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 — Nov 2–Nov 8, 2026

  • 🐀 948 new reports — down 7% from the week before
  • 👑 Lake View is Rat King with 67 reports
  • 📈 Biggest jump: Logan Square, up 15 from last week
  • 🏙️ The city took 9.7 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

59,712 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/2/20262021 W DICKENS AVELogan Square32Completed8 daysInternetCity 311
8/2/202610833 S CEast Side10Completed1 dayMobile DeviceCity 311
8/2/20262107 N MARMORA AVEBelmont Cragin36Completed15 daysMobile DeviceCity 311
8/2/20261500 N LA SALLE STNear North Side2Completed8 daysPhone CallCity 311
8/2/20265614 W WARWICK AVEPortage Park38Completed4 daysMobile DeviceCity 311
8/2/20263752 N CENTRAL AVEPortage Park38Completed16 daysMobile DeviceCity 311
8/2/20263347 N SHEFFIELD AVELake View44Completed5 daysInternetCity 311
8/2/20263528 N OCTAVIA AVEDunning38Completed16 daysPhone CallCity 311
8/2/20265811 N WINTHROP AVEEdgewater48Completed4 daysInternetCity 311
8/2/20266340 N HAMLIN AVENorth Park39Completed12 daysMobile DeviceCity 311
8/2/20264549 W WELLINGTON AVEHermosa31Completed10 daysMobile DeviceCity 311
8/2/20262600 N MONT CLARE AVEMontclare29Completed8 daysInternetCity 311
8/2/20262649 S RIDGEWAY AVESouth Lawndale22Completed9 daysMobile DeviceCity 311
8/2/20265828 W HENDERSON STPortage Park30Completed10 daysInternetCity 311
8/2/20261240 S CHRISTIANA AVENorth Lawndale24Completed8 daysPhone CallCity 311
8/2/2026609 E 42ND STGrand Boulevard4Completed3 daysMobile DeviceCity 311
8/2/20263907 W MADISON STWest Garfield Park28Completed4 daysInternetCity 311
8/2/20263700 N MOZART STIrving Park35Completed10 daysInternetCity 311
8/2/20265700 W SCHOOL STPortage Park30Completed10 daysPhone CallCity 311
8/2/20266449 S CALIFORNIA AVEChicago Lawn16Completed1 dayPhone CallCity 311
8/2/20263006 S ST LOUIS AVESouth Lawndale22Completed9 daysInternetCity 311
8/2/20265136 S RUTHERFORD AVEGarfield Ridge23Completed3 daysInternetCity 311
8/2/20264822 N WOLCOTT AVELincoln Square47Completed12 daysInternetCity 311
8/2/20264912 N WINCHESTER AVELincoln Square47Completed12 daysInternetCity 311
8/2/20262451 N ROCKWELL STLogan Square1Completed12 daysPhone CallCity 311
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