RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4237 locations in the last 30 days (4423 reports) · Last sighting 23 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

59,354 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/22/20268835 S HARPER AVECalumet Heights8Completed5 daysAlderman's OfficeCity 311
5/22/20264100 W OAKDALE AVEAvondale31Completed5 daysAlderman's OfficeCity 311
5/22/20263544 W 78TH STAshburn18Completed5 daysAlderman's OfficeCity 311
5/22/20261515 W HOLLYWOOD AVEEdgewater48Completed5 daysInternetCity 311
5/22/20268219 S SANGAMON STAuburn Gresham17Completed5 daysPhone CallCity 311
5/22/20265219 S KEATING AVEGarfield Ridge23Completed4 daysMobile DeviceCity 311
5/22/20261452 W FLETCHER STLake View32Completed4 daysMobile DeviceCity 311
5/22/20263917 N TRIPP AVEIrving Park30Completed4 daysAlderman's OfficeCity 311
5/22/20263502 W WABANSIA AVEHumboldt Park26Completed5 daysPhone CallCity 311
5/22/20264814 W WABANSIA AVEAustin37Completed4 daysPhone CallCity 311
5/22/20266124 W ROSCOE STDunning30Completed4 daysMobile DeviceCity 311
5/22/20262218 W CORTEZ STWest Town1Completed4 daysInternetCity 311
5/22/20265231 W ROSCOE STPortage Park31Completed5 daysPhone CallCity 311
5/22/20266310 W HENDERSON STDunning30Completed4 daysPhone CallCity 311
5/22/20261026 N MOZART STWest Town26Completed5 daysAlderman's OfficeCity 311
5/22/20266518 S KENNETH AVEWest Lawn13Completed4 daysInternetCity 311
5/22/2026429 W 37TH STBridgeport11Completed5 daysAlderman's OfficeCity 311
5/22/20264214 S LOWE AVENew City11Completed4 daysPhone CallCity 311
5/22/20266349 S WASHTENAW AVEChicago Lawn16Completed5 daysAlderman's OfficeCity 311
5/22/20262105 N LARRABEE STLincoln Park43Completed6 daysPhone CallCity 311
5/22/20263350 N NARRAGANSETT AVEDunning36Completed6 daysMobile DeviceCity 311
5/22/20264310 S EMERALD AVENew City11Completed4 daysPhone CallCity 311
5/22/20262331 N ELSTON CTLogan Square32Completed4 daysAlderman's OfficeCity 311
5/22/20263543 N ORIOLE AVEDunning38Completed4 daysMobile DeviceCity 311
5/22/20261401 W HIGHLAND AVEEdgewater48Completed5 daysPhone CallCity 311
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