RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4444 locations in the last 30 days (4622 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

58,010 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/10/20262554 W WINNEMAC AVELincoln Square40Completed5 daysPhone CallCity 311
6/15/20262555 N CLARK STLincoln Park43Completed1 dayInternetCity 311
9/28/20262555 N CLARK STLincoln Park43Completed9 daysPhone CallCity 311
9/27/20262555 N CLARK STLincoln Park43Completed10 daysMobile DeviceCity 311
9/25/20262555 N CLARK STLincoln Park43Completed12 daysInternetCity 311
9/30/20252555 W CATALPA AVELincoln Square40Completed8 daysInternetCity 311
3/31/20262555 W RASCHER AVELincoln Square40Completed1 dayInternetCity 311
3/28/20262556 S HILLOCK AVEBridgeport11Completed2 daysInternetCity 311
2/14/20262556 S HILLOCK AVEBridgeport11Completed2 daysInternetCity 311
11/14/20252556 S WENTWORTH AVEArmour Square11Completed4 daysMobile DeviceCity 311
10/13/20262556 W 106TH PLBeverly19Completed7 daysPhone CallCity 311
7/29/20262556 W JARVIS AVEWest Ridge50Completed13 daysMobile DeviceCity 311
8/1/20262556 W SUPERIOR STWest Town36Completed16 daysInternetCity 311
11/23/20252557 W FARWELL AVEWest Ridge40Completed2 daysInternetCity 311
6/21/20262557 W FULLERTON AVELogan Square1Completed9 daysInternetCity 311
5/8/20262557 W THOMAS STWest Town36Completed6 daysPhone CallCity 311
9/13/20262558 N CANNON DRLincoln Park43Completed8 daysInternetCity 311
4/1/20262558 N HARLEM AVE——Completed2 daysInternetCity 311
7/16/20262558 N NORDICA AVEMontclare29Completed12 daysMobile DeviceCity 311
9/12/20262558 N SOUTHPORT AVELincoln Park32Completed11 daysInternetCity 311
2/10/20262558 S BLUE ISLAND AVELower West Side25Completed1 dayInternetCity 311
2/19/20262558 W DIVISION STWest Town26Completed0 daysMobile DeviceCity 311
6/11/20262558 W DIVISION STWest Town26Completed1 dayInternetCity 311
10/1/20252558 W THOMAS STWest Town36Completed8 daysInternetCity 311
10/20/20252558 W WINNEMAC AVELincoln Square40Completed6 daysMobile DeviceCity 311
Page 666 of 2,321
PreviousNext