RatCity — Chicago Rat and Rodent Sightings Map

RatCity

27 locations in the last day (28 reports) · Last sighting 19 hours ago

📰 Blog
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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.

📰 This week’s rat recap

Weekly Rat Trends — Oct 26–Nov 1, 2026

  • 🐀 1,021 new reports — down 9% from the week before
  • 👑 Lake View is Rat King with 70 reports
  • 📈 Biggest jump: Lincoln Park, up 15 from last week
  • 🏙️ The city took 11.2 days on average to resolve a complaint
Read the full recap →

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

59,238 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/29/20261015 E 60TH STWoodlawn5Completed8 daysInternetCity 311
9/29/20262549 N CLARK STLincoln Park43Completed8 daysAlderman's OfficeCity 311
9/29/20262927 S WELLS STArmour Square11Completed15 daysPhone CallCity 311
9/29/20265025 S LAWLER AVEGarfield Ridge23Completed14 daysPhone CallCity 311
9/29/20265939 S PAULINA STWest Englewood15Completed16 daysPhone CallCity 311
9/29/2026236 S GREEN STNear West Side34Completed2 daysPhone CallCity 311
9/29/20263310 N SACRAMENTO AVEAvondale33Completed16 daysPhone CallCity 311
9/29/20262936 N KILPATRICK AVEBelmont Cragin31Completed15 daysAlderman's OfficeCity 311
9/29/20266145 W PETERSON AVENorwood Park45Completed15 daysMobile DeviceCity 311
9/29/20265019 S LAWLER AVEGarfield Ridge23Completed14 daysInternetCity 311
9/29/20263736 W 61ST STWest Lawn23Completed3 daysAlderman's OfficeCity 311
9/29/2026310 W DICKENS AVELincoln Park43Completed14 daysPhone CallCity 311
9/29/20266725 S KOSTNER AVEWest Lawn23Completed14 daysAlderman's OfficeCity 311
9/29/20263730 N WHIPPLE STIrving Park35Completed8 daysInternetCity 311
9/29/20261322 W HENDERSON STLake View44Completed14 daysPhone CallCity 311
9/29/20263742 N PACIFIC AVEDunning38Completed15 daysPhone CallCity 311
9/29/20262640 S PRINCETON AVEArmour Square11Completed15 daysPhone CallCity 311
9/29/20266517 N ARTESIANWest Ridge50Completed10 daysSalesforce Mobile AppCity 311
9/29/20268414 S CRANDON AVESouth Chicago8Completed16 daysAlderman's OfficeCity 311
9/29/20266507 N BELL AVEWest Ridge50Completed10 daysInternetCity 311
9/29/20262537 W 107TH STMorgan Park19Completed3 daysPhone CallCity 311
9/29/20264718 S KARLOV AVEArcher Heights14Completed14 daysAlderman's OfficeCity 311
9/29/20263124 S MAY STBridgeport11Completed15 daysAlderman's OfficeCity 311
9/29/20263643 W 56TH STWest Elsdon23Completed14 daysPhone CallCity 311
9/29/20262748 N RACINE AVELincoln Park32Completed15 daysMobile DeviceCity 311
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