RatCity — Chicago Rat and Rodent Sightings Map

RatCity

87 locations in the last day (91 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

59,712 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/7/20262847 N SOUTHPORT AVELake View32Completed14 daysPhone CallCity 311
8/7/20263201 W BERWYN AVENorth Park39Completed11 daysPhone CallCity 311
8/7/20265121 W GRACE STPortage Park30Completed12 daysPhone CallCity 311
8/7/20264352 W 51ST STArcher Heights14Completed10 daysAlderman's OfficeCity 311
8/7/20267949 S THROOP STAuburn Gresham17Completed7 daysPhone CallCity 311
8/7/2026622 W BRIAR PLLake View44Completed5 daysMobile DeviceCity 311
8/7/20263707 W 81ST STAshburn18Completed11 daysInternetCity 311
8/7/2026632 W BRIAR PLLake View44Completed5 daysMobile DeviceCity 311
8/7/20262238 W MEDILL AVELogan Square32Completed3 daysInternetCity 311
8/7/20265525 S KILDARE AVEWest Elsdon13Completed7 daysInternetCity 311
8/7/20265015 W WARWICK AVEPortage Park30Completed14 daysAlderman's OfficeCity 311
8/7/20265011 W WARWICK AVEPortage Park30Completed14 daysAlderman's OfficeCity 311
8/7/20263843 N CLAREMONT AVENorth Center47Completed13 daysInternetCity 311
8/7/202611006 S BEVERLY AVEMorgan Park21Completed13 daysPhone CallCity 311
8/7/20263018 N SPAULDING AVEAvondale35Completed14 daysAlderman's OfficeCity 311
8/7/20262356 W HARRISON STNear West Side28Completed3 daysInternetCity 311
8/7/20265431 N GLENWOOD AVEEdgewater48Completed14 daysInternetCity 311
8/7/20263668 N ELSTON AVEIrving Park35Completed14 daysMobile DeviceCity 311
8/7/20266203 N CICERO AVEForest Glen39Completed11 daysInternetCity 311
8/7/20263675 N ELSTON AVEIrving Park33Completed13 daysMobile DeviceCity 311
8/7/20262239 S KENNETH AVENorth Lawndale22Completed6 daysAlderman's OfficeCity 311
8/7/20263622 N OSCEOLA AVEDunning38Completed14 daysAlderman's OfficeCity 311
8/7/20261439 W SHAKESPEARE AVELincoln Park32Completed14 daysInternetCity 311
8/7/20265204 S NORMANDY AVEGarfield Ridge23Completed11 daysAlderman's OfficeCity 311
8/7/20261325 N CENTRAL AVEAustin37Completed13 daysPhone CallCity 311
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