RatCity — Chicago Rat and Rodent Sightings Map

RatCity

59 locations in the last day (60 reports) · Last sighting 16 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
10/4/20262815 N MONT CLARE AVEMontclare29Completed15 daysInternetCity 311
10/4/20262034 W BRADLEY PLNorth Center47Completed15 daysMobile DeviceCity 311
10/4/20264353 W FLOURNOY STWest Garfield Park24Completed12 daysInternetCity 311
10/4/20261215 E 53RD STHyde Park5Completed10 daysMobile DeviceCity 311
10/4/20265200 N LEAVITT STLincoln Square40Completed12 daysPhone CallCity 311
10/4/20264758 S KENNETH AVEArcher Heights14Completed15 daysInternetCity 311
10/4/202612112 S LAFAYETTE AVEWest Pullman9Completed16 daysInternetCity 311
10/4/20267340 N HARLEM AVEEdison Park41Completed4 daysPhone CallCity 311
10/4/20266988 N TONTY AVEForest Glen45Completed16 daysInternetCity 311
10/4/20261633 W CATALPA AVEEdgewater40Completed12 daysMobile DeviceCity 311
10/4/20264405 N GREENVIEW AVEUptown47Completed15 daysMobile DeviceCity 311
10/4/20266932 S WOLCOTT AVEWest Englewood17Completed10 daysInternetCity 311
10/4/20266934 S WOLCOTT AVEWest Englewood17Completed10 daysInternetCity 311
10/4/202611045 S ARTESIAN AVEMorgan Park19Completed15 daysInternetCity 311
10/4/20264039 N SACRAMENTO AVEIrving Park33Completed16 daysInternetCity 311
10/4/20261312 W LELAND AVEUptown46Completed15 daysInternetCity 311
10/4/20265155 N NAGLE AVEJefferson Park41Completed4 daysMobile DeviceCity 311
10/4/20262300 W LUNT AVEWest Ridge50Completed11 daysMobile DeviceCity 311
10/4/20265640 S HARPER AVEHyde Park5Completed10 daysMobile DeviceCity 311
10/4/20263755 W ADDISON STAvondale30Completed17 daysPhone CallCity 311
10/4/20262817 N TALMAN AVEAvondale35Completed16 daysPhone CallCity 311
10/4/20263629 N OCTAVIA AVEDunning38Completed12 daysPhone CallCity 311
10/4/20262618 W EVERGREEN AVEWest Town26Completed12 daysPhone CallCity 311
10/4/20263505 W MONTROSE AVEIrving Park33Completed16 daysMobile DeviceCity 311
10/4/20266341 W SCHOOL STDunning30Completed12 daysMobile DeviceCity 311
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