RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4187 locations in the last 30 days (4371 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

59,712 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/12/20261700 W BELLE PLAINE AVELake View47Completed5 daysPhone CallCity 311
11/1/20266201 S NAGLE AVEClearing13Completed5 daysInternetCity 311
11/28/20255828 N MOBILE AVENorwood Park45Completed5 daysMobile DeviceCity 311
4/30/20264705 W DIVERSEY AVEBelmont Cragin31Completed5 daysPhone CallCity 311
10/29/20257905 S DR MLK DRChatham6Completed5 daysPhone CallCity 311
6/5/20268101 S HONORE STAuburn Gresham17Completed5 daysPhone CallCity 311
7/27/20251243 N CLEAVER STWest Town1Completed5 daysMobile DeviceCity 311
6/17/20265063 N WINCHESTER AVELincoln Square40Completed5 daysInternetCity 311
6/20/20261751 N CLARK STLincoln Park43Completed5 daysMobile DeviceCity 311
10/25/20255752 W GIDDINGS STPortage Park45Completed5 daysInternetCity 311
6/10/20266525 N CLARK STRogers Park49Completed5 daysInternetCity 311
6/12/20263450 N BOSWORTH AVELake View47Completed5 daysAlderman's OfficeCity 311
11/20/20257555 S MARSHFIELD AVEAuburn Gresham17Completed5 daysPhone CallCity 311
10/29/20252102 S CHRISTIANA AVESouth Lawndale24Completed5 daysMobile DeviceCity 311
5/29/20265525 N MONITOR AVEJefferson Park45Completed5 daysMobile DeviceCity 311
5/27/20262933 N HAMLIN AVEAvondale31Completed5 daysMobile DeviceCity 311
9/19/20252213 S WOOD STLower West Side25Completed5 daysMobile DeviceCity 311
3/6/20262339 W RICE STWest Town36Completed5 daysMobile DeviceCity 311
3/6/20262937 W WILCOX STEast Garfield Park27Completed5 daysPhone CallCity 311
5/29/20262927 N ALLEN AVEAvondale35Completed5 daysMobile DeviceCity 311
8/10/20251256 N ARTESIAN AVEWest Town26Completed5 daysMobile DeviceCity 311
10/30/20252857 N NORMANDY AVEMontclare36Completed5 daysInternetCity 311
4/16/20264956 W WASHINGTON BLVDAustin28Completed5 daysInternetCity 311
6/7/20263044 N NATOMA AVEMontclare36Completed5 daysMobile DeviceCity 311
9/26/20255307 W EDDY STPortage Park30Completed5 daysInternetCity 311
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