RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4513 locations in the last 30 days (4668 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

53,552 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/31/20265226 S MASON AVEGarfield Ridge23Completed15 daysPhone CallCity 311
8/31/20264018 N PLAINFIELD AVEDunning38Completed11 daysPhone CallCity 311
8/31/20264818 N KEDVALE AVEAlbany Park39Completed14 daysInternetCity 311
8/31/202651 E 72ND STGreater Grand Crossing6Completed8 daysPhone CallCity 311
8/31/20266141 W GRAND AVEBelmont Cragin36Completed10 daysMobile DeviceCity 311
8/31/20263905 W 85TH STAshburn18Completed4 daysPhone CallCity 311
8/31/20262334 N MELVINA AVEBelmont Cragin36Completed8 daysPhone CallCity 311
8/31/20261234 W RACE AVEWest Town1Completed11 daysInternetCity 311
8/31/20265128 W WARWICK AVEPortage Park30Completed11 daysInternetCity 311
8/31/20266222 W PATTERSON AVEDunning38Completed3 daysPhone CallCity 311
8/31/20261404 W 112TH PLMorgan Park21Completed10 daysPhone CallCity 311
8/31/20265908 W FOSTER AVEJefferson Park45Completed15 daysInternetCity 311
8/31/20268019 S MARSHFIELD AVEAuburn Gresham17Completed14 daysAlderman's OfficeCity 311
8/31/20267929 S WOOD STAuburn Gresham17Completed14 daysAlderman's OfficeCity 311
8/31/20267536 S LANGLEY AVEGreater Grand Crossing6Completed8 daysPhone CallCity 311
8/31/20264621 N SHERIDAN RDUptown46Completed10 daysInternetCity 311
8/31/20264930 W IOWA STAustin37Completed15 daysPhone CallCity 311
8/31/20263547 W 26TH STSouth Lawndale22Completed4 daysMobile DeviceCity 311
8/31/20262144 N LEAMINGTON AVEBelmont Cragin26Completed15 daysInternetCity 311
8/31/20263551 S UNION AVEBridgeport11Completed11 daysAlderman's OfficeCity 311
8/31/20263549 S UNION AVEBridgeport11Completed11 daysAlderman's OfficeCity 311
8/31/20263545 S UNION AVEBridgeport11Completed11 daysPhone CallCity 311
8/31/2026854 W ALDINE AVELake View44Completed11 daysMobile DeviceCity 311
8/31/20262723 N SOUTHPORT AVELincoln Park32Completed14 daysMobile DeviceCity 311
8/31/20264110 W BARRY AVEAvondale31Completed8 daysInternetCity 311
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