RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4060 locations in the last 30 days (4240 reports) · Last sighting 2 days 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 — 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

59,447 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/23/20255601 S NORMANDY AVEGarfield Ridge13Completed6 daysInternetCity 311
8/7/20268519 S BUFFALO AVESouth Chicago10Completed6 daysInternetCity 311
8/8/20253912 W CORTLAND STHermosa26Completed6 daysMobile DeviceCity 311
7/14/20265707 S ARCHER AVEGarfield Ridge23Completed6 daysPhone CallCity 311
10/23/2025423 W ARMITAGE AVELincoln Park43Completed6 daysPhone CallCity 311
11/7/2025922 N OAKLEY AVEWest Town36Completed6 daysMobile DeviceCity 311
9/25/20254702 N KELSO AVEAlbany Park39Completed6 daysInternetCity 311
8/1/20255672 N NEVA AVENorwood Park41Completed6 daysInternetCity 311
9/23/20256300 W CORNELIA AVEDunning30Completed6 daysAlderman's OfficeCity 311
9/25/20257227 S CALIFORNIA AVEChicago Lawn18Completed6 daysPhone CallCity 311
7/1/20262537 W BRYN MAWR AVELincoln Square40Completed6 daysInternetCity 311
10/4/202510906 S EGGLESTON AVERoseland21Completed6 daysPhone CallCity 311
5/13/20264215 W FULLERTON AVEHermosa31Completed6 daysAlderman's OfficeCity 311
7/3/20264511 W MONROE STWest Garfield Park28Completed6 daysInternetCity 311
7/3/20264513 W MONROE STWest Garfield Park28Completed6 daysInternetCity 311
6/25/20261100 W OAKDALE AVELake View44Completed6 daysPhone CallCity 311
8/12/20263730 N HERMITAGE AVELake View47Completed6 daysPhone CallCity 311
7/1/20262437 W FARRAGUT AVELincoln Square40Completed6 daysPhone CallCity 311
8/8/20251654 N TALMAN AVEWest Town26Completed6 daysPhone CallCity 311
6/4/20262831 N HARDING AVEAvondale31Completed6 daysInternetCity 311
7/9/20264423 N MOZART STAlbany Park33Completed6 daysInternetCity 311
6/4/20264921 W SCHUBERT AVEBelmont Cragin31Completed6 daysAlderman's OfficeCity 311
2/28/20263053 N LECLAIRE AVEBelmont Cragin31Completed6 daysMobile DeviceCity 311
8/1/20256018 N DAMEN AVEWest Ridge40Completed6 daysInternetCity 311
7/7/20262720 W JEROME STWest Ridge50Completed6 daysMobile DeviceCity 311
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