RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4059 locations in the last 30 days (4233 reports) · Last sighting 18 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

60,241 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/11/20262744 W 107TH STBeverly19Completed12 daysInternetCity 311
7/31/20262445 N HAMLIN AVELogan Square35Completed12 daysPhone CallCity 311
9/17/20252613 W THOMAS STWest Town36Completed12 daysPhone CallCity 311
8/1/20256341 N LAKEWOOD AVEEdgewater48Completed12 daysPhone CallCity 311
10/28/20264509 W CONGRESS PKWYWest Garfield Park28Completed12 daysInternetCity 311
9/25/20262452 W GRENSHAW STNear West Side28Completed12 daysMobile DeviceCity 311
8/14/20262235 N MAJOR AVEBelmont Cragin36Completed12 daysInternetCity 311
8/27/20252949 N ASHLAND AVELake View32Completed12 daysInternetCity 311
8/8/20255312 W DRUMMOND PLBelmont Cragin31Completed12 daysPhone CallCity 311
10/3/20255243 N MASON AVEJefferson Park45Completed12 daysPhone CallCity 311
8/2/20252843 N WASHTENAW AVEAvondale35Completed12 daysMobile DeviceCity 311
9/4/20251611 W SUNNYSIDE AVEUptown47Completed12 daysPhone CallCity 311
8/7/20254713 S TRIPP AVEArcher Heights14Completed12 daysPhone CallCity 311
9/3/20256006 S CARPENTER STEnglewood16Completed12 daysMobile DeviceCity 311
10/29/20262702 S HILLOCK AVEBridgeport11Completed12 daysMobile DeviceCity 311
8/9/20262938 N AVERS AVEAvondale31Completed12 daysMobile DeviceCity 311
9/24/20254308 W 59TH STWest Elsdon13Completed12 daysAlderman's OfficeCity 311
9/19/20263057 N CLYBOURN AVENorth Center32Completed12 daysInternetCity 311
9/17/20258755 S KINGSTON AVESouth Chicago7Completed12 daysMobile DeviceCity 311
9/6/20261109 N WOLCOTT AVEWest Town1Completed12 daysMobile DeviceCity 311
9/4/20251739 N ROCKWELL STWest Town1Completed12 daysInternetCity 311
8/22/20256354 W BELMONT AVEDunning36Completed12 daysMobile DeviceCity 311
9/9/20261340 W ARTHUR AVERogers Park49Completed12 daysInternetCity 311
10/14/20263712 N PARIS AVEDunning38Completed12 daysInternetCity 311
10/23/20264720 N MONTICELLO AVEAlbany Park33Completed12 daysMobile DeviceCity 311
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