RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4578 locations in the last 30 days (4728 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.

32080fewer → more

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

54,551 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/21/20266243 N LENOX AVEForest Glen39Completed7 daysPhone CallCity 311
8/21/20264550 N LOWELL AVEIrving Park39Completed12 daysPhone CallCity 311
8/21/20262845 W 25TH STSouth Lawndale24Completed12 daysPhone CallCity 311
8/21/20265830 W ROSCOE STPortage Park30Completed12 daysInternetCity 311
8/21/20269200 S WOODLAWN AVEBurnside8Completed5 daysAlderman's OfficeCity 311
8/21/20263853 N JANSSEN AVELake View46Completed13 daysInternetCity 311
8/21/20261833 N MILWAUKEE AVELogan Square32Completed13 daysMobile DeviceCity 311
8/21/20268412 S DANTE AVEAvalon Park8Completed5 daysInternetCity 311
8/21/20268139 S MERRILL AVESouth Chicago8Completed3 daysPhone CallCity 311
8/21/20265117 S AUSTIN AVEGarfield Ridge23Completed11 daysPhone CallCity 311
8/21/20263549 N ORANGE AVEDunning38Completed12 daysAlderman's OfficeCity 311
8/21/20263513 N SEMINARY AVELake View44Completed12 daysPhone CallCity 311
8/21/20261900 N HUDSON AVELincoln Park43Completed13 daysPhone CallCity 311
8/21/20268205 S PRAIRIE AVEChatham6Completed10 daysPhone CallCity 311
8/21/20261900 N HUDSON AVELincoln Park43Completed13 daysPhone CallCity 311
8/21/20264856 N KEDVALE AVEAlbany Park39Completed12 daysAlderman's OfficeCity 311
8/21/20264856 W IOWA STAustin37Completed6 daysPhone CallCity 311
8/21/20261448 W BERWYN AVEEdgewater48Completed12 daysInternetCity 311
8/21/20261423 W 110TH PLMorgan Park21Completed12 daysPhone CallCity 311
8/21/20265235 S LOREL AVEGarfield Ridge23Completed11 daysPhone CallCity 311
8/21/20267651 S CARPENTER STAuburn Gresham17Completed13 daysPhone CallCity 311
8/21/20265737 S ARTESIAN AVEGage Park15Completed13 daysPhone CallCity 311
8/21/20268065 S ST LOUIS AVEAshburn18Completed13 daysPhone CallCity 311
8/21/20262322 N SACRAMENTOLogan Square35Completed13 daysSalesforce Mobile AppCity 311
8/21/20263342 W POLK STEast Garfield Park24Completed12 daysPhone CallCity 311
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