RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4384 locations in the last 30 days (4578 reports) · Last sighting 13 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

59,088 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
1/21/20263350 N WESTERN AVENorth Center47Completed1 dayMobile DeviceCity 311
1/21/20262133 N SOUTHPORT AVELincoln Park2Completed1 dayAlderman's OfficeCity 311
1/21/20263201 W BERWYN AVENorth Park39Completed1 dayAlderman's OfficeCity 311
1/21/20261258 W ARTHUR AVERogers Park49Completed1 dayAlderman's OfficeCity 311
1/21/20261343 W CORNELIA AVELake View44Completed1 dayPhone CallCity 311
1/21/2026500 W MADISON STNear West Side42Completed1 dayMobile DeviceCity 311
1/21/20266572 N SHERIDAN RDRogers Park49Completed1 dayMobile DeviceCity 311
1/21/20261520 S WABASH AVENear South Side3Completed1 dayPhone CallCity 311
1/21/20265905 W 64TH STClearing13Completed1 dayInternetCity 311
1/21/20266551 W CORNELIA AVEDunning38Completed1 dayMobile DeviceCity 311
1/21/20264715 W CORNELIA AVEPortage Park30Completed1 dayInternetCity 311
1/21/20262956 N HALSTED STLake View44Completed1 dayInternetCity 311
1/21/20265831 W LAWRENCE AVEPortage Park45Completed1 dayPhone CallCity 311
1/21/20263612 S NORMAL AVEBridgeport11Completed1 dayPhone CallCity 311
1/21/2026628 N MAY STWest Town27Completed1 dayInternetCity 311
1/21/20267544 S STONY ISLAND AVESouth Shore8Completed1 dayPhone CallCity 311
1/21/20267147 S BENNETT AVESouth Shore5Completed0 daysInternetCity 311
1/21/20261262 N MARION CTWest Town1Completed0 daysInternetCity 311
1/21/2026560 W ARMITAGE AVELincoln Park43Completed0 daysMobile DeviceCity 311
1/21/20266038 S PULASKI RDWest Lawn23Completed0 daysInternetCity 311
1/22/2026419 E 111TH STRoseland9Completed0 daysMobile DeviceCity 311
1/22/20265104 W FLETCHER STBelmont Cragin31Completed1 dayPhone CallCity 311
1/22/20266940 S WABASH AVEGreater Grand Crossing6Completed1 dayInternetCity 311
1/22/20266506 W BELMONT AVEDunning38Completed1 dayPhone CallCity 311
1/22/20263041 S SHIELDS AVEArmour Square11Completed1 dayPhone CallCity 311
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