RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4580 locations in the last 30 days (4728 reports) · Last sighting 15 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

55,547 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/11/20256600 W 64TH STClearing13Completed12 daysInternetCity 311
9/11/20253821 N RIDGEWAY AVEIrving Park30Completed11 daysPhone CallCity 311
9/11/20256500 W 64TH STClearing13Completed12 daysInternetCity 311
9/11/20256900 W 64TH STClearing13Completed13 daysInternetCity 311
9/11/20256331 N RIDGE AVEWest Ridge40Completed12 daysInternetCity 311
9/11/20253340 S LOWE AVEBridgeport11Completed8 daysMobile DeviceCity 311
9/11/20255118 W WINDSOR AVEPortage Park45Completed11 daysAlderman's OfficeCity 311
9/11/20255743 N JERSEY AVENorth Park39Completed12 daysInternetCity 311
9/11/20253608 S UNION AVEBridgeport11Completed8 daysAlderman's OfficeCity 311
9/11/20252134 N WAYNE AVELincoln Park2Completed6 daysAlderman's OfficeCity 311
9/11/20258184 S SCOTTSDALE AVEAshburn18Completed13 daysAlderman's OfficeCity 311
9/11/20255017 W MONTANA STBelmont Cragin31Completed11 daysInternetCity 311
9/11/20253301 W 38TH PLBrighton Park12Completed11 daysspot-open311-CHITEXTCity 311
9/11/20252234 N MARMORA AVEBelmont Cragin36Completed7 daysAlderman's OfficeCity 311
9/11/20253600 W DIVERSEY AVEAvondale35Completed8 daysInternetCity 311
9/11/20258625 S KNOX AVEAshburn18Completed13 daysInternetCity 311
9/11/20255843 S FAIRFIELD AVEGage Park15Completed8 daysAlderman's OfficeCity 311
9/11/20255808 S FAIRFIELD AVEGage Park15Completed13 daysAlderman's OfficeCity 311
9/11/20255108 W BELMONT AVEPortage Park31Completed11 daysMobile DeviceCity 311
9/11/20252137 W 72ND PLWest Englewood17Completed11 daysPhone CallCity 311
9/11/20258239 S DR MARTIN LUTHER KING JR DRChatham6Completed12 daysMobile DeviceCity 311
9/11/20254350 N WHIPPLE STIrving Park33Completed8 daysInternetCity 311
9/11/20251850 N LEAVITT STLogan Square32Completed11 daysPhone CallCity 311
9/11/20255749 N JERSEY AVENorth Park39Completed12 daysInternetCity 311
9/11/20255140 W NELSON STBelmont Cragin31Completed11 daysPhone CallCity 311
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