N MELVINA AVEPortage Park38Open—Phone CallCity 311
9/22/20261614 W WILSON AVEUptown47Open—InternetCity 311
9/22/202666 E 21ST STNear South Side3Open—Phone CallCity 311
9/22/20261330 W CHASE AVERogers Park49Open—Phone CallCity 311
9/22/202611336 S INDIANA AVERoseland9Open—Alderman's OfficeCity 311
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