RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4444 locations in the last 30 days (4622 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

58,010 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/3/2025318 W 27TH STArmour Square11Completed4 daysInternetCity 311
11/3/20251655 N CAMPBELL AVEWest Town1Completed2 daysMobile DeviceCity 311
11/3/20257800 S UNION AVEAuburn Gresham17Completed4 daysPhone CallCity 311
11/3/20257235 S DAMEN AVEWest Englewood17Completed4 daysInternetCity 311
11/3/20255340 S MEADE AVEGarfield Ridge23Completed2 daysMobile DeviceCity 311
11/3/20257228 S SAWYER AVEChicago Lawn17Completed4 daysAlderman's OfficeCity 311
11/3/20255137 S DORCHESTER AVEHyde Park4Completed2 daysInternetCity 311
11/3/20257818 S INGLESIDE AVEGreater Grand Crossing8Completed3 daysInternetCity 311
11/3/20256620 S KEATING AVEClearing13Completed2 daysMobile DeviceCity 311
11/3/20251842 W LARCHMONT AVENorth Center47Completed2 daysMobile DeviceCity 311
11/3/20252531 N MANGO AVEBelmont Cragin30Completed2 daysInternetCity 311
11/3/20252432 W CORTEZ STWest Town36Completed3 daysInternetCity 311
11/3/20255440 S NORMANDY AVEGarfield Ridge23Completed2 daysInternetCity 311
11/3/20255442 S NORMANDY AVEGarfield Ridge23Completed2 daysInternetCity 311
11/3/20255436 S NORMANDY AVEGarfield Ridge23Completed2 daysInternetCity 311
11/3/20255434 S NORMANDY AVEGarfield Ridge23Completed2 daysInternetCity 311
11/3/202512012 S EMERALD AVEWest Pullman21Completed3 daysPhone CallCity 311
11/3/2025919 N DAMEN AVEWest Town36Completed3 daysMobile DeviceCity 311
11/3/20251917 N PULASKI RDHermosa26Completed2 daysMobile DeviceCity 311
11/3/20254359 W IRVING PARK RDIrving Park30Completed2 daysMobile DeviceCity 311
11/3/20256641 S RICHMOND STChicago Lawn15Completed1 dayInternetCity 311
11/3/202510210 S HARDING AVEMount Greenwood19Completed4 daysInternetCity 311
11/3/20255217G S UNIVERSITY AVEHyde Park5Completed2 daysInternetCity 311
11/3/20252028 W IRVING PARK RDNorth Center47Completed2 daysMobile DeviceCity 311
11/3/20251520 W CHASE AVERogers Park49Completed2 daysspot-open311-Chicago+WorksCity 311
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