RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4403 locations in the last 30 days (4566 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

56,705 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/20/20267612 W CATALPA AVENorwood Park41Completed9 daysInternetCity 311
7/20/20267620 W CATALPA AVENorwood Park41Completed9 daysInternetCity 311
7/20/20264946 S ST LAWRENCE AVEGrand Boulevard4Completed10 daysInternetCity 311
7/20/20263846 N ALTA VISTA TERLake View46Completed9 daysMobile DeviceCity 311
7/20/20264944 S ST LAWRENCE AVEGrand Boulevard4Completed10 daysInternetCity 311
7/20/20262135 W HADDON AVEWest Town1Completed4 daysMobile DeviceCity 311
7/20/20267015 W SUMMERDALE AVENorwood Park41Completed14 daysPhone CallCity 311
7/20/20268240 S SOUTH SHORE DRSouth Chicago7Completed9 daysMobile DeviceCity 311
7/20/20265510 N ORIOLE AVENorwood Park41Completed9 daysInternetCity 311
7/20/20266734 S KEELER AVEWest Lawn23Completed10 daysMobile DeviceCity 311
7/20/20265506 N ORIOLE AVENorwood Park41Completed9 daysInternetCity 311
7/20/20263924 W WILCOX STWest Garfield Park28Completed8 daysInternetCity 311
7/20/20265143 N SAYRE AVENorwood Park41Completed9 daysMobile DeviceCity 311
7/20/20265211 S LEAMINGTON AVEGarfield Ridge23Completed7 daysMobile DeviceCity 311
7/20/20265500 N ORIOLE AVENorwood Park41Completed9 daysInternetCity 311
7/20/20262840 N MULLIGAN AVEBelmont Cragin30Completed2 daysPhone CallCity 311
7/20/20268301 S LOOMIS BLVDAuburn Gresham17Canceled1 dayPhone CallCity 311
7/20/202610318 S CENTRAL PARK AVEMount Greenwood19Completed1 dayMobile DeviceCity 311
7/20/202610314 S CENTRAL PARK AVEMount Greenwood19Completed1 dayMobile DeviceCity 311
7/20/20264743 W GRAND AVEAustin37Completed3 daysMobile DeviceCity 311
7/20/20263133 N OAK PARK AVEMontclare36Completed1 dayMobile DeviceCity 311
7/20/20269241 S DOBSON AVEBurnside8Completed7 daysAlderman's OfficeCity 311
7/20/20264023 N MONTICELLO AVEIrving Park45Completed15 daysPhone CallCity 311
7/20/20267527 N RIDGE AVERogers Park49Completed10 daysMobile DeviceCity 311
7/20/20261863 S CENTRAL PARK AVENorth Lawndale24Completed7 daysMobile DeviceCity 311
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