RatCity — Chicago Rat and Rodent Sightings Map

RatCity

832 locations in the last week (863 reports) · Last sighting yesterday

📰 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

59,447 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/24/20265316 S MASON AVEGarfield Ridge23Completed10 daysMobile DeviceCity 311
10/24/2026800 S OAKLEY BLVDNear West Side28Completed10 daysMobile DeviceCity 311
10/24/20262521 S HOMAN AVESouth Lawndale25Completed9 daysMobile DeviceCity 311
10/24/20262719 W EVERGREEN AVEWest Town26Completed11 daysPhone CallCity 311
10/24/20269004 S CHAPPEL AVECalumet Heights8Completed6 daysInternetCity 311
10/23/20263924 W 83RD PLAshburn18Completed11 daysPhone CallCity 311
10/23/20265400 S LONG AVEGarfield Ridge23Completed10 daysInternetCity 311
10/23/20265454 W BARRY AVEBelmont Cragin31Completed11 daysInternetCity 311
10/23/20262045 W LAWRENCE AVELincoln Square47Completed14 daysMobile DeviceCity 311
10/23/20261355 E 53RD STHyde Park5Completed12 daysMobile DeviceCity 311
10/23/20265240 N CAMPBELL AVELincoln Square40Completed10 daysInternetCity 311
10/23/20264141 N KEELER AVEIrving Park39Completed5 daysMobile DeviceCity 311
10/23/20262444 W CARMEN AVELincoln Square40Completed14 daysInternetCity 311
10/23/20261130 W DIVERSEY AVELake View44Completed14 daysMobile DeviceCity 311
10/23/2026927 W 32ND STBridgeport11Completed11 daysInternetCity 311
10/23/20263703 N BERNARD STIrving Park35Completed13 daysMobile DeviceCity 311
10/23/20264316 W 18TH STNorth Lawndale24Completed5 daysInternetCity 311
10/23/20264827 N MERRIMAC AVEJefferson Park45Completed10 daysMobile DeviceCity 311
10/23/20261916 W CORTLAND STLogan Square32Completed11 daysInternetCity 311
10/23/20264737 S LECLAIRE AVEGarfield Ridge22Completed12 daysPhone CallCity 311
10/23/20264208 N MASON AVEPortage Park38Completed11 daysMobile DeviceCity 311
10/23/20267057 S CALIFORNIA AVEChicago Lawn17Completed12 daysPhone CallCity 311
10/23/20264846 N KIMBALL AVEAlbany Park33Completed4 daysMobile DeviceCity 311
10/23/2026727 W MONTROSE AVEUptown46Completed11 daysMobile DeviceCity 311
10/23/20266913 W FARRAGUT AVENorwood Park41Completed6 daysInternetCity 311
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