RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4470 locations in the last 30 days (4616 reports) · Last sighting 2 days 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

54,394 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/21/20257000 S HALSTED STEnglewood16Completed12 daysPhone CallCity 311
8/21/202535 W 104TH PLRoseland9Completed8 daysInternetCity 311
8/21/20253327 W WARREN BLVDEast Garfield Park28Completed8 daysPhone CallCity 311
8/21/20252235 W BELMONT AVENorth Center32Completed12 daysInternetCity 311
8/21/20252451 N ROCKWELL STLogan Square1Completed13 daysPhone CallCity 311
8/21/20251246 W DEVON AVERogers Park49Completed14 daysAlderman's OfficeCity 311
8/21/20256354 S ROCKWELL STChicago Lawn16Completed12 daysInternetCity 311
8/21/20252146 N CLAREMONT AVELogan Square32Completed12 daysInternetCity 311
8/21/20253300 W DOUGLAS BLVDNorth Lawndale24Completed7 daysAlderman's OfficeCity 311
8/21/20253400 W DOUGLAS BLVDNorth Lawndale24Completed7 daysAlderman's OfficeCity 311
8/21/20253300 W DOUGLAS BLVDNorth Lawndale24Completed7 daysAlderman's OfficeCity 311
8/21/20251601 S DEARBORN STNear South Side3Completed4 daysInternetCity 311
8/21/20252708 W CHASE AVEWest Ridge50Completed7 daysAlderman's OfficeCity 311
8/21/20255315 N FRANCISCO AVELincoln Square39Completed12 daysMobile DeviceCity 311
8/21/20252544 N MARMORA AVEBelmont Cragin30Completed8 daysAlderman's OfficeCity 311
8/21/20253400 W DOUGLAS BLVDNorth Lawndale24Completed7 daysAlderman's OfficeCity 311
8/21/20253514 N FREMONT STLake View44Completed14 daysPhone CallCity 311
8/21/20256154 W THORNDALE AVENorwood Park45Completed13 daysAlderman's OfficeCity 311
8/21/20256300 S ELLIS AVEWoodlawn20Completed7 daysPhone CallCity 311
8/21/20256300 S GREENWOOD AVEWoodlawn20Completed7 daysPhone CallCity 311
8/21/20256300 S INGLESIDE AVEWoodlawn20Completed7 daysPhone CallCity 311
8/21/20253739 W 79TH STAshburn18Completed13 daysInternetCity 311
8/21/20251406 S KARLOV AVENorth Lawndale24Completed5 daysAlderman's OfficeCity 311
8/21/20251033 W NEWPORT AVELake View44Completed12 daysPhone CallCity 311
8/21/20251645 N ALBANY AVEHumboldt Park26Completed12 daysInternetCity 311
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