RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4544 locations in the last 30 days (4691 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

55,547 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/7/2026530 W SURF STLake View44Completed12 daysInternetCity 311
8/7/20263720 S UNION AVEBridgeport11Completed7 daysMobile DeviceCity 311
8/7/20267530 S LANGLEY AVEGreater Grand Crossing6Completed12 daysMobile DeviceCity 311
8/7/2026879 N MARSHFIELD AVEWest Town1Completed12 daysMobile DeviceCity 311
8/7/20262320 S HAMLIN AVESouth Lawndale22Completed6 daysInternetCity 311
8/7/20265448 S MENARD AVEGarfield Ridge23Completed10 daysPhone CallCity 311
8/7/20264845 N CENTRALJefferson Park45Completed14 daysSalesforce Mobile AppCity 311
8/7/20262129 N MERRIMAC AVEBelmont Cragin36Completed5 daysMobile DeviceCity 311
8/7/20267357 N WINCHESTER AVERogers Park49Completed12 daysInternetCity 311
8/7/20262650 S KEDZIE AVESouth Lawndale25Completed4 daysInternetCity 311
8/7/20261334 W THORNDALE AVEEdgewater48Completed14 daysInternetCity 311
8/7/20264648 W WASHINGTON BLVDAustin28Completed3 daysPhone CallCity 311
8/6/20262628 W 25TH STSouth Lawndale25Completed5 daysPhone CallCity 311
8/6/2026914 W BARRY AVELake View44Completed13 daysMobile DeviceCity 311
8/6/20266141 S MAPLEWOOD AVEChicago Lawn16Completed6 daysPhone CallCity 311
8/6/20266720 S CORNELL AVESouth Shore5Completed12 daysPhone CallCity 311
8/6/20263016 N NEW ENGLAND AVEMontclare36Completed13 daysInternetCity 311
8/6/20266141 S MAPLEWOOD AVEChicago Lawn16Completed6 daysPhone CallCity 311
8/6/20266965 N PAULINA STRogers Park49Completed12 daysMobile DeviceCity 311
8/6/20265549 S WASHTENAW AVEGage Park15Completed14 daysInternetCity 311
8/6/202611756 S CAMPBELL AVEMorgan Park19Completed6 daysInternetCity 311
8/6/20266216 W GRAND AVEBelmont Cragin36Completed6 daysMobile DeviceCity 311
8/6/20264723 S WOOD STNew City15Completed14 daysMobile DeviceCity 311
8/6/20265242 S MONITOR AVEGarfield Ridge23Completed10 daysInternetCity 311
8/6/20262856 W EASTWOOD AVEAlbany Park40Completed13 daysMobile DeviceCity 311
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