RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4223 locations in the last 30 days (4376 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

920 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/16/20264414 S MOZART STBrighton Park12Open—InternetCity 311
10/16/20262801 S KEDZIE AVESouth Lawndale25Open—InternetCity 311
10/16/20261924 S RACINE AVELower West Side25Open—Mobile DeviceCity 311
10/16/20264335 N HAMLIN AVEIrving Park33Open—Mobile DeviceCity 311
10/16/20264011 N PAULINA STLake View47Open—InternetCity 311
10/16/20263526 N RETA AVELake View44Open—InternetCity 311
10/16/20263937 N HAMILTON AVENorth Center47Open—InternetCity 311
10/16/20265022 W DAKIN STPortage Park45Open—InternetCity 311
10/16/20261500 N LOTUS AVEAustin37Open—Phone CallCity 311
10/16/20264819 W CRYSTAL STAustin37Open—InternetCity 311
10/16/20265311 S ELLIS AVEHyde Park5Open—Mobile DeviceCity 311
10/16/20262212 W ADDISON STNorth Center47Open—Mobile DeviceCity 311
10/16/20261417 N CLEAVER STWest Town1Open—Mobile DeviceCity 311
10/16/20262231 W LYNDALE STLogan Square32Open—InternetCity 311
10/16/20264733 N SAWYER AVEAlbany Park33Open—InternetCity 311
10/16/20262861 W 84TH STAshburn18Open—InternetCity 311
10/16/20262608 S SHIELDS AVEArmour Square11Open—Phone CallCity 311
10/16/20262765 N KENMORE AVELincoln Park43Open—InternetCity 311
10/16/20264521 N TROY STAlbany Park33Open—Mobile DeviceCity 311
10/16/20264137 N PULASKI RDIrving Park39Open—Mobile DeviceCity 311
10/16/20262304 S KILDARE AVENorth Lawndale22Open—Phone CallCity 311
10/16/20262308 S KILDARE AVENorth Lawndale22Open—Phone CallCity 311
10/16/20266210 N DRAKE AVENorth Park50Open—Mobile DeviceCity 311
10/16/20266211 W BERTEAU AVEPortage Park38Open—InternetCity 311
10/16/20264006 N MCVICKER AVEPortage Park38Open—InternetCity 311
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