RatCity — Chicago Rat and Rodent Sightings Map

RatCity

12 locations in the last day (13 reports) · Last sighting 20 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 — 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

59,238 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/27/20267140 S CORNELL AVESouth Shore7Completed12 daysPhone CallCity 311
9/27/20268510 S MANISTEE AVESouth Chicago7Completed12 daysPhone CallCity 311
9/27/20265118 S NEWCASTLE AVEGarfield Ridge23Completed16 daysMobile DeviceCity 311
9/27/20261048 W 112TH STMorgan Park21Completed16 daysPhone CallCity 311
9/27/20261745 N CLYBOURN AVELincoln Park43Completed10 daysMobile DeviceCity 311
9/27/20264140 W FIFTH AVEWest Garfield Park24Completed16 daysInternetCity 311
9/27/202610247 S EMERALD AVEWashington Heights21Completed16 daysPhone CallCity 311
9/27/20264100 N MOZART STIrving Park33Completed11 daysInternetCity 311
9/27/20263104 N NAGLE AVEBelmont Cragin36Completed12 daysMobile DeviceCity 311
9/27/2026958 W CULLERTON STLower West Side25Completed9 daysPhone CallCity 311
9/27/20266643 N FRANCISCO AVEWest Ridge50Completed12 daysMobile DeviceCity 311
9/27/20261958 N MAUD AVELincoln Park43Completed10 daysMobile DeviceCity 311
9/27/2026313 W WISCONSIN STLincoln Park43Completed10 daysMobile DeviceCity 311
9/27/20262623 W CORTLAND STLogan Square1Completed12 daysInternetCity 311
9/27/20262555 N CLARK STLincoln Park43Completed10 daysMobile DeviceCity 311
9/27/20269000 S HOUSTON AVESouth Chicago10Completed16 daysMobile DeviceCity 311
9/27/20264947 W CORTEZ STAustin37Completed11 daysPhone CallCity 311
9/27/20262212 W EASTWOOD AVELincoln Square47Completed16 daysInternetCity 311
9/27/20263834 N DRAKE AVEIrving Park35Completed10 daysInternetCity 311
9/27/20265404 N ARTESIAN AVELincoln Square40Completed11 daysPhone CallCity 311
9/27/20265142 N NEWCASTLE AVENorwood Park41Completed10 daysPhone CallCity 311
9/27/20263248 N LONG AVEPortage Park30Completed12 daysInternetCity 311
9/27/20266126 S BISHOP STWest Englewood16Completed16 daysInternetCity 311
9/27/20262730 W ADAMS STEast Garfield Park27Completed12 daysMobile DeviceCity 311
9/27/20266224 S GREENWOOD AVEWoodlawn20Completed10 daysMobile DeviceCity 311
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