RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4613 locations in the last 30 days (4765 reports) · Last sighting yesterday

📰 Blog
DayWeek30 DaysYear
Loading map…

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.

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

55,690 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/16/20252658 N GENEVA TERLincoln Park43Completed10 daysMobile DeviceCity 311
9/16/20251434 W CHESTNUT STWest Town27Completed1 dayPhone CallCity 311
9/16/2025900 N RIDGEWAY AVEHumboldt Park27Completed13 daysInternetCity 311
9/16/20251719 S CLINTON STLower West Side25Completed6 daysInternetCity 311
9/16/20255525 S WINCHESTER AVEWest Englewood16Completed8 daysAlderman's OfficeCity 311
9/16/20253219 N NEWLAND AVEDunning36Completed10 daysAlderman's OfficeCity 311
9/16/20254195 S LOWE AVENew City11Completed8 daysInternetCity 311
9/16/20251437 W LILL AVELincoln Park32Completed9 daysInternetCity 311
9/16/20253914 N SAWYER AVEIrving Park33Completed1 dayPhone CallCity 311
9/16/20256669 W HAYES AVENorwood Park41Completed9 daysPhone CallCity 311
9/16/20254845 N MULLIGAN AVEJefferson Park41Completed9 daysPhone CallCity 311
9/16/202510728 S HAMLIN AVEMount Greenwood19Completed1 dayPhone CallCity 311
9/16/202511253 S CENTRAL PARK AVEMount Greenwood19Completed0 daysPhone CallCity 311
9/16/202510739 S MILLARD AVEMount Greenwood19Completed1 dayPhone CallCity 311
9/16/2025524 W GRANT PLLincoln Park43Completed10 daysAlderman's OfficeCity 311
9/16/2025528 W GRANT PLLincoln Park43Completed10 daysAlderman's OfficeCity 311
9/16/2025452 W ENGLEWOOD AVEEnglewood20Completed7 daysMobile DeviceCity 311
9/16/2025448 W ENGLEWOOD AVEEnglewood20Completed7 daysMobile DeviceCity 311
9/16/2025549 W WELLINGTON AVELake View44Completed13 daysInternetCity 311
9/16/20253145 N PAULINA STLake View32Completed10 daysInternetCity 311
9/16/20254959 S HOYNE AVENew City15Completed8 daysPhone CallCity 311
9/16/20257437 S WENTWORTH AVEGreater Grand Crossing6Completed7 daysPhone CallCity 311
9/16/20254346 S GREENWOOD AVEKenwood4Completed7 daysInternetCity 311
9/16/202510300 S BENSLEY AVESouth Deering7Completed13 daysPhone CallCity 311
9/16/20256339 N RIDGEWAY AVENorth Park50Completed8 daysMobile DeviceCity 311
Page 360 of 2,228
PreviousNext