RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4149 locations in the last 30 days (4328 reports) · Last sighting 11 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.

32080fewer → more

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
11/3/20254803 S WABASH AVEGrand Boulevard3Completed2 daysPhone CallCity 311
5/4/20262942 N WISNER AVEAvondale35Completed2 daysInternetCity 311
3/7/20261926 S RACINE AVELower West Side25Completed2 daysMobile DeviceCity 311
3/31/20266500S S RACINE AVEWest Englewood17Completed2 daysPhone CallCity 311
10/27/20251716 N LAWNDALE AVEHumboldt Park26Completed2 daysAlderman's OfficeCity 311
6/2/2026859 N HERMITAGE AVEWest Town1Completed2 daysMobile DeviceCity 311
4/1/20263600 S EMERALD AVEBridgeport11Completed2 daysPhone CallCity 311
5/24/20262037 W BIRCHWOOD AVERogers Park49Completed2 daysMobile DeviceCity 311
11/4/20256142 N HAMILTON AVEWest Ridge40Completed2 daysInternetCity 311
6/28/20263941 W 64TH STWest Lawn23Completed2 daysAlderman's OfficeCity 311
9/21/20262702 S PRINCETON AVEArmour Square11Completed2 daysPhone CallCity 311
3/9/20262739 W SEIPP STAshburn18Completed2 daysMobile DeviceCity 311
11/17/202510314 S CALUMET AVERoseland9Completed2 daysPhone CallCity 311
6/27/20261716 N LARAMIE AVEAustin37Completed2 daysMobile DeviceCity 311
6/30/20265317 N NEW ENGLAND AVENorwood Park41Completed2 daysPhone CallCity 311
10/19/20267010 S MERRILL AVESouth Shore5Completed2 daysInternetCity 311
10/27/20266677 W RAVEN STNorwood Park41Completed2 daysPhone CallCity 311
2/21/20263108 N OLCOTT AVEDunning29Completed2 daysPhone CallCity 311
6/13/20263543 W BELMONT AVEAvondale35Completed2 daysMobile DeviceCity 311
4/29/20263013 N LUNA AVEBelmont Cragin31Completed2 daysInternetCity 311
4/14/20261732 W SCHOOL STLake View32Completed2 daysInternetCity 311
8/11/202510412 S CAMPBELL AVEBeverly19Canceled2 daysInternetCity 311
6/23/20266478 N NEWLAND AVENorwood Park41Completed2 daysPhone CallCity 311
11/8/20253223 N ORANGE AVEDunning38Completed2 daysPhone CallCity 311
6/15/20263025 N OAKLEY AVENorth Center32Completed2 daysPhone CallCity 311
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