RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4452 locations in the last 30 days (4638 reports) · Last sighting 15 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

58,146 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/11/20262258 W CULLERTON STLower West Side25Completed3 daysMobile DeviceCity 311
9/18/20265312 W WASHINGTON BLVDAustin37Completed3 daysPhone CallCity 311
4/18/20262303 W MORSE AVEWest Ridge40Completed3 daysInternetCity 311
11/3/20253600 N OAK PARK AVEDunning38Completed3 daysPhone CallCity 311
5/15/20263086 S LYMAN STBridgeport11Completed3 daysPhone CallCity 311
6/9/20265339 S RACINE AVENew City16Completed3 daysPhone CallCity 311
10/24/20255823 N CHRISTIANA AVENorth Park39Completed3 daysPhone CallCity 311
10/28/202511042 S ARTESIAN AVEMorgan Park19Completed3 daysPhone CallCity 311
4/27/20263816 N WILTON AVELake View46Completed3 daysInternetCity 311
5/25/20263626 W 61ST STWest Lawn23Completed3 daysInternetCity 311
4/10/20266104 N LAWNDALE AVENorth Park50Completed3 daysPhone CallCity 311
3/20/20262022 W 18TH PLLower West Side25Completed3 daysPhone CallCity 311
11/7/202510059 S INDIANA AVERoseland9Completed3 daysPhone CallCity 311
3/16/20269610 S DOBSON AVEPullman8Completed3 daysAlderman's OfficeCity 311
7/31/20268519 S BUFFALO AVESouth Chicago10Completed3 daysPhone CallCity 311
4/26/20268115 S ELIZABETH STAuburn Gresham17Completed3 daysPhone CallCity 311
9/27/20253535 N RETA AVELake View44Completed3 daysInternetCity 311
6/21/20263530 W WABANSIA AVEHumboldt Park26Completed3 daysInternetCity 311
5/15/20265951 S LAFLIN STWest Englewood16Completed3 daysPhone CallCity 311
4/21/2026501 N CLAREMONT AVEWest Town36Completed3 daysPhone CallCity 311
12/6/2025800 S MICHIGAN AVELoop4Completed3 daysInternetCity 311
5/15/20262455 S ST LOUIS AVESouth Lawndale22Completed3 daysInternetCity 311
6/15/20266929 S THROOP STWest Englewood17Completed3 daysAlderman's OfficeCity 311
9/29/20262831 N HARLEM AVEMontclare29Completed3 daysAlderman's OfficeCity 311
3/20/2026833 N WINCHESTER AVEWest Town36Completed3 daysPhone CallCity 311
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