RatCity — Chicago Rat and Rodent Sightings Map

RatCity

103 locations in the last day (107 reports) · Last sighting 13 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
10/9/20263039 W AINSLIE STAlbany Park33Completed13 daysPhone CallCity 311
10/9/20262545 N SEMINARY AVELincoln Park43Completed13 daysInternetCity 311
10/9/2026546 E 46TH STGrand Boulevard3Completed11 daysInternetCity 311
10/9/20264552 S FORRESTVILLE AVEGrand Boulevard3Completed11 daysInternetCity 311
10/9/20265310 S WABASH AVEWashington Park3Completed11 daysPhone CallCity 311
10/9/20266900 S ROCKWELL STChicago Lawn17Completed10 daysPhone CallCity 311
10/9/20263019 N GRESHAM AVEAvondale35Completed17 daysMobile DeviceCity 311
10/9/20263807 N HAMLIN AVEIrving Park30Completed14 daysInternetCity 311
10/9/20266433 S MORGAN STEnglewood16Completed12 daysAlderman's OfficeCity 311
10/9/20266433 S MORGAN STEnglewood16Completed12 daysPhone CallCity 311
10/9/20268441 S HERMITAGE AVEAuburn Gresham18Completed10 daysPhone CallCity 311
10/9/20268449 S HERMITAGE AVEAuburn Gresham18Completed10 daysPhone CallCity 311
10/9/20261259 W 111TH STMorgan Park21Completed13 daysPhone CallCity 311
10/9/20263054 N RACINE AVELake View32Completed7 daysPhone CallCity 311
10/9/20262332 W CORTEZ STWest Town1Completed17 daysMobile DeviceCity 311
10/9/20268400 S HERMITAGE AVEAuburn Gresham18Completed10 daysPhone CallCity 311
10/9/20262052 N CLEVELANDLincoln Park43Completed13 daysSalesforce Mobile AppCity 311
10/9/20266937 S PULASKI RDWest Lawn23Completed13 daysMobile DeviceCity 311
10/9/20268453 S HERMITAGE AVEAuburn Gresham18Completed10 daysPhone CallCity 311
10/9/20268463 S HERMITAGE AVEAuburn Gresham18Completed10 daysPhone CallCity 311
10/9/202612937 S BALTIMORE AVEHegewisch10Completed12 daysMobile DeviceCity 311
10/9/20266913 W FARRAGUT AVENorwood Park41Completed12 daysInternetCity 311
10/9/20263858 N SAWYER AVEIrving Park33Completed13 daysPhone CallCity 311
10/9/20262249 W ARTHUR AVEWest Ridge50Completed13 daysMobile DeviceCity 311
10/9/20261835 N LINDER AVEAustin37Completed12 daysMobile DeviceCity 311
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