RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4593 locations in the last 30 days (4752 reports) · Last sighting 9 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

1,046 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/24/2026216 W 19TH STArmour Square11Open—InternetCity 311
9/24/20262021 N POINT STLogan Square1Open—Phone CallCity 311
9/24/20263675 N ELSTON AVEIrving Park33Open—InternetCity 311
9/24/2026204 N MASONAustin29Open—Salesforce Mobile AppCity 311
9/24/202620 N CARPENTER STNear West Side34Open—InternetCity 311
9/24/20266205 W BERENICE AVEDunning38Open—InternetCity 311
9/24/20261500 W CULLERTON STLower West Side25Open—Phone CallCity 311
9/24/20263458 N HALSTED STLake View46Open—Phone CallCity 311
9/24/20263035 N CENTRAL PARK AVEAvondale35Open—InternetCity 311
9/24/20262343 W FOSTER AVELincoln Square40Open—InternetCity 311
9/24/20267250 S HONORE STWest Englewood17Open—InternetCity 311
9/24/20263226 W JACKSON BLVDEast Garfield Park28Open—InternetCity 311
9/24/2026861 W LAKESIDE PLUptown46Open—Mobile DeviceCity 311
9/24/20262200 S WABASH AVENear South Side3Open—Phone CallCity 311
9/24/20262048 E 73RD STSouth Shore5Open—InternetCity 311
9/24/20264504 N MOZART STAlbany Park33Open—InternetCity 311
9/23/20265008 N MARMORA AVEJefferson Park45Open—InternetCity 311
9/23/20264848 N CLARK STUptown47Open—Mobile DeviceCity 311
9/23/20264015 W NELSON STAvondale31Open—Mobile DeviceCity 311
9/23/20264437 N MALDEN STUptown46Open—Mobile DeviceCity 311
9/23/2026458 N GREEN STWest Town27Open—InternetCity 311
9/23/20263024 W CHASE AVEWest Ridge50Open—InternetCity 311
9/23/20263942 N FRANCISCO AVEIrving Park33Open—InternetCity 311
9/23/20264345 W WILCOX STWest Garfield Park28Completed5 daysInternetCity 311
9/23/20263720 S LOWE AVEBridgeport11Open—Mobile DeviceCity 311
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