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
9/8/202612861 S GREEN STWest Pullman9Completed13 daysMobile DeviceCity 311
9/8/20261630 W BARRY AVELake View32Completed13 daysMobile DeviceCity 311
9/8/20268550 S BURNHAM AVESouth Chicago7Completed1 dayPhone CallCity 311
9/8/20263301 N PLAINFIELD AVEDunning38Completed8 daysInternetCity 311
9/8/20263525 N RETA AVELake View44Completed13 daysInternetCity 311
9/8/20263943 W 60TH STWest Lawn23Completed13 daysMobile DeviceCity 311
9/8/20262914 W RASCHER AVELincoln Square39Completed10 daysMobile DeviceCity 311
9/8/20264317 S HERMITAGE AVENew City15Completed10 daysMobile DeviceCity 311
9/8/20264349 S HERMITAGE AVENew City15Completed10 daysMobile DeviceCity 311
9/8/20264350 S HERMITAGE AVENew City15Completed10 daysMobile DeviceCity 311
9/8/20263609 S ARCHER AVEMcKinley Park12Completed9 daysMobile DeviceCity 311
9/8/20262735 W RASCHER AVELincoln Square40Completed9 daysInternetCity 311
9/8/20263431 N KOSTNER AVEIrving Park30Completed16 daysMobile DeviceCity 311
9/8/20264500 N MONITOR AVEPortage Park38Completed14 daysMobile DeviceCity 311
9/8/20268145 S INGLESIDE AVEChatham8Completed9 daysPhone CallCity 311
9/8/2026511 N OAKLEY BLVDWest Town36Completed13 daysMobile DeviceCity 311
9/8/20267513 S EVANS AVEGreater Grand Crossing6Completed15 daysInternetCity 311
9/8/20265519 W LAWRENCE AVEPortage Park45Completed13 daysInternetCity 311
9/8/20264760 N LINDER AVEPortage Park45Completed15 daysInternetCity 311
9/8/20263512 N ASHLAND AVELake View47Completed6 daysInternetCity 311
9/8/2026324 W 30TH STArmour Square11Completed10 daysInternetCity 311
9/8/20265511 W LAWRENCE AVEPortage Park45Completed13 daysInternetCity 311
9/8/20263519 W ADAMS STEast Garfield Park28Completed1 dayMobile DeviceCity 311
9/8/20267037 S HERMITAGE AVEWest Englewood17Completed15 daysMobile DeviceCity 311
9/8/20261012 W CULLERTON STLower West Side25Completed9 daysPhone CallCity 311
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