RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4316 locations in the last 30 days (4501 reports) · Last sighting 14 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

58,530 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/24/2025838 N WESTERN AVEWest Town36Completed1 dayMobile DeviceCity 311
11/24/20252554 N NEW ENGLAND AVEMontclare36Completed4 daysPhone CallCity 311
11/24/20254345 W 55TH STWest Elsdon13Completed2 daysInternetCity 311
11/24/20255804 S KENNETH AVEWest Elsdon13Completed2 daysInternetCity 311
11/24/202510615 S SANGAMON STWashington Heights21Completed2 daysPhone CallCity 311
11/24/20256232 S TRIPP AVEWest Lawn13Completed2 daysInternetCity 311
11/24/20256604 S KOSTNER AVEWest Lawn13Completed2 daysInternetCity 311
11/24/20256459 S KNOX AVEClearing13Completed2 daysInternetCity 311
11/24/20256522 S KEATING AVEClearing13Completed2 daysInternetCity 311
11/24/20251929 W BERWYN AVELincoln Square40Completed2 daysInternetCity 311
11/24/20256243 S PARKSIDE AVEClearing13Completed2 daysInternetCity 311
11/24/20255147 S MONITOR AVEGarfield Ridge23Completed7 daysPhone CallCity 311
11/24/20255138 S LUNA AVEGarfield Ridge23Completed7 daysPhone CallCity 311
11/24/20251745 W MELROSE STLake View32Completed1 dayMobile DeviceCity 311
11/24/20252460 W CORTLANDLogan Square1Completed2 daysSalesforce Mobile AppCity 311
11/24/20251540 N MILWAUKEE AVEWest Town1Completed2 daysPhone CallCity 311
11/24/202510836 S UNION AVERoseland21Completed2 daysInternetCity 311
11/24/20256900 S PERRY AVEGreater Grand Crossing6Completed2 daysPhone CallCity 311
11/24/20253756 N KEELER AVEIrving Park30Completed4 daysInternetCity 311
11/24/20251145 N AVERS AVEHumboldt Park27Completed7 daysPhone CallCity 311
11/24/20252636 N AVERS AVELogan Square35Completed4 daysInternetCity 311
11/24/20256308 N DRAKE AVENorth Park50Completed2 daysPhone CallCity 311
11/24/20255438 S KOMENSKY AVEWest Elsdon23Completed7 daysMobile DeviceCity 311
11/24/20253838 N GREENVIEW AVELake View46Completed2 daysInternetCity 311
11/24/202510042 S MORGAN STWashington Heights21Completed2 daysInternetCity 311
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