RatCity — Chicago Rat and Rodent Sightings Map

RatCity

3974 locations in the last 30 days (4152 reports) · Last sighting 21 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

60,312 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/22/20261511 W LAWRENCE AVEUptown47Completed13 daysMobile DeviceCity 311
9/25/20261159 W FARWELL AVERogers Park49Completed13 daysMobile DeviceCity 311
8/28/20261729 N KEYSTONE AVEHumboldt Park26Completed13 daysPhone CallCity 311
10/20/20263643 W 70TH STWest Lawn23Completed13 daysAlderman's OfficeCity 311
9/9/20266834 W 64TH STClearing13Completed13 daysInternetCity 311
9/18/20255634 S NASHVILLE AVEGarfield Ridge13Completed13 daysInternetCity 311
7/25/20264530 N MOZART STAlbany Park33Completed13 daysInternetCity 311
9/25/20263900 N SHERIDAN RDLake View46Completed13 daysInternetCity 311
7/31/20252613 W THOMAS STWest Town36Completed13 daysPhone CallCity 311
9/30/20261916 W FARRAGUT AVELincoln Square40Completed13 daysMobile DeviceCity 311
9/25/20265445 N CALIFORNIA AVELincoln Square40Completed13 daysInternetCity 311
9/22/20264903 W RACE AVEAustin37Completed13 daysPhone CallCity 311
8/4/20264400 N ASHLAND AVEUptown47Completed13 daysInternetCity 311
9/9/20265839 S NORDICA AVEGarfield Ridge13Completed13 daysInternetCity 311
10/7/20263839 W GRAND AVEHumboldt Park36Completed13 daysMobile DeviceCity 311
8/7/20264411 N GREENVIEW AVEUptown47Completed13 daysInternetCity 311
8/6/2025822 W LILL AVELincoln Park43Completed13 daysInternetCity 311
7/31/20264501 S WALLACE STNew City15Completed13 daysAlderman's OfficeCity 311
8/27/20264240 N TROY STIrving Park33Completed13 daysMobile DeviceCity 311
8/13/20252252 N KILDARE AVEHermosa35Completed13 daysAlderman's OfficeCity 311
7/22/20262542 N ASHLAND AVELincoln Park32Completed13 daysPhone CallCity 311
10/2/20252444 N LARAMIE AVEBelmont Cragin31Completed13 daysMobile DeviceCity 311
9/30/20266159 N LEAVITTWest Ridge40Completed13 daysSalesforce Mobile AppCity 311
10/27/20265659 W PATTERSON AVEPortage Park38Completed13 daysPhone CallCity 311
8/28/20251736 W GREGORY STEdgewater40Completed13 daysInternetCity 311
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