RatCity — Chicago Rat and Rodent Sightings Map

RatCity

23 locations in the last day (24 reports) · Last sighting 19 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.

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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

59,238 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/28/20261919 W WARNER AVENorth Center47Completed15 daysMobile DeviceCity 311
9/28/20261446 W WALTON STWest Town1Completed14 daysInternetCity 311
9/28/20266029 S HERMITAGE AVEWest Englewood15Completed16 daysPhone CallCity 311
9/28/20264855 N KILBOURN AVEAlbany Park39Completed1 dayInternetCity 311
9/28/20264223 N DAMEN AVENorth Center47Completed16 daysInternetCity 311
9/28/20264706 N LEAVITT STLincoln Square47Completed16 daysMobile DeviceCity 311
9/28/20264740 N CAMPBELL AVELincoln Square40Completed15 daysInternetCity 311
9/28/20267615 W DEVON AVENorwood Park41Completed9 daysMobile DeviceCity 311
9/28/20262324 N HAMILTON AVELogan Square32Completed10 daysMobile DeviceCity 311
9/28/20261627 N DAYTON STLincoln Park43Completed15 daysInternetCity 311
9/28/20263440 N OPAL AVEDunning38Completed16 daysMobile DeviceCity 311
9/28/20265040 W FULLERTON AVEBelmont Cragin31Completed16 daysMobile DeviceCity 311
9/28/20265026 W FULLERTON AVEBelmont Cragin31Completed16 daysInternetCity 311
9/28/20263921 N SPAULDING AVEIrving Park33Completed15 daysInternetCity 311
9/28/20267628 S ESSEX AVESouth Shore7Completed11 daysMobile DeviceCity 311
9/28/20262628 S KEDZIE AVESouth Lawndale25Completed17 daysMobile DeviceCity 311
9/28/20262845 W BARRY AVEAvondale35Completed9 daysMobile DeviceCity 311
9/28/20264151 W HARRISON STWest Garfield Park24Completed16 daysPhone CallCity 311
9/28/20262172 N PARKSIDE AVEBelmont Cragin36Completed15 daysInternetCity 311
9/28/20263314 W DICKENS AVELogan Square35Completed9 daysMobile DeviceCity 311
9/28/20264650 N ROCKWELL STLincoln Square47Completed16 daysMobile DeviceCity 311
9/28/20263600 W BELMONT AVEIrving Park30Completed16 daysPhone CallCity 311
9/28/20267748 S DREXEL AVEGreater Grand Crossing8Completed8 daysPhone CallCity 311
9/28/20263300 N SPRINGFIELD AVEAvondale30Completed16 daysAlderman's OfficeCity 311
9/28/20263400 N HARDING AVEAvondale30Completed11 daysAlderman's OfficeCity 311
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