RatCity — Chicago Rat and Rodent Sightings Map

RatCity

38 locations in the last day (39 reports) · Last sighting 18 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
9/30/202610314 S MILLARD AVEMount Greenwood19Completed13 daysPhone CallCity 311
9/30/20263406 W BEACH AVEHumboldt Park26Completed16 daysMobile DeviceCity 311
9/30/20261616 N SPAULDING AVEHumboldt Park26Completed16 daysInternetCity 311
9/30/20262414 W WINONA STLincoln Square40Completed13 daysInternetCity 311
9/30/202610321 S LOWE AVERoseland21Completed16 daysInternetCity 311
9/30/20267218 W BRYN MAWR AVENorwood Park41Completed1 dayPhone CallCity 311
9/30/20267214 W BRYN MAWR AVENorwood Park41Completed1 dayPhone CallCity 311
9/30/20265122 S LINDER AVEGarfield Ridge23Completed13 daysPhone CallCity 311
9/30/20265400 S KARLOV AVEWest Elsdon23Completed13 daysPhone CallCity 311
9/30/20263426 W CORTLAND STLogan Square26Completed16 daysPhone CallCity 311
9/30/20262209 W HIGHLAND AVEWest Ridge50Completed15 daysPhone CallCity 311
9/30/2026745 W WRIGHTWOOD AVELincoln Park43Completed7 daysMobile DeviceCity 311
9/30/20269816 S EMERALD AVEWashington Heights21Completed13 daysPhone CallCity 311
9/30/202610516 S EGGLESTON AVERoseland21Completed6 daysPhone CallCity 311
9/30/20269043 S ADA STWashington Heights21Completed13 daysPhone CallCity 311
9/30/20264148 N MONITOR AVEPortage Park38Completed14 daysPhone CallCity 311
9/30/20265142 S SACRAMENTO AVEGage Park14Completed1 dayPhone CallCity 311
9/30/20265102 W CULLOM AVEPortage Park45Completed14 daysPhone CallCity 311
9/30/20264746 S HAMLIN AVEArcher Heights14Completed1 dayPhone CallCity 311
9/30/20268438 S CARPENTER STAuburn Gresham17Completed1 dayPhone CallCity 311
9/30/20262837 W SUMMERDALE AVELincoln Square39Completed1 dayPhone CallCity 311
9/30/20266183 N CALDWELL AVEForest Glen39Completed1 dayPhone CallCity 311
9/30/20263100 N KILBOURN AVEHermosa31Completed16 daysPhone CallCity 311
9/30/20262735 N LINCOLN AVELincoln Park43Completed15 daysMobile DeviceCity 311
9/30/20262425 N ORCHARD STLincoln Park43Completed15 daysInternetCity 311
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