RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4469 locations in the last 30 days (4642 reports) · Last sighting 21 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

1,116 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/22/20266620 West Imlay Street, Chicago, ILNorwood Park————Resident report
10/22/20261828 S PEORIA STLower West Side25Open—Phone CallCity 311
10/22/20261441 W BLACKHAWK STWest Town1Open—InternetCity 311
10/22/20262516 W FOSTER AVELincoln Square40Open—Phone CallCity 311
10/22/2026722 W ADDISON STLake View46Open—Phone CallCity 311
10/22/20265139 W SCHOOL STPortage Park31Completed0 daysInternetCity 311
10/22/20263004 N MENARD AVEBelmont Cragin30Open—InternetCity 311
10/22/20262731 N HAMPDEN CTLincoln Park43Open—Mobile DeviceCity 311
10/22/20267047 S CALIFORNIA AVEChicago Lawn17Open—Phone CallCity 311
10/22/20261437 W MELROSE STLake View32Open—InternetCity 311
10/22/20263900 N SHERIDAN RDLake View46Open—InternetCity 311
10/22/20263653 N BOSWORTH AVELake View47Open—Mobile DeviceCity 311
10/22/20261635 W 17TH STLower West Side25Open—InternetCity 311
10/22/20263312 N NEWCASTLE AVEDunning38Open—InternetCity 311
10/22/20268548 S MACKINAW AVESouth Chicago10Completed4 daysPhone CallCity 311
10/22/2026555 W 87TH STAuburn Gresham21Open—InternetCity 311
10/22/20266620 W IMLAY STNorwood Park41Open—InternetCity 311
10/22/20261810 S RACINE AVELower West Side25Open—InternetCity 311
10/22/20263724 N BELL AVENorth Center47Open—Mobile DeviceCity 311
10/22/20264019 N MANGO AVEPortage Park38Open—InternetCity 311
10/22/20261905 N KOSTNER AVEHermosa26Open—InternetCity 311
10/22/20261715 N KEATING AVEAustin37Open—InternetCity 311
10/22/20265931 S NAGLE AVEClearing13Open—Mobile DeviceCity 311
10/22/20262814 W BIRCHWOOD AVEWest Ridge50Open—Mobile DeviceCity 311
10/22/20261308 S INDEPENDENCE BLVDNorth Lawndale24Open—Phone CallCity 311
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