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
9/9/20262109 N MAJOR AVEBelmont Cragin36Completed1 dayPhone CallCity 311
9/9/20266718 W 63RD STClearing13Completed14 daysInternetCity 311
9/9/20266834 W 64TH STClearing13Completed13 daysInternetCity 311
9/9/20263669 N ELSTON AVEIrving Park33Completed2 daysMobile DeviceCity 311
9/9/20267110 W 64TH PLClearing13Completed13 daysInternetCity 311
9/9/20266450 S NEW ENGLAND AVEClearing13Completed13 daysInternetCity 311
9/9/20266332 S KEATING AVEClearing13Completed13 daysInternetCity 311
9/9/20262751 N SEMINARY AVELincoln Park43Completed1 dayPhone CallCity 311
9/9/20266829 S MAPLEWOOD AVEChicago Lawn16Completed15 daysMobile DeviceCity 311
9/9/20266354 S LONG AVEClearing13Completed13 daysInternetCity 311
9/9/20265448 W HIGGINS AVEJefferson Park45Completed14 daysMobile DeviceCity 311
9/9/20265442 S JUSTINE STNew City16Completed15 daysInternetCity 311
9/9/20265142 S SACRAMENTO AVEGage Park14Completed1 dayPhone CallCity 311
9/9/20261818 W SUNNYSIDE AVELincoln Square47Completed13 daysPhone CallCity 311
9/9/20265515 S MOODY AVEGarfield Ridge13Completed13 daysMobile DeviceCity 311
9/9/20264130 N ASHLAND AVELake View47Completed13 daysMobile DeviceCity 311
9/9/20263440 N ORIOLE AVEDunning38Completed13 daysPhone CallCity 311
9/9/20263100 W TOUHY AVEWest Ridge50Completed5 daysMobile DeviceCity 311
9/9/20264031 S ARTESIAN AVEBrighton Park12Completed15 daysPhone CallCity 311
9/9/20263433 W 38TH STBrighton Park12Completed15 daysPhone CallCity 311
9/9/20265144 W ROSCOE STPortage Park31Completed14 daysMobile DeviceCity 311
9/9/20265947 S JUSTINE STWest Englewood16Completed15 daysMobile DeviceCity 311
9/9/202620 N MASON AVEAustin29Completed12 daysAlderman's OfficeCity 311
9/9/20263034 N CENTRAL PARK AVEAvondale35Completed13 daysInternetCity 311
9/9/20265411 W WARWICK AVEPortage Park30Completed15 daysPhone CallCity 311
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