RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4042 locations in the last 30 days (4219 reports) · Last sighting yesterday

📰 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 — Nov 2–Nov 8, 2026

  • 🐀 948 new reports — down 7% from the week before
  • 👑 Lake View is Rat King with 67 reports
  • 📈 Biggest jump: Logan Square, up 15 from last week
  • 🏙️ The city took 9.7 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

60,097 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/3/20263651 S EMERALD AVEBridgeport11Completed10 daysInternetCity 311
8/3/20263115 N CALIFORNIA AVEAvondale35Completed9 daysPhone CallCity 311
8/3/20263248 W HURON STHumboldt Park27Completed17 daysPhone CallCity 311
8/3/20263456 N RUTHERFORD AVEDunning38Completed18 daysMobile DeviceCity 311
8/3/20262854 N CLARK STLake View44Completed16 daysPhone CallCity 311
8/3/20264836 S SPRINGFIELD AVEArcher Heights14Completed2 daysAlderman's OfficeCity 311
8/3/20265550 W MONROE STAustin29Completed3 daysAlderman's OfficeCity 311
8/3/20263824 N LEAVITT STNorth Center47Completed11 daysInternetCity 311
8/3/20262643 S KOSTNER AVESouth Lawndale22Completed10 daysPhone CallCity 311
8/3/20263127 N LAWNDALE AVEAvondale35Completed9 daysPhone CallCity 311
8/3/20263530 N OCTAVIA AVEDunning38Completed18 daysInternetCity 311
8/3/20269152 S THROOP STWashington Heights21Completed11 daysInternetCity 311
8/3/20261432 N CLEVELAND AVENear North Side2Completed7 daysInternetCity 311
8/3/20261002 N CENTRAL PARK AVEHumboldt Park27Completed10 daysInternetCity 311
8/3/20263836 S WASHTENAW AVEBrighton Park12Completed11 daysMobile DeviceCity 311
8/3/20261111 N MONTICELLO AVEHumboldt Park36Completed14 daysInternetCity 311
8/3/20264511 W MONROE STWest Garfield Park28Completed3 daysInternetCity 311
8/3/20262048 N CALIFORNIA AVELogan Square1Completed14 daysInternetCity 311
8/3/20263538 N NOTTINGHAM AVEDunning38Completed18 daysMobile DeviceCity 311
8/3/20265137 S WABASH AVEWashington Park3Completed7 daysPhone CallCity 311
8/3/20268016 S SACRAMENTO AVEAshburn18Completed11 daysInternetCity 311
8/3/20262440 N LOREL AVEBelmont Cragin31Completed16 daysMobile DeviceCity 311
8/3/20261059 E 80TH STChatham8Completed16 daysAlderman's OfficeCity 311
8/3/20261706 N CLYBOURN AVELincoln Park2Completed7 daysInternetCity 311
8/3/20261764 N KINGSBURY STLincoln Park32Completed10 daysMobile DeviceCity 311
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