RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4253 locations in the last 30 days (4438 reports) · Last sighting 22 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
6/2/20266610 N NORTHWEST HWYEdison Park41Completed3 daysPhone CallCity 311
6/2/20265509 N MAJOR AVEJefferson Park45Completed2 daysInternetCity 311
6/2/20267027 S WABASH AVEGreater Grand Crossing6Completed1 dayPhone CallCity 311
6/2/20262736 W SHERWIN AVEWest Ridge50Completed2 daysMobile DeviceCity 311
6/2/20262740 W SHERWIN AVEWest Ridge50Completed2 daysInternetCity 311
6/2/20262132 N LINCOLN PARK WESTLincoln Park43Completed3 daysMobile DeviceCity 311
6/2/20262315 N LINCOLN PARK WESTLincoln Park43Completed6 daysMobile DeviceCity 311
6/2/20266333 W 63RD PLClearing13Completed1 dayInternetCity 311
6/2/202610417 S TORRENCE AVESouth Deering10Completed2 daysInternetCity 311
6/2/20263749 W 107TH STMount Greenwood19Completed1 dayMobile DeviceCity 311
6/2/202611154 S VERNON AVERoseland9Completed0 daysInternetCity 311
6/2/20269519 S COMMERCIAL AVESouth Deering10Completed2 daysInternetCity 311
6/2/20261537 N BOSWORTH AVEWest Town1Completed2 daysInternetCity 311
6/1/20264648 W WASHINGTON BLVDAustin28Completed1 dayPhone CallCity 311
6/1/20262024 N KEDZIE AVELogan Square26Completed3 daysInternetCity 311
6/1/20262720 W JEROME STWest Ridge50Completed3 daysMobile DeviceCity 311
6/1/20264030 N CLARENDON AVEUptown46Completed2 daysInternetCity 311
6/1/20264329 W THOMAS STHumboldt Park37Completed3 daysInternetCity 311
6/1/20265320 S NASHVILLE AVEGarfield Ridge23Completed2 daysInternetCity 311
6/1/20262649 S HILLOCK AVEBridgeport11Completed1 dayPhone CallCity 311
6/1/20268303 W IRVING PARK RDDunning38Completed3 daysMobile DeviceCity 311
6/1/20263440 W HIRSCH STHumboldt Park26Completed3 daysInternetCity 311
6/1/20263614 W SHAKESPEARE AVELogan Square35Completed3 daysInternetCity 311
6/1/20262018 S MAY STLower West Side25Completed1 dayInternetCity 311
6/1/20266452 W FOSTER AVENorwood Park41Completed2 daysInternetCity 311
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