RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4544 locations in the last 30 days (4691 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

1,102 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/9/20263818 N LEAVITT STNorth Center47Open—InternetCity 311
10/9/20261819 N ST LOUIS AVELogan Square26Open—Mobile DeviceCity 311
10/9/20263609 S ARCHER AVEMcKinley Park12Open—Mobile DeviceCity 311
10/9/20264350 S HERMITAGE AVENew City15Open—Mobile DeviceCity 311
10/9/20264349 S HERMITAGE AVENew City15Open—Mobile DeviceCity 311
10/9/20265330 W QUINCY STAustin29Open—Phone CallCity 311
10/9/2026821 E 88TH PLChatham8Open—Phone CallCity 311
10/9/20265630 N LINCOLN AVEWest Ridge40Open—Mobile DeviceCity 311
10/9/20263215 N OZARK AVEDunning38Open—Mobile DeviceCity 311
10/9/20268100 S PAXTON AVESouth Chicago8Open—Phone CallCity 311
10/9/20268100 S MERRILL AVESouth Chicago8Open—Phone CallCity 311
10/9/20261726 W JARVIS AVERogers Park49Open—Mobile DeviceCity 311
10/9/20262018 W ADAMS STNear West Side27Open—Phone CallCity 311
10/9/20265703 S CHRISTIANA AVEGage Park14Open—Mobile DeviceCity 311
10/9/20262936 N PARKSIDE AVEBelmont Cragin31Open—InternetCity 311
10/9/20265121 W GRACE STPortage Park30Open—Phone CallCity 311
10/9/20263233 N WILTON AVELake View44Open—InternetCity 311
10/9/20268128 S EMERALD AVEAuburn Gresham6Open—Phone CallCity 311
10/9/20261310 N BELL AVEWest Town1Open—Alderman's OfficeCity 311
10/9/20263242 S NORMAL AVEBridgeport11Open—Mobile DeviceCity 311
10/9/202611322 S YALE AVERoseland9Open—Phone CallCity 311
10/9/20265817 S NASHVILLE AVEGarfield Ridge13Open—Mobile DeviceCity 311
10/9/20267831 S ST LOUIS AVEAshburn18Open—InternetCity 311
10/9/20261813 N DAYTON STLincoln Park43Open—InternetCity 311
10/9/20261549 W BARRY AVELake View32Open—InternetCity 311
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