RatCity — Chicago Rat and Rodent Sightings Map

RatCity

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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
9/21/20264540 N CLARENDON AVEUptown46Completed14 daysInternetCity 311
9/21/20262839 N SOUTHPORT AVELake View32Completed14 daysMobile DeviceCity 311
9/21/20265051 W ROSCOE STPortage Park31Completed11 daysInternetCity 311
9/21/202610857 S HAMLIN AVEMount Greenwood19Completed15 daysInternetCity 311
9/21/20264701 S HAMLIN AVEArcher Heights14Completed15 daysAlderman's OfficeCity 311
9/21/20264700 S HAMLIN AVEArcher Heights14Completed15 daysPhone CallCity 311
9/21/20263136 N CHRISTIANA AVEAvondale35Completed11 daysPhone CallCity 311
9/21/2026807 N WABASH AVENear North Side42Completed2 daysInternetCity 311
9/21/20264120 N CAMPBELL AVENorth Center47Completed11 daysInternetCity 311
9/21/20265141 S STATE STWashington Park3Completed10 daysInternetCity 311
9/21/20262114 N HOYNE AVELogan Square32Completed14 daysPhone CallCity 311
9/21/202631 N MENARD AVEAustin29Completed16 daysPhone CallCity 311
9/21/20262900 N NEENAH AVEBelmont Cragin36Completed15 daysPhone CallCity 311
9/21/20264047 N MELVINA AVEPortage Park38Completed14 daysPhone CallCity 311
9/21/20268254 S TROY STAshburn18Completed10 daysPhone CallCity 311
9/21/20264238 S FAIRFIELD AVEBrighton Park12Completed9 daysMobile DeviceCity 311
9/21/20261425 W ESTES AVERogers Park49Completed14 daysPhone CallCity 311
9/21/20266965 N PAULINA STRogers Park49Completed16 daysMobile DeviceCity 311
9/21/20262718 W WINNEMAC AVELincoln Square40Completed14 daysPhone CallCity 311
9/21/20262454 W BRADLEY PLNorth Center47Completed11 daysPhone CallCity 311
9/21/20265830 W ROSCOE STPortage Park30Completed15 daysInternetCity 311
9/21/20265847 S CALIFORNIA AVEGage Park15Completed11 daysPhone CallCity 311
9/21/20263812 W 84TH STAshburn18Completed10 daysAlderman's OfficeCity 311
9/21/20263647 W 113TH STMount Greenwood19Completed15 daysPhone CallCity 311
9/21/20262941 W 71ST STChicago Lawn18Completed10 daysPhone CallCity 311
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