RatCity — Chicago Rat and Rodent Sightings Map

RatCity

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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

59,354 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/10/20261119 W 17TH STLower West Side25Completed12 daysPhone CallCity 311
9/10/20261122 W 17TH STLower West Side25Completed12 daysPhone CallCity 311
9/10/20261829 N WILMOT AVELogan Square32Completed7 daysPhone CallCity 311
9/10/20264801 N CENTRAL AVEJefferson Park45Completed11 daysInternetCity 311
9/10/20266206 N FRANCISCO AVEWest Ridge50Completed14 daysPhone CallCity 311
9/10/2026918 N LARAMIE AVEAustin37Canceled0 daysPhone CallCity 311
9/10/20263612 N SACRAMENTO AVEIrving Park35Completed14 daysPhone CallCity 311
9/10/20263442 S UNION AVEBridgeport11Completed8 daysPhone CallCity 311
9/10/20265003 N WINCHESTER AVELincoln Square40Completed13 daysInternetCity 311
9/10/20261943 W GREENLEAF AVERogers Park49Completed11 daysInternetCity 311
9/10/20265140 N BERNARD STNorth Park39Completed8 daysInternetCity 311
9/10/20262720 N LAWNDALE AVELogan Square35Completed12 daysPhone CallCity 311
9/10/2026255 W SWANN STFuller Park20Completed14 daysPhone CallCity 311
9/10/20261519 N MOHAWK STNear North Side2Completed5 daysInternetCity 311
9/10/20261223 N HOYNE AVEWest Town1Completed12 daysMobile DeviceCity 311
9/10/2026855 W 73RD STEnglewood17Completed13 daysPhone CallCity 311
9/10/20261445 W 110TH STMorgan Park21Completed13 daysPhone CallCity 311
9/10/2026748 E 104TH STPullman9Completed11 daysPhone CallCity 311
9/10/2026621 W CORNELIA AVELake View46Completed11 daysMobile DeviceCity 311
9/10/20266036 N KNOX AVEForest Glen39Completed12 daysPhone CallCity 311
9/10/20264005 N MEADE AVEPortage Park38Completed12 daysInternetCity 311
9/10/2026739 E 91ST PLChatham8Completed7 daysPhone CallCity 311
9/10/202610323 S ARTESIAN AVEBeverly19Completed13 daysPhone CallCity 311
9/10/20264332 N KOSTNER AVEIrving Park39Completed14 daysInternetCity 311
9/10/2026515 W BELDEN AVELincoln Park43Completed11 daysInternetCity 311
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