RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4191 locations in the last 30 days (4371 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

59,882 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/14/20262932 S PRINCETON AVEArmour Square11Completed1 dayInternetCity 311
8/6/20262932 S PRINCETON AVEArmour Square11Completed8 daysMobile DeviceCity 311
10/15/20262932 N SAWYER AVEAvondale35Completed14 daysInternetCity 311
9/25/20262932 N SAWYER AVEAvondale35Completed11 daysInternetCity 311
8/8/20262932 N RICHMOND STAvondale35Completed13 daysInternetCity 311
6/11/20262932 N RICHMOND STAvondale35Completed4 daysInternetCity 311
8/21/20262932 N HAMLIN AVEAvondale31Completed12 daysAlderman's OfficeCity 311
10/29/20262932 N HAMLIN AVEAvondale31Completed11 daysAlderman's OfficeCity 311
10/22/20252931 W LUNT AVEWest Ridge50Completed1 dayPhone CallCity 311
9/25/20252931 W LUNT AVEWest Ridge50Completed8 daysPhone CallCity 311
9/25/20252931 W LUNT AVEWest Ridge50Completed8 daysPhone CallCity 311
5/5/20262931 W JARVIS AVEWest Ridge50Completed2 daysInternetCity 311
8/16/20262931 W JARVIS AVEWest Ridge50Completed10 daysMobile DeviceCity 311
12/16/20252931 W 24TH STSouth Lawndale24Completed1 dayPhone CallCity 311
9/30/20262931 W 24TH BLVDSouth Lawndale24Completed14 daysInternetCity 311
6/16/20262931 W 24TH BLVDSouth Lawndale24Completed2 daysInternetCity 311
9/15/20252931 W 24TH BLVDSouth Lawndale24Completed7 daysInternetCity 311
10/6/20262931 N GRESHAM AVEAvondale35Completed16 daysInternetCity 311
6/18/20262930 W HARRISON STEast Garfield Park27Completed6 daysInternetCity 311
4/18/20262930 W EASTWOOD AVEAlbany Park40Completed3 daysInternetCity 311
11/10/20262930 N WISNER AVEAvondale35Open—InternetCity 311
9/16/20262930 N WISNER AVEAvondale35Completed12 daysInternetCity 311
5/14/20262930 N TALMAN AVEAvondale35Completed5 daysMobile DeviceCity 311
8/15/20262930 N PARKSIDE AVEBelmont Cragin31Completed11 daysMobile DeviceCity 311
8/29/20262930 N NORDICA AVEMontclare29Completed5 daysMobile DeviceCity 311
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