RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4272 locations in the last 30 days (4460 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

58,726 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/27/20253237 W 83RD STAshburn18Completed2 daysMobile DeviceCity 311
12/27/20259612 S WENTWORTH AVERoseland9Completed2 daysInternetCity 311
12/27/20258357 S CONSTANCE AVEAvalon Park8Completed2 daysInternetCity 311
12/28/20256153 W 63RD STClearing13Completed2 daysMobile DeviceCity 311
12/28/20255227 S KEATING AVEGarfield Ridge23Completed1 dayMobile DeviceCity 311
12/28/202511421 S PARNELL AVERoseland21Completed1 dayMobile DeviceCity 311
12/28/20252412 N LOCKWOOD AVEBelmont Cragin31Completed3 daysInternetCity 311
12/28/20255140 W ALTGELD STBelmont Cragin31Completed3 daysInternetCity 311
12/28/20252814 W 21ST STSouth Lawndale25Completed2 daysInternetCity 311
12/28/20252646 W SUMMERDALE AVELincoln Square40Completed1 dayInternetCity 311
12/28/20254318 S FORRESTVILLE AVEGrand Boulevard3Completed1 dayInternetCity 311
12/28/20251932 N LAWNDALE AVELogan Square26Completed1 dayMobile DeviceCity 311
12/28/20254826 N NEW ENGLAND AVENorwood Park41Completed2 daysInternetCity 311
12/28/20253524 W IRVING PARK RDIrving Park33Completed1 dayMobile DeviceCity 311
12/28/20252043 N AVERS AVELogan Square26Completed3 daysInternetCity 311
12/28/20256148 N MELVINA AVENorwood Park39Completed1 dayInternetCity 311
12/28/20253661 N ELSTON AVEIrving Park33Completed1 dayMobile DeviceCity 311
12/28/20251717 S CLARK STNear South Side3Completed1 dayInternetCity 311
12/28/20251620 S DEARBORN STNear South Side3Completed1 dayInternetCity 311
12/28/202530 W 18TH STNear South Side3Completed1 dayInternetCity 311
12/28/20252741 N MARSHFIELD AVELincoln Park32Completed1 dayInternetCity 311
12/28/20258240 S SOUTH SHORE DRSouth Chicago7Completed1 dayMobile DeviceCity 311
12/28/20256340 W BELMONT AVEDunning30Completed1 dayPhone CallCity 311
12/28/20253056 N RACINE AVELake View32Completed1 dayPhone CallCity 311
12/28/20255118 N LARAMIE AVEJefferson Park45Completed2 daysMobile DeviceCity 311
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