RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4017 locations in the last 30 days (4190 reports) · Last sighting yesterday

📰 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 — 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

60,241 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/8/20253457 N NORMANDY AVEDunning38Completed12 daysAlderman's OfficeCity 311
10/22/20266316 S HOYNE AVEWest Englewood16Completed12 daysAlderman's OfficeCity 311
9/23/20263438 N NATOMA AVEDunning38Completed12 daysPhone CallCity 311
7/29/20263429 W 38TH STBrighton Park12Completed12 daysPhone CallCity 311
10/22/20266016 W ADDISON STDunning38Completed12 daysInternetCity 311
8/22/2026828 W WAVELAND AVELake View46Completed12 daysMobile DeviceCity 311
8/28/20253107 N HAUSSEN CTAvondale31Completed12 daysMobile DeviceCity 311
9/18/20255920 N AVONDALE AVENorwood Park41Completed12 daysInternetCity 311
9/9/20261246 W ALBION AVERogers Park49Completed12 daysPhone CallCity 311
10/28/20261831 N KARLOV AVEHermosa26Completed12 daysPhone CallCity 311
9/4/20263744 W FULLERTON AVELogan Square35Completed12 daysPhone CallCity 311
9/18/20256339 S LAWLER AVEClearing13Completed12 daysInternetCity 311
7/30/20268611 S PAULINA STAuburn Gresham18Completed12 daysAlderman's OfficeCity 311
9/26/20265123 N WINCHESTER AVELincoln Square40Completed12 daysMobile DeviceCity 311
8/22/202511159 S GREEN STMorgan Park21Completed12 daysPhone CallCity 311
8/28/20265140 N KOLMAR AVEAlbany Park39Completed12 daysMobile DeviceCity 311
9/5/20256009 S NATCHEZ AVEClearing13Completed12 daysAlderman's OfficeCity 311
9/3/20258011 S UNION AVEAuburn Gresham6Completed12 daysPhone CallCity 311
9/6/20264630 N WINTHROP AVEUptown46Completed12 daysInternetCity 311
9/24/20261018 N HARDING AVEHumboldt Park37Completed12 daysInternetCity 311
7/12/20262214 W IRVING PARK RDNorth Center47Completed12 daysMobile DeviceCity 311
8/14/20264201 S MICHIGAN AVEGrand Boulevard3Completed12 daysPhone CallCity 311
8/28/20256024 N LEGETT AVEForest Glen39Completed12 daysPhone CallCity 311
9/10/20257020 N GREENVIEW AVERogers Park49Completed12 daysInternetCity 311
8/28/20253105 N HAUSSEN CTAvondale31Completed12 daysMobile DeviceCity 311
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