RatCity — Chicago Rat and Rodent Sightings Map

RatCity

71 locations in the last day (75 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.

32080fewer → more

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
9/15/20261822 N RICHMOND STLogan Square26Completed1 dayPhone CallCity 311
9/15/20263100 W TOUHY AVEWest Ridge50Completed13 daysMobile DeviceCity 311
9/15/20262722 N BOSWORTH AVELincoln Park32Completed14 daysMobile DeviceCity 311
9/15/202610829 S LOWE AVERoseland21Completed1 dayPhone CallCity 311
9/15/20261839 W BYRON STNorth Center47Completed1 dayPhone CallCity 311
9/15/20264015 W 56TH STWest Elsdon13Completed13 daysInternetCity 311
9/15/20264015 W 56TH STWest Elsdon13Completed13 daysInternetCity 311
9/15/202610400 S WESTERN AVEBeverly19Completed14 daysPhone CallCity 311
9/15/20266226 N LEADER AVEForest Glen39Completed10 daysAlderman's OfficeCity 311
9/15/20263745 N LINCOLN AVENorth Center47Completed13 daysInternetCity 311
9/15/20264527 N KEOKUK AVEIrving Park39Completed10 daysAlderman's OfficeCity 311
9/15/20264824 S LAVERGNE AVEGarfield Ridge22Completed14 daysPhone CallCity 311
9/15/20263637 S ARTESIAN AVEMcKinley Park12Completed9 daysPhone CallCity 311
9/15/20263853 N SAYRE AVEDunning38Completed13 daysPhone CallCity 311
9/15/20261414 N NOBLE STWest Town1Completed13 daysInternetCity 311
9/15/20266302 W GIDDINGS STPortage Park41Completed1 dayPhone CallCity 311
9/15/20265412 N NASHVILLE AVENorwood Park41Completed1 dayPhone CallCity 311
9/15/20263920 N CALIFORNIA AVEIrving Park35Completed13 daysInternetCity 311
9/15/20265341 N NOTTINGHAM AVENorwood Park41Completed15 daysInternetCity 311
9/15/20268331 S SOUTH SHORE DRSouth Chicago10Completed8 daysPhone CallCity 311
9/15/20262027 N HOWELincoln Park43Completed14 daysSalesforce Mobile AppCity 311
9/15/20265000 N KIMBALL AVENorth Park39Completed10 daysPhone CallCity 311
9/15/20262433 S HARDING AVESouth Lawndale22Completed14 daysInternetCity 311
9/15/20264311 W 47TH STArcher Heights14Completed9 daysInternetCity 311
9/15/2026118 E 124TH STWest Pullman9Completed14 daysPhone CallCity 311
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