RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4216 locations in the last 30 days (4400 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.

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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

59,712 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/9/20267121 S ST LAWRENCE AVEGreater Grand Crossing6Completed1 dayPhone CallCity 311
4/9/20267123 S ST LAWRENCE AVEGreater Grand Crossing6Completed1 dayPhone CallCity 311
4/9/20265849 N WASHTENAW AVEWest Ridge40Completed1 dayPhone CallCity 311
4/9/20261523 N KOLIN AVEHumboldt Park36Completed1 dayInternetCity 311
4/9/20265255 S NORDICA AVEGarfield Ridge23Completed1 dayPhone CallCity 311
4/9/20261248 N GREENVIEW AVEWest Town1Completed1 dayInternetCity 311
4/9/20261724 N ARTESIAN AVEWest Town1Completed1 dayAlderman's OfficeCity 311
4/9/20261501 W GRANVILLE AVEEdgewater48Completed1 dayMobile DeviceCity 311
4/9/20265509 N CHRISTIANA AVENorth Park39Completed1 dayMobile DeviceCity 311
4/9/20265005 W CHICAGO AVEAustin37Completed1 dayPhone CallCity 311
4/9/202610018 S PRINCETON AVERoseland9Completed1 dayPhone CallCity 311
4/9/2026545 N PINE AVEAustin37Completed1 dayPhone CallCity 311
4/9/20265708 W 64TH PLClearing13Completed1 dayInternetCity 311
4/9/20266144 N CAMPBELL AVEWest Ridge40Completed1 dayPhone CallCity 311
4/9/20266047 S RICHMOND STChicago Lawn15Completed1 dayInternetCity 311
4/9/20262301 W 72ND STChicago Lawn18Completed1 dayAlderman's OfficeCity 311
4/9/20261715 S CLINTON STLower West Side25Completed1 dayInternetCity 311
4/9/20262426 W MCLEAN AVELogan Square1Completed1 dayInternetCity 311
4/9/20261439 W CATALPA AVEEdgewater48Completed1 dayInternetCity 311
4/9/20266659 W 64TH PLClearing13Completed1 dayMobile DeviceCity 311
4/9/20262940 W IRVING PARK RDIrving Park33Completed4 daysPhone CallCity 311
4/9/20261714 W 21ST STLower West Side25Completed1 dayAlderman's OfficeCity 311
4/9/20262733 S SHIELDS AVEArmour Square11Completed1 dayMobile DeviceCity 311
4/9/20264953 W WINONA STForest Glen45Completed4 daysInternetCity 311
4/9/20267758 S DAMEN AVEAuburn Gresham18Completed1 dayAlderman's OfficeCity 311
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