RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4278 locations in the last 30 days (4465 reports) · Last sighting 14 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 — Nov 2–Nov 8, 2026

  • 🐀 948 new reports — down 7% from the week before
  • 👑 Lake View is Rat King with 67 reports
  • 📈 Biggest jump: Logan Square, up 15 from last week
  • 🏙️ The city took 9.7 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

59,882 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/2/20263228 W OLIVE AVENorth Park39Completed5 daysInternetCity 311
6/2/2026618 W BARRY AVELake View44Completed2 daysMobile DeviceCity 311
6/2/20262040 W BELLE PLAINE AVENorth Center47Completed2 daysInternetCity 311
6/2/20267425 N CLAREMONT AVEWest Ridge50Completed2 daysInternetCity 311
6/2/20262212 N BURLING STLincoln Park43Completed2 daysInternetCity 311
6/2/2026424 W DIVERSEY PKWYLake View44Completed2 daysInternetCity 311
6/3/20262944 N ALLEN AVEAvondale35Completed1 dayPhone CallCity 311
6/3/20262944 N ALLEN AVEAvondale35Completed1 dayPhone CallCity 311
6/3/20262239 W CORTEZ STWest Town1Completed1 dayInternetCity 311
6/3/20265312 N MASON AVEJefferson Park45Completed5 daysInternetCity 311
6/3/20267030 N BELL AVEWest Ridge50Completed2 daysMobile DeviceCity 311
6/3/20262412 N LOCKWOOD AVEBelmont Cragin31Completed5 daysInternetCity 311
6/3/20265140 W ALTGELD STBelmont Cragin31Completed5 daysInternetCity 311
6/3/2026223 N AUSTIN AVEAustin29Completed5 daysPhone CallCity 311
6/3/20265550 N WAYNE AVEEdgewater48Completed1 dayPhone CallCity 311
6/3/202610903 S HALE AVEMorgan Park19Completed1 dayPhone CallCity 311
6/3/20262206 S LAWNDALE AVESouth Lawndale22Completed2 daysInternetCity 311
6/3/20263142 S PRINCETON AVEArmour Square11Completed0 daysPhone CallCity 311
6/3/20268801 S WALLACE STAuburn Gresham21Completed1 dayPhone CallCity 311
6/3/20265058 W SCHOOL STPortage Park31Completed0 daysPhone CallCity 311
6/3/20263304 W WABANSIA AVEHumboldt Park26Completed2 daysInternetCity 311
6/3/20267351 N HOYNE AVERogers Park49Completed1 dayPhone CallCity 311
6/3/20268935 S MAY STWashington Heights21Completed6 daysPhone CallCity 311
6/3/202610744 S VERNON AVERoseland9Completed1 dayPhone CallCity 311
6/3/20263029 S PARNELL AVEBridgeport11Completed0 daysMobile DeviceCity 311
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