RatCity — Chicago Rat and Rodent Sightings Map

RatCity

51 locations in the last day (52 reports) · Last sighting 17 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 — 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

59,238 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/2/20264331 N BERNARD STIrving Park33Completed13 daysMobile DeviceCity 311
10/2/20267110 S VERNON AVEGreater Grand Crossing6Completed14 daysPhone CallCity 311
10/2/20264326 W THOMAS STHumboldt Park37Completed14 daysMobile DeviceCity 311
10/2/20261951 N HALSTED STLincoln Park43Completed13 daysMobile DeviceCity 311
10/2/2026369 N AVERS AVEWest Garfield Park37Completed14 daysPhone CallCity 311
10/2/20263521 W 82ND PLAshburn18Completed17 daysPhone CallCity 311
10/2/202610800 S HAMLIN AVEMount Greenwood19Completed17 daysPhone CallCity 311
10/2/20264722 W MONROE STAustin28Completed13 daysPhone CallCity 311
10/2/20263826 W GLADYS AVEWest Garfield Park28Completed13 daysPhone CallCity 311
10/2/20264609 S EMERALD AVENew City15Completed13 daysPhone CallCity 311
10/2/20266707 S CHAPPEL AVESouth Shore5Completed12 daysInternetCity 311
10/2/20264047 N MELVINA AVEPortage Park38Completed14 daysPhone CallCity 311
10/2/20261228 W DIVERSEY AVELake View32Completed18 daysPhone CallCity 311
10/2/20263725 W 83RD PLAshburn18Completed11 daysMobile DeviceCity 311
10/2/20262157 N DAMEN AVELogan Square32Completed18 daysMobile DeviceCity 311
10/2/20266200 W BELMONT AVEDunning30Completed14 daysPhone CallCity 311
10/2/20269853 S COMMERCIAL AVESouth Deering10Completed11 daysAlderman's OfficeCity 311
10/2/20264828 N NEW ENGLAND AVENorwood Park41Completed6 daysInternetCity 311
10/2/20262305 N MAJOR AVEBelmont Cragin36Completed13 daysPhone CallCity 311
10/2/20262055 W BALMORAL AVELincoln Square40Completed12 daysInternetCity 311
10/2/20264422 N PARKSIDE AVEPortage Park38Completed12 daysInternetCity 311
10/2/20264732 S DR MARTIN LUTHER KING JR DRGrand Boulevard3Completed18 daysAlderman's OfficeCity 311
10/2/20261834 W WASHINGTON BLVDNear West Side27Completed7 daysPhone CallCity 311
10/2/2026917 N LEAMINGTON AVEAustin37Completed14 daysPhone CallCity 311
10/2/2026808 N LAKE SHORE DRNear North Side2Completed4 daysInternetCity 311
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