RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4358 locations in the last 30 days (4522 reports) · Last sighting 21 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

57,594 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/4/20266127 N KIRKWOOD AVEForest Glen39Completed9 daysInternetCity 311
9/8/20268407 S OGLESBY AVESouth Chicago8Completed9 daysPhone CallCity 311
9/2/202610512 S INDIANA AVERoseland9Completed9 daysInternetCity 311
7/13/20265306 W GRACE STPortage Park30Completed9 daysMobile DeviceCity 311
7/29/20263745 N SHEFFIELD AVELake View44Completed9 daysInternetCity 311
9/3/20257353 N ROGERS AVERogers Park49Completed9 daysMobile DeviceCity 311
8/25/20264545 N CLARENDON AVEUptown46Completed9 daysInternetCity 311
9/15/20251946 N SEMINARY AVELincoln Park43Completed9 daysPhone CallCity 311
9/30/20256412 S LA CROSSE AVEClearing13Completed9 daysAlderman's OfficeCity 311
8/6/20251645 N ROCKWELL STWest Town1Completed9 daysInternetCity 311
8/17/20251723 W ROSCOE STLake View32Completed9 daysMobile DeviceCity 311
9/28/20267100 S OGLESBY AVESouth Shore5Completed9 daysPhone CallCity 311
8/24/20252140 N CLAREMONT AVELogan Square32Completed9 daysMobile DeviceCity 311
8/20/20259635 S SANGAMON STWashington Heights21Completed9 daysPhone CallCity 311
7/19/20266340 N HAMLIN AVENorth Park39Completed9 daysMobile DeviceCity 311
10/6/2025839 W 50TH STNew City20Completed9 daysPhone CallCity 311
9/8/20253936 N OAK PARK AVEDunning38Completed9 daysMobile DeviceCity 311
9/2/20261742 N SEDGWICK STLincoln Park43Completed9 daysPhone CallCity 311
8/24/20263255 N CENTRAL AVEPortage Park30Completed9 daysAlderman's OfficeCity 311
9/15/20251630 N DAYTON STLincoln Park43Completed9 daysMobile DeviceCity 311
7/28/2026201 E RANDOLPH STLoop42Completed9 daysInternetCity 311
9/6/20252355 W 110TH PLMorgan Park19Completed9 daysInternetCity 311
8/10/20254856 W FOSTER AVEForest Glen39Completed9 daysPhone CallCity 311
8/27/20252836 S CHRISTIANA AVESouth Lawndale22Completed9 daysPhone CallCity 311
9/17/202565 E 102ND STRoseland9Completed9 daysPhone CallCity 311
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