RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4138 locations in the last 30 days (4324 reports) · Last sighting 21 hours ago

📰 Blog
DayWeek30 DaysYear
Loading map…

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
5/15/20263837 W 86TH PLAshburn18Completed4 daysInternetCity 311
5/15/20268820 S LAFLIN STAuburn Gresham21Completed5 daysInternetCity 311
5/15/20262620 N NORDICA AVEMontclare29Completed3 daysInternetCity 311
5/15/20261043 N WINCHESTER AVEWest Town1Completed5 daysInternetCity 311
5/15/20262624 S PRINCETON AVEArmour Square11Completed3 daysAlderman's OfficeCity 311
5/15/20262624 S PRINCETON AVEArmour Square11Completed3 daysPhone CallCity 311
5/15/20267149 S EUCLID AVESouth Shore5Completed3 daysPhone CallCity 311
5/15/20261303 W WELLINGTON AVELake View32Completed5 daysPhone CallCity 311
5/15/20267742 S EAST END AVESouth Shore8Completed3 daysPhone CallCity 311
5/15/20268259 S BURLEY AVESouth Chicago7Completed3 daysPhone CallCity 311
5/15/20268047 S STEWART AVEChatham6Completed7 daysPhone CallCity 311
5/15/20265321 N LATROBE AVEJefferson Park45Completed5 daysMobile DeviceCity 311
5/15/20268041 S STEWART AVEChatham6Completed5 daysPhone CallCity 311
5/15/20262447 N LOWELL AVEHermosa31Completed5 daysInternetCity 311
5/15/20262751 S ARCHER AVEBridgeport11Completed3 daysAlderman's OfficeCity 311
5/15/20262721 S QUINN STBridgeport11Completed3 daysAlderman's OfficeCity 311
5/15/20261142 N KEDVALE AVEHumboldt Park37Completed3 daysMobile DeviceCity 311
5/15/20262720 S QUINN STBridgeport11Completed3 daysPhone CallCity 311
5/15/20262455 S ST LOUIS AVESouth Lawndale22Completed3 daysInternetCity 311
5/15/20266448 S DREXEL AVEWoodlawn20Completed4 daysPhone CallCity 311
5/15/20265951 S LAFLIN STWest Englewood16Completed3 daysPhone CallCity 311
5/15/20265066 N WOLCOTT AVELincoln Square40Completed4 daysMobile DeviceCity 311
5/15/20265614 W GRACE STPortage Park38Completed5 daysPhone CallCity 311
5/15/20263086 S LYMAN STBridgeport11Completed3 daysPhone CallCity 311
5/15/20262837 W SHERWIN AVEWest Ridge50Completed4 daysPhone CallCity 311
Page 1081 of 2,378
PreviousNext