RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4571 locations in the last 30 days (4740 reports) · Last sighting 14 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.

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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

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/14/2026847 S WABASH AVELoop4Open—InternetCity 311
9/14/20267456 N MAPLEWOOD AVEWest Ridge50Open—Mobile DeviceCity 311
9/14/20266145 W PETERSON AVENorwood Park45Open—Mobile DeviceCity 311
9/14/20268950 S LEAVITT STBeverly19Open—Phone CallCity 311
9/14/20264811 W STRONG STForest Glen45Open—Phone CallCity 311
9/15/20266100 S WOLCOTT AVEWest Englewood16Open—Phone CallCity 311
9/14/20262141 W NORTH AVEWest Town1Open—InternetCity 311
9/15/20261025 N WOOD STWest Town1Open—Phone CallCity 311
9/15/20263817 N KENMORE AVELake View46Open—InternetCity 311
9/14/20261147 N LEAMINGTON AVEAustin37Open—Phone CallCity 311
9/14/20265616 N KEDVALE AVENorth Park39Open—Mobile DeviceCity 311
9/13/20261419 N MAPLEWOOD AVEWest Town1Open—InternetCity 311
9/14/20266328 N ALBANY AVEWest Ridge50Open—InternetCity 311
9/14/20265758 W EDDY STPortage Park30Open—Phone CallCity 311
9/15/20263802 W CORNELIA AVEAvondale30Open—Phone CallCity 311
9/14/20263522 S MAPLEWOOD AVEBrighton Park12Open—Phone CallCity 311
9/15/20264015 W 56TH STWest Elsdon13Open—InternetCity 311
9/14/2026602 N MAY STWest Town27Open—Mobile DeviceCity 311
9/14/20263542 N FREMONT STLake View44Open—Mobile DeviceCity 311
9/14/20268336 S ESSEX AVESouth Chicago7Open—Alderman's OfficeCity 311
9/14/20265310 N CICERO AVEForest Glen39Open—Mobile DeviceCity 311
9/15/20261325 S KOMENSKY AVENorth Lawndale24Open—InternetCity 311
9/14/20263757 W 34TH STSouth Lawndale22Open—Phone CallCity 311
9/15/20263039 N LINCOLN AVELake View32Open—Phone CallCity 311
9/15/20265341 N NOTTINGHAM AVENorwood Park41Open—InternetCity 311
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