RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4679 locations in the last 30 days (4836 reports) · Last sighting 11 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

1,102 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/8/20266015 S MICHIGAN AVEWashington Park20Open—Phone CallCity 311
10/8/20263731 N NOTTINGHAM AVEDunning38Open—InternetCity 311
10/8/20264737 S ST LAWRENCE AVEGrand Boulevard4Open—InternetCity 311
10/8/20263733 N NOTTINGHAM AVEDunning38Open—InternetCity 311
10/8/20262316 N MENARD AVEBelmont Cragin36Open—InternetCity 311
10/8/20261418 W CULLERTON STLower West Side25Open—Mobile DeviceCity 311
10/8/20266104 S WOOD STWest Englewood15Open—InternetCity 311
10/8/20261634 W MORSE AVERogers Park49Open—Phone CallCity 311
10/8/20263132 N CLIFTON AVELake View44Open—InternetCity 311
10/8/20261532 W BIRCHWOOD AVERogers Park49Open—Phone CallCity 311
10/8/20265544 N ASHLAND AVEEdgewater40Open—Phone CallCity 311
10/8/20265649 N SACRAMENTO AVEWest Ridge50Open—InternetCity 311
10/8/20265734 W EDDY STPortage Park30Open—InternetCity 311
10/8/20267741 S WABASH AVEGreater Grand Crossing6Open—Mobile DeviceCity 311
10/8/20262212 W IRVING PARK RDNorth Center47Open—Mobile DeviceCity 311
10/8/20264343 S LAKE PARK AVEKenwood4Open—InternetCity 311
10/8/20268542 W CATALPA AVEO'Hare41Open—InternetCity 311
10/8/20267247 S RIDGELAND AVESouth Shore7Open—Phone CallCity 311
10/8/20263336 N MELVINA AVEDunning30Open—Mobile DeviceCity 311
10/8/20266259 W HENDERSON STDunning30Open—Mobile DeviceCity 311
10/8/20261832 W WARNER AVENorth Center47Open—Mobile DeviceCity 311
10/8/2026859 W LILL AVELincoln Park43Open—InternetCity 311
10/8/20263314 N DRAKE AVEAvondale35Open—Phone CallCity 311
10/8/202610010 S GREEN STWashington Heights21Open—Phone CallCity 311
10/8/20264759 S LAMON AVEGarfield Ridge22Open—Mobile DeviceCity 311
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