RatCity — Chicago Rat and Rodent Sightings Map

RatCity

3974 locations in the last 30 days (4152 reports) · Last sighting 22 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

60,312 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/31/20255100 W WARWICK AVEPortage Park30Completed13 daysAlderman's OfficeCity 311
8/20/202610959 S GEast Side10Completed13 daysInternetCity 311
8/21/20263039 N HONORE STNorth Center32Completed13 daysPhone CallCity 311
7/30/20261815 N KARLOV AVEHermosa26Completed13 daysPhone CallCity 311
8/19/20263057 N TROY STAvondale35Completed13 daysMobile DeviceCity 311
8/28/20252939 S LOWE AVEBridgeport11Completed13 daysInternetCity 311
9/23/20264511 N ARTESIAN AVELincoln Square47Completed13 daysPhone CallCity 311
10/21/20261414 W ALBION AVERogers Park49Completed13 daysMobile DeviceCity 311
9/8/20263617 N GREENVIEW AVELake View44Completed13 daysPhone CallCity 311
8/7/20256100 W 63RD PLClearing13Completed13 daysInternetCity 311
9/23/20268065 S ST LOUIS AVEAshburn18Completed13 daysPhone CallCity 311
9/2/20258425 W SUNNYSIDE AVEO'Hare38Completed13 daysAlderman's OfficeCity 311
7/24/20265113 N KOLMAR AVEAlbany Park39Completed13 daysPhone CallCity 311
8/7/20262435 W GUNNISON STLincoln Square40Completed13 daysMobile DeviceCity 311
8/6/20261715 N TRIPP AVEHumboldt Park26Completed13 daysInternetCity 311
9/15/20261263 W 74TH STWest Englewood17Completed13 daysPhone CallCity 311
9/12/20253948 W DICKENS AVELogan Square35Completed13 daysPhone CallCity 311
10/27/20262428 W THOMAS STWest Town26Completed13 daysPhone CallCity 311
8/26/2025354 N AVERS AVEWest Garfield Park37Completed13 daysAlderman's OfficeCity 311
9/2/20255044 W NEWPORT AVEPortage Park31Completed13 daysPhone CallCity 311
10/13/20261754 N WHIPPLE STHumboldt Park26Completed13 daysMobile DeviceCity 311
9/15/20263100 W TOUHY AVEWest Ridge50Completed13 daysMobile DeviceCity 311
8/12/20251622 N HERMITAGE AVEWest Town32Completed13 daysInternetCity 311
10/3/20261730 N LOREL AVEAustin37Completed13 daysMobile DeviceCity 311
9/12/20253952 W DICKENS AVELogan Square35Completed13 daysPhone CallCity 311
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