RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4035 locations in the last 30 days (4209 reports) · Last sighting 21 hours 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

60,241 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/22/20261936 N HALSTED STLincoln Park43Completed13 daysInternetCity 311
8/14/20251936 N HALSTED STLincoln Park43Completed12 daysInternetCity 311
9/11/20261936 N HALSTED STLincoln Park43Completed12 daysMobile DeviceCity 311
3/12/20261936 N CLEVELAND AVELincoln Park43Completed4 daysMobile DeviceCity 311
8/27/20261935 W WARNER AVENorth Center47Completed13 daysMobile DeviceCity 311
5/19/20261935 W ROSCOE STNorth Center32Completed2 daysPhone CallCity 311
9/10/20251935 W RACE AVEWest Town36Completed13 daysInternetCity 311
8/7/20251935 W GRACE STNorth Center47Completed14 daysInternetCity 311
8/31/20261935 W BERTEAU AVENorth Center47Completed15 daysInternetCity 311
10/26/20261935 S WABASH AVENear South Side3Completed11 daysInternetCity 311
8/21/20251935 S RACINE AVELower West Side25Completed7 daysMobile DeviceCity 311
2/26/20261935 S RACINE AVELower West Side25Completed1 dayMobile DeviceCity 311
8/13/20251935 N NORMANDY AVEAustin29Completed12 daysPhone CallCity 311
5/26/20261935 N LEAVITT STLogan Square32Completed2 daysPhone CallCity 311
9/14/20261935 N LEAVITT STLogan Square32Completed14 daysPhone CallCity 311
9/24/20261935 N LEAVITT STLogan Square32Completed11 daysPhone CallCity 311
4/14/20261935 N KOSTNER AVEHermosa26Completed1 dayPhone CallCity 311
6/3/20261935 N KARLOV AVEHermosa26Completed5 daysMobile DeviceCity 311
7/29/20261935 N FRANCISCO AVELogan Square26Completed13 daysPhone CallCity 311
8/17/20261935 N DRAKE AVELogan Square26Completed8 daysMobile DeviceCity 311
8/31/20261935 N DRAKE AVELogan Square26Completed10 daysMobile DeviceCity 311
2/9/20261935 E 71ST STSouth Shore5Completed1 dayInternetCity 311
5/22/20261934 W WABANSIA AVEWest Town32Completed4 daysPhone CallCity 311
6/4/20261934 W WABANSIA AVEWest Town32Completed1 dayPhone CallCity 311
9/17/20261934 W WABANSIA AVEWest Town32Completed1 dayPhone CallCity 311
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