RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4045 locations in the last 30 days (4222 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.

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
10/19/20261100 N MARSHFIELD AVEWest Town1Completed11 daysMobile DeviceCity 311
8/25/20252622 W DIVISION STWest Town26Completed11 daysMobile DeviceCity 311
8/1/20254234 N SACRAMENTO AVEIrving Park33Completed11 daysPhone CallCity 311
8/3/20261839 W BYRON STNorth Center47Completed11 daysInternetCity 311
8/25/20255601 N NORTHWEST HWYNorwood Park45Completed11 daysInternetCity 311
10/5/20254328 N AUSTIN AVEPortage Park38Completed11 daysMobile DeviceCity 311
7/19/20261641 N ROCKWELL STWest Town1Completed11 daysInternetCity 311
7/13/20263843 N CLAREMONT AVENorth Center47Completed11 daysInternetCity 311
7/13/20262153 W AGATITE AVELincoln Square47Completed11 daysPhone CallCity 311
8/8/202657 E 75TH STGreater Grand Crossing6Completed11 daysInternetCity 311
10/22/20261810 S RACINE AVELower West Side25Completed11 daysInternetCity 311
9/6/2026417 E 88TH STChatham8Completed11 daysInternetCity 311
9/4/20252509 N HALSTED STLincoln Park43Completed11 daysInternetCity 311
8/1/20265048 W WELLINGTON AVEBelmont Cragin31Completed11 daysInternetCity 311
7/27/20261512 W BERWYN AVEEdgewater40Completed11 daysMobile DeviceCity 311
9/6/20264743 N MAPLEWOOD AVELincoln Square40Completed11 daysInternetCity 311
10/26/20263715 N RICHMOND STIrving Park35Completed11 daysInternetCity 311
10/26/20263711 N RICHMOND STIrving Park35Completed11 daysInternetCity 311
7/26/20252508 N GREENVIEW AVELincoln Park32Completed11 daysInternetCity 311
7/16/20262510 N BURLING STLincoln Park43Completed11 daysInternetCity 311
10/9/20256241 N NAPER AVENorwood Park45Completed11 daysInternetCity 311
10/22/20261635 W 17TH STLower West Side25Completed11 daysInternetCity 311
7/30/2026715 W 50TH STNew City20Completed11 daysPhone CallCity 311
8/7/20252058 N CAMPBELL AVELogan Square1Completed11 daysInternetCity 311
8/1/20254039 N SOUTHPORT AVELake View46Completed11 daysInternetCity 311
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