RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4176 locations in the last 30 days (4355 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

59,882 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/16/20252839 N MONT CLARE AVEMontclare29Completed9 daysInternetCity 311
10/13/20252839 N MONT CLARE AVEMontclare29Completed4 daysPhone CallCity 311
8/1/20262839 N LINCOLN AVELake View32Completed12 daysMobile DeviceCity 311
9/27/20252839 N HAMLIN AVEAvondale35Completed9 daysInternetCity 311
6/29/20262839 N HAMLIN AVEAvondale35Completed7 daysInternetCity 311
11/13/20252839 N HAMLIN AVEAvondale35Completed4 daysPhone CallCity 311
7/28/20252839 N ELSTON AVEAvondale35Completed8 daysAlderman's OfficeCity 311
3/15/20262839 N CHRISTIANA AVEAvondale35Completed1 dayMobile DeviceCity 311
1/27/20262839 N CHRISTIANA AVEAvondale35Completed2 daysInternetCity 311
3/27/20262839 N CAMPBELL AVEAvondale35Completed3 daysMobile DeviceCity 311
7/17/20262838 W HARRISON STEast Garfield Park27Completed6 daysMobile DeviceCity 311
9/6/20262838 W 25TH STSouth Lawndale24Completed9 daysInternetCity 311
4/14/20262838 N RICHMOND STAvondale35Completed1 dayPhone CallCity 311
8/6/20262838 N LUNA AVEBelmont Cragin31Completed14 daysPhone CallCity 311
7/30/20252838 N LAWNDALE AVEAvondale35Completed8 daysInternetCity 311
6/23/20262838 N KIMBALL AVEAvondale35Completed8 daysPhone CallCity 311
6/22/20262838 N KIMBALL AVEAvondale35Completed4 daysInternetCity 311
9/30/20262837 W SUMMERDALE AVELincoln Square39Completed1 dayPhone CallCity 311
7/24/20262837 W SUMMERDALE AVELincoln Square39Completed13 daysPhone CallCity 311
11/6/20262837 W SUMMERDALE AVELincoln Square39Open—Phone CallCity 311
5/15/20262837 W SHERWIN AVEWest Ridge50Completed4 daysPhone CallCity 311
7/20/20262837 W HOWARDWest Ridge50Completed9 daysSalesforce Mobile AppCity 311
8/18/20262837 W 25TH PLSouth Lawndale24Completed15 daysPhone CallCity 311
11/20/20252837 S KOSTNER AVESouth Lawndale22Completed4 daysAlderman's OfficeCity 311
1/12/20262837 S DRAKE AVESouth Lawndale22Completed1 dayAlderman's OfficeCity 311
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