RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4015 locations in the last 30 days (4189 reports) · Last sighting 2 days 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

60,097 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/27/202611537 S WALLACE STWest Pullman21Completed2 daysInternetCity 311
3/23/20263428 W 107TH STMount Greenwood19Completed2 daysInternetCity 311
5/27/20267406 N CLAREMONT AVEWest Ridge50Completed2 daysAlderman's OfficeCity 311
7/7/2026161 W BURTON PLNear North Side2Completed2 daysAlderman's OfficeCity 311
6/3/20263906 W 55TH STWest Elsdon23Completed2 daysPhone CallCity 311
3/4/20263549 S UNION AVEBridgeport11Completed2 daysPhone CallCity 311
3/23/20262259 N TRIPP AVEHermosa35Completed2 daysMobile DeviceCity 311
11/5/202511101 S AVENUE DEast Side10Completed2 daysWalk-inCity 311
3/28/20261504 N GREENVIEW AVEWest Town1Completed2 daysMobile DeviceCity 311
5/17/20261815 W GRANVILLE AVEWest Ridge40Completed2 daysPhone CallCity 311
2/17/20265514 S NOTTINGHAM AVEGarfield Ridge13Completed2 daysInternetCity 311
3/29/20261912 S MAY STLower West Side25Completed2 daysInternetCity 311
4/29/20261968 W LAWRENCE AVELincoln Square47Completed2 daysAlderman's OfficeCity 311
2/21/20262315 W 51ST STGage Park15Completed2 daysMobile DeviceCity 311
4/4/20263531 N FREMONT STLake View44Completed2 daysMobile DeviceCity 311
6/24/20267149 S DORCHESTER AVESouth Shore8Completed2 daysInternetCity 311
8/2/20261938 S TRUMBULL AVENorth Lawndale24Completed2 daysMobile DeviceCity 311
11/5/20255026 S UNION AVENew City20Completed2 daysPhone CallCity 311
9/24/202510124 S WINSTON AVEWashington Heights21Completed2 daysPhone CallCity 311
10/31/20263435 N NEVA AVEDunning38Completed2 daysMobile DeviceCity 311
4/29/20269654 S EGGLESTON AVEWashington Heights9Completed2 daysPhone CallCity 311
12/27/20253255 N NATCHEZ AVEDunning38Completed2 daysPhone CallCity 311
7/8/20264917 S PRAIRIE AVEGrand Boulevard3Completed2 daysInternetCity 311
2/17/20266114 N WASHTENAW AVEWest Ridge40Completed2 daysInternetCity 311
3/28/20261629 W NORTH SHORE AVERogers Park49Completed2 daysMobile DeviceCity 311
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