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
9/8/2026253 W SWANN STFuller Park20Completed2 daysPhone CallCity 311
9/8/20261750 N LAWNDALE AVEHumboldt Park26Completed13 daysPhone CallCity 311
9/8/20267514 N DAMEN AVERogers Park49Completed13 daysMobile DeviceCity 311
9/8/20265255 S HARDING AVEWest Elsdon23Completed14 daysInternetCity 311
9/8/20261826 S FAIRFIELD AVENorth Lawndale25Completed9 daysPhone CallCity 311
9/8/20262008 S WABASH AVENear South Side3Completed15 daysMobile DeviceCity 311
9/8/20262434 N BURLING STLincoln Park43Completed13 daysInternetCity 311
9/8/20264407 S WELLS STFuller Park20Completed2 daysInternetCity 311
9/8/20265061 N MERRIMAC AVEJefferson Park45Completed2 daysPhone CallCity 311
9/8/20263732 N OLEANDER AVEDunning38Completed14 daysInternetCity 311
9/8/20263454 W 59TH STGage Park14Completed13 daysAlderman's OfficeCity 311
9/8/20261318 W HOOD AVEEdgewater48Completed1 dayInternetCity 311
9/8/20263259 S EMERALD AVEBridgeport11Completed8 daysAlderman's OfficeCity 311
9/8/20265609 W LE MOYNE STAustin29Completed9 daysInternetCity 311
9/8/20263418 W 60TH STChicago Lawn14Completed14 daysPhone CallCity 311
9/8/20262750 N FAIRFIELD AVELogan Square1Completed10 daysAlderman's OfficeCity 311
9/8/2026705 E 78TH STGreater Grand Crossing6Completed15 daysPhone CallCity 311
9/8/20263316 N NATCHEZ AVEDunning38Completed14 daysPhone CallCity 311
9/8/2026634 W WEBSTER AVELincoln Park43Completed15 daysInternetCity 311
9/8/20263918 N RICHMOND STIrving Park33Completed13 daysInternetCity 311
9/8/20263459 N KOSTNER AVEIrving Park30Completed16 daysMobile DeviceCity 311
9/8/20265650 W MELROSE STPortage Park30Completed16 daysAlderman's OfficeCity 311
9/8/202651 E 98TH STRoseland9Completed13 daysPhone CallCity 311
9/8/20262028 S CALIFORNIA AVESouth Lawndale25Completed9 daysInternetCity 311
9/8/20262820 N MASON AVEBelmont Cragin30Completed16 daysMobile DeviceCity 311
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