RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4188 locations in the last 30 days (4372 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
6/9/20261843 S TROY STNorth Lawndale24Completed1 dayAlderman's OfficeCity 311
7/30/20251400 S HAMLIN AVENorth Lawndale24Completed7 daysAlderman's OfficeCity 311
9/28/20263336 W DOUGLAS BLVDNorth Lawndale24Completed11 daysInternetCity 311
8/26/20261552 S SAWYER AVENorth Lawndale24Completed19 daysMobile DeviceCity 311
7/30/20261615 S CALIFORNIA BLVDNorth Lawndale24Completed20 daysInternetCity 311
7/29/20254320 W 21ST STNorth Lawndale24Completed8 daysInternetCity 311
7/29/20261900 S AVERS AVENorth Lawndale24Completed6 daysAlderman's OfficeCity 311
7/17/20262206 S KEDVALE AVENorth Lawndale22Completed10 daysPhone CallCity 311
9/11/20261229 S AVERS AVENorth Lawndale24Completed12 daysPhone CallCity 311
7/19/20261307 S SPAULDING AVENorth Lawndale24Completed8 daysMobile DeviceCity 311
10/1/20261824 S SAWYER AVENorth Lawndale24Completed14 daysMobile DeviceCity 311
8/3/20251651 S MILLARD AVENorth Lawndale24Completed8 daysPhone CallCity 311
8/14/20261856 S AVERS AVENorth Lawndale24Completed13 daysPhone CallCity 311
7/28/20251800 S KOMENSKY AVENorth Lawndale24Completed8 daysAlderman's OfficeCity 311
8/2/20261240 S CHRISTIANA AVENorth Lawndale24Completed8 daysPhone CallCity 311
7/27/20263514 W GRENSHAW STNorth Lawndale24Completed10 daysInternetCity 311
9/4/20263539 W 12TH PLNorth Lawndale24Completed11 daysInternetCity 311
6/16/20261337 S CENTRAL PARK AVENorth Lawndale24Completed2 daysMobile DeviceCity 311
9/29/20261404 S HAMLIN AVENorth Lawndale24Completed15 daysPhone CallCity 311
8/10/20263434 W GRENSHAW STNorth Lawndale24Completed9 daysMobile DeviceCity 311
9/17/20262128 S HARDING AVENorth Lawndale24Completed13 daysMobile DeviceCity 311
8/10/20261940 S DRAKE AVENorth Lawndale24Completed8 daysMobile DeviceCity 311
8/3/20263542 W CERMAK RDNorth Lawndale24Completed1 dayInternetCity 311
8/31/20263410 W DOUGLAS BLVDNorth Lawndale24Completed14 daysPhone CallCity 311
9/11/20261822 S SPAULDING AVENorth Lawndale24Completed12 daysMobile DeviceCity 311
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