RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4051 locations in the last 30 days (4228 reports) · Last sighting yesterday

📰 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 — 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

60,097 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/3/20264019 S TALMAN AVEBrighton Park12Completed11 daysInternetCity 311
8/14/20252724 N MULLIGAN AVEBelmont Cragin36Completed11 daysMobile DeviceCity 311
8/1/20262501 W LAWRENCE AVELincoln Square40Completed11 daysInternetCity 311
8/8/20263260 W WABANSIA AVEHumboldt Park26Completed11 daysMobile DeviceCity 311
10/3/20252315 W SUPERIOR STWest Town36Completed11 daysInternetCity 311
10/10/20265334 S GREENWOOD AVEHyde Park5Completed11 daysMobile DeviceCity 311
8/3/20266244 N TALMAN AVEWest Ridge50Completed11 daysInternetCity 311
10/9/20252800 S KARLOV AVESouth Lawndale22Completed11 daysPhone CallCity 311
8/22/20264426 N CENTRAL PARK AVEAlbany Park33Completed11 daysMobile DeviceCity 311
8/23/20267300 S CARPENTER STEnglewood17Completed11 daysMobile DeviceCity 311
9/1/202511926 S LASALLE STWest Pullman9Completed11 daysInternetCity 311
8/23/20252056 N LATROBE AVEBelmont Cragin36Completed11 daysMobile DeviceCity 311
8/9/20262422 W 35TH STMcKinley Park12Completed11 daysMobile DeviceCity 311
10/25/20262112 N BINGHAM STLogan Square1Completed11 daysMobile DeviceCity 311
8/3/20262608 W 38TH STBrighton Park12Completed11 daysMobile DeviceCity 311
9/21/20263053 N KENMORE AVELake View44Completed11 daysInternetCity 311
9/22/20253510 N ASHLAND AVELake View47Completed11 daysPhone CallCity 311
10/9/20252811 S KARLOV AVESouth Lawndale22Completed11 daysPhone CallCity 311
8/18/20251656 N BELL AVEWest Town32Completed11 daysInternetCity 311
8/14/20253416 W MELROSE STAvondale35Completed11 daysPhone CallCity 311
8/24/2025172 W BURTON PLNear North Side2Completed11 daysInternetCity 311
9/18/20255930 W DAKIN STPortage Park38Completed11 daysInternetCity 311
10/24/20262719 W EVERGREEN AVEWest Town26Completed11 daysPhone CallCity 311
8/11/20252801 W IRVING PARK RDIrving Park35Completed11 daysInternetCity 311
9/1/2025845 N MOZART STWest Town36Completed11 daysMobile DeviceCity 311
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