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

59,088 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/12/2026750 N NOBLE STWest Town27Completed11 daysMobile DeviceCity 311
10/12/20262542 N WAYNE AVELincoln Park32Completed10 daysInternetCity 311
10/12/20261714 N SAWYER AVEHumboldt Park26Completed10 daysMobile DeviceCity 311
10/12/20265831 N NORTHWEST HWYNorwood Park41Completed11 daysPhone CallCity 311
10/12/20264612 W 83RD STAshburn18Completed10 daysInternetCity 311
10/12/20266114 N CAMPBELL AVEWest Ridge40Completed14 daysPhone CallCity 311
10/12/20263714 N BELL AVENorth Center47Completed16 daysInternetCity 311
10/12/20266532 N NIXON AVENorwood Park41Completed11 daysPhone CallCity 311
10/12/20268019 S LOOMIS STAuburn Gresham17Completed15 daysPhone CallCity 311
10/12/20261846 N RICHMOND STLogan Square26Completed10 daysInternetCity 311
10/12/20265258 N LAMON AVEForest Glen39Completed14 daysMobile DeviceCity 311
10/12/20263738 N NEW ENGLAND AVEDunning38Completed16 daysPhone CallCity 311
10/12/2026737 W BROMPTON AVELake View46Completed7 daysMobile DeviceCity 311
10/12/20262625 W BELDEN AVELogan Square1Completed14 daysInternetCity 311
10/12/20265938 N HARLEM AVENorwood Park41Completed11 daysMobile DeviceCity 311
10/12/20262446 W THOMAS STWest Town36Completed8 daysMobile DeviceCity 311
10/12/20265510 S CORNELL AVEHyde Park5Completed9 daysInternetCity 311
10/12/20263332 N NAGLE AVEDunning38Completed16 daysMobile DeviceCity 311
10/12/20265616 S MERRIMAC AVEGarfield Ridge13Completed15 daysInternetCity 311
10/12/20264639 S DRAKE AVEBrighton Park12Completed11 daysPhone CallCity 311
10/12/20264247 N WOLCOTT AVENorth Center47Completed15 daysInternetCity 311
10/12/20267846 S WINCHESTER AVEAuburn Gresham17Completed15 daysMobile DeviceCity 311
10/12/20266211 N CICERO AVEForest Glen39Completed14 daysInternetCity 311
10/12/20263911 N KIMBALL AVEIrving Park33Completed15 daysPhone CallCity 311
10/12/20266205 N CICERO AVEForest Glen39Completed14 daysInternetCity 311
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