RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4386 locations in the last 30 days (4541 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

53,341 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/4/20262250 W 72ND STChicago Lawn18Completed14 daysPhone CallCity 311
9/4/20261608 S THROOP STLower West Side25Completed4 daysInternetCity 311
9/4/20264511 W MONTANA STHermosa31Completed12 daysAlderman's OfficeCity 311
9/4/20261046 W 31ST PLBridgeport11Completed12 daysInternetCity 311
9/4/20265056 W ADDISON STPortage Park30Completed13 daysInternetCity 311
9/4/20262815 N CLYBOURN AVENorth Center32Completed10 daysMobile DeviceCity 311
9/4/20267940 S CARPENTER STAuburn Gresham17Completed10 daysMobile DeviceCity 311
9/4/20261228 W DIVERSEY AVELake View32Completed12 daysMobile DeviceCity 311
9/4/20263328 S LITUANICA AVEBridgeport11Completed12 daysInternetCity 311
9/4/20263901 W SCHUBERT AVELogan Square35Completed12 daysPhone CallCity 311
9/4/20262401 S LEAVITT STLower West Side25Completed13 daysPhone CallCity 311
9/4/20263705 N SPAULDING AVEIrving Park33Completed7 daysPhone CallCity 311
9/4/20263525 N NEVA AVEDunning38Completed13 daysInternetCity 311
9/4/20267646 S MORGAN STAuburn Gresham17Completed10 daysPhone CallCity 311
9/4/202610650 S ABERDEEN STWashington Heights21Completed13 daysPhone CallCity 311
9/4/20264328 S WOOD STNew City15Completed14 daysInternetCity 311
9/4/20266210 N TRIPP AVEForest Glen39Completed13 daysInternetCity 311
9/3/20264228 W GRAND AVEHumboldt Park36Completed11 daysInternetCity 311
9/3/20263258 N OAKLEY AVENorth Center32Completed12 daysInternetCity 311
9/3/20262412 N LOCKWOOD AVEBelmont Cragin31Completed14 daysInternetCity 311
9/3/20267658 S LAFAYETTE AVEGreater Grand Crossing6Completed5 daysInternetCity 311
9/3/20263534 N NATCHEZ AVEDunning38Completed13 daysMobile DeviceCity 311
9/3/20263436 N HALSTED STLake View44Completed7 daysMobile DeviceCity 311
9/3/20263433 N MARSHFIELD AVELake View47Completed11 daysMobile DeviceCity 311
9/3/20263748 N WOLCOTT AVENorth Center47Completed13 daysInternetCity 311
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