RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4724 locations in the last 30 days (4880 reports) · Last sighting 23 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

1,107 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/29/20267337 N DAMEN AVERogers Park49Open—Phone CallCity 311
9/29/20265232 N LATROBE AVEJefferson Park45Open—InternetCity 311
9/29/20262131 N SHEFFIELD AVELincoln Park43Open—Mobile DeviceCity 311
9/29/20266401 N HARLEM AVENorwood Park41Open—Phone CallCity 311
9/29/20266401 N HARLEM AVEEdison Park41Open—Phone CallCity 311
9/29/20266201 N KILDARE AVEForest Glen39Open—Phone CallCity 311
9/29/20264849 N RIDGEWAY AVEAlbany Park33Open—Phone CallCity 311
9/29/20264635 W PETERSON AVEForest Glen39Open—Phone CallCity 311
9/29/20267622 S JEFFERY AVESouth Shore8Open—Mobile DeviceCity 311
9/29/20263540 N JANSSEN AVELake View44Open—Phone CallCity 311
9/29/20266953 W SCHUBERT AVEMontclare36Open—Mobile DeviceCity 311
9/29/20263405 W 38TH STBrighton Park12Open—InternetCity 311
9/29/20262737 N OAK PARK AVEMontclare36Open—Alderman's OfficeCity 311
9/29/20267770 S EXCHANGE AVESouth Shore7Open—Phone CallCity 311
9/29/20262848 E 78TH STSouth Shore7Open—Phone CallCity 311
9/29/20266140 W PATTERSON AVEDunning38Open—Mobile DeviceCity 311
9/29/20261744 N WOLCOTT AVEWest Town32Open—Mobile DeviceCity 311
9/29/20268236 S HOUSTON AVESouth Chicago7Open—Phone CallCity 311
9/29/20262046 W HADDON AVEWest Town1Open—InternetCity 311
9/29/20268009 S SACRAMENTO AVEAshburn18Open—InternetCity 311
9/29/20262540 S SPRINGFIELD AVESouth Lawndale22Open—InternetCity 311
9/29/20262404 S HARDING AVESouth Lawndale22Open—Mobile DeviceCity 311
9/29/20262419 S HARDING AVESouth Lawndale22Open—Mobile DeviceCity 311
9/29/20266100 S CHAMPLAIN AVEWoodlawn20Open—Phone CallCity 311
9/29/20266200 S CHAMPLAIN AVEWoodlawn20Open—Phone CallCity 311
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