RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4552 locations in the last 30 days (4699 reports) · Last sighting 23 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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/9/20251424 W GRAND AVEWest Town1Completed13 daysInternetCity 311
9/9/20258124 S BRANDON AVESouth Chicago7Completed13 daysMobile DeviceCity 311
9/9/20256619 N ARTESIAN AVEWest Ridge50Completed13 daysInternetCity 311
9/9/20253425 W DICKENS AVELogan Square26Completed10 daysMobile DeviceCity 311
9/9/202511041 S ST LOUIS AVEMount Greenwood19Completed8 daysspot-open311-Chicago+WorksCity 311
9/9/20255134 W HENDERSON STPortage Park31Completed12 daysMobile DeviceCity 311
9/9/20252712 S AVERS AVESouth Lawndale22Completed9 daysInternetCity 311
9/9/20252640 W GRAND AVEWest Town36Completed9 daysMobile DeviceCity 311
9/9/20251849 W 34TH PLMcKinley Park11Completed9 daysMobile DeviceCity 311
9/9/20254430 N ARTESIAN AVELincoln Square47Completed9 daysMobile DeviceCity 311
9/9/20253603 W WOLFRAM STAvondale35Completed9 daysMobile DeviceCity 311
9/9/20251261 W ARGYLE STUptown47Completed9 daysMobile DeviceCity 311
9/9/20257723 S STATE STGreater Grand Crossing6Completed9 daysMobile DeviceCity 311
9/9/20254024 W 47TH STArcher Heights14Completed12 daysInternetCity 311
9/10/20254855 N KENMORE AVEUptown46Completed7 daysInternetCity 311
9/10/20253503 W LAWRENCE AVEAlbany Park33Completed8 daysMobile DeviceCity 311
9/10/20254738 N ST LOUIS AVEAlbany Park33Completed8 daysMobile DeviceCity 311
9/10/2025909 W LAKESIDE PLUptown46Completed7 daysMobile DeviceCity 311
9/10/20258638 S WOOD STAuburn Gresham18Completed8 daysPhone CallCity 311
9/10/20254342 N KEDVALE AVEIrving Park39Completed9 daysInternetCity 311
9/10/20257427 S EUCLID PKWYSouth Shore7Completed13 daysMobile DeviceCity 311
9/10/20252839 N MONT CLARE AVEMontclare29Completed13 daysInternetCity 311
9/10/20255610 N WESTERN AVEWest Ridge40Completed13 daysInternetCity 311
9/10/20255535 S KIMBARK AVEHyde Park5Completed2 daysInternetCity 311
9/10/20252335 N MARMORA AVEBelmont Cragin36Completed8 daysInternetCity 311
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