RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4460 locations in the last 30 days (4644 reports) · Last sighting 11 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

58,468 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/17/20251851 W CULLERTON STLower West Side25Completed2 daysInternetCity 311
11/17/20254724 S LANGLEY AVEGrand Boulevard4Completed1 dayPhone CallCity 311
11/17/2025640 W 35TH STBridgeport11Completed1 dayAlderman's OfficeCity 311
11/17/20254300 S ST LOUIS AVEBrighton Park12Completed2 daysPhone CallCity 311
11/17/20251200 W RANDOLPH STNear West Side27Completed1 dayInternetCity 311
11/17/20253766 N PINE GROVE AVELake View46Completed2 daysMobile DeviceCity 311
11/17/202510314 S CALUMET AVERoseland9Completed2 daysPhone CallCity 311
11/17/202510314 S CALUMET AVERoseland9Completed1 dayPhone CallCity 311
11/17/20255356 N LUNA AVEJefferson Park45Completed2 daysPhone CallCity 311
11/17/20254425 N MALDEN STUptown46Completed2 daysInternetCity 311
11/17/20253034 N SAWYER AVEAvondale35Completed2 daysInternetCity 311
11/17/20254122 N LAVERGNE AVEPortage Park38Completed2 daysPhone CallCity 311
11/17/20254122 N LAVERGNE AVEPortage Park38Completed1 dayPhone CallCity 311
11/17/20253900 W 70TH PLWest Lawn23Completed1 dayPhone CallCity 311
11/17/202510205 S AVENUE NEast Side10Completed3 daysWalk-inCity 311
11/17/20256206 N FRANCISCO AVEWest Ridge50Completed1 dayPhone CallCity 311
11/17/20253536 N PANAMA AVEDunning38Completed1 dayInternetCity 311
11/17/20252316 W SUNNYSIDE AVELincoln Square47Completed1 dayMobile DeviceCity 311
11/17/20252252 N WESTERN AVELogan Square1Completed1 dayMobile DeviceCity 311
11/17/20255934 N MULLIGAN AVENorwood Park45Completed2 daysAlderman's OfficeCity 311
11/17/20253909 N SAWYER AVEIrving Park33Completed2 daysPhone CallCity 311
11/17/20255934 N HERMITAGE AVEEdgewater40Completed2 daysInternetCity 311
11/17/20252940 N RIVERWALKLogan Square32Completed2 daysMobile DeviceCity 311
11/17/20254608 S MICHIGAN AVEGrand Boulevard3Completed1 dayPhone CallCity 311
11/17/20252913 N WESTERN AVELogan Square32Completed2 daysMobile DeviceCity 311
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