RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4234 locations in the last 30 days (4420 reports) · Last sighting 18 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 — Nov 2–Nov 8, 2026

  • 🐀 948 new reports — down 7% from the week before
  • 👑 Lake View is Rat King with 67 reports
  • 📈 Biggest jump: Logan Square, up 15 from last week
  • 🏙️ The city took 9.7 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

59,882 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
2/26/20264543 W WELLINGTON AVEHermosa31Completed1 dayMobile DeviceCity 311
2/26/20262630 W 42ND STBrighton Park12Completed1 dayMobile DeviceCity 311
2/26/20262719 W CHASE AVEWest Ridge50Completed1 dayPhone CallCity 311
2/26/20261755 W CHASE AVERogers Park49Completed1 dayPhone CallCity 311
2/26/20263624 W 79TH PLAshburn18Completed1 dayPhone CallCity 311
2/26/20264223 N MONITOR AVEPortage Park38Completed1 dayPhone CallCity 311
2/26/20265342 N BERNARD STNorth Park39Completed1 dayInternetCity 311
2/26/2026525 N BISHOP STWest Town1Completed0 daysInternetCity 311
2/26/20265011 W 47TH STGarfield Ridge22Completed1 dayPhone CallCity 311
2/26/20261633 N MAYFIELD AVEAustin29Completed0 daysPhone CallCity 311
2/26/20263750 N WILTON AVELake View44Completed1 dayPhone CallCity 311
2/26/20265309 N LYNCH AVEJefferson Park45Completed1 dayMobile DeviceCity 311
2/26/20265650 W EASTWOOD AVEPortage Park45Completed1 dayMobile DeviceCity 311
2/26/20265329 W DAKIN STPortage Park30Completed1 dayPhone CallCity 311
2/26/20262545 N SOUTHPORT AVELincoln Park32Completed1 dayMobile DeviceCity 311
2/26/20265649 W LELAND AVEPortage Park45Completed1 dayMobile DeviceCity 311
2/26/20265438 S KOMENSKY AVEWest Elsdon23Completed1 dayMobile DeviceCity 311
2/26/20262413 N SPAULDING AVELogan Square35Completed1 dayMobile DeviceCity 311
2/26/20261231 N PULASKI RDHumboldt Park37Completed5 daysInternetCity 311
2/26/20261237 N PULASKI RDHumboldt Park37Completed1 dayInternetCity 311
2/26/20261233 N PULASKI RDHumboldt Park37Completed5 daysInternetCity 311
2/26/20263839 N DAMEN AVENorth Center47Completed1 dayMobile DeviceCity 311
2/26/20268801 S CARPENTER STAuburn Gresham21Completed1 dayMobile DeviceCity 311
2/26/20263551 N ORANGE AVEDunning38Completed1 dayMobile DeviceCity 311
2/26/20264748 S AVERS AVEArcher Heights14Completed0 daysPhone CallCity 311
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