RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4502 locations in the last 30 days (4668 reports) · Last sighting 21 hours ago

📰 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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/3/202610327 S ARTESIAN AVEBeverly19Completed4 daysInternetCity 311
9/18/202510327 S UNION AVERoseland21Completed8 daysPhone CallCity 311
5/3/202610328 S WALLACE STRoseland21Completed1 dayPhone CallCity 311
8/29/202510328 S WALLACE STRoseland21Completed6 daysPhone CallCity 311
10/29/202510329 S ALBANY AVEMount Greenwood19Completed1 dayPhone CallCity 311
8/27/202510329 S ALBANY AVEMount Greenwood19Completed12 daysInternetCity 311
3/6/202610329 S ALBANY AVEMount Greenwood19Completed2 daysInternetCity 311
10/25/202510329 S ALBANY AVEMount Greenwood19Completed5 daysInternetCity 311
8/5/20251032 N MARSHFIELD AVEWest Town1Completed8 daysMobile DeviceCity 311
7/28/20251032 N MARSHFIELD AVEWest Town1Completed8 daysMobile DeviceCity 311
3/14/20261032 N MASSASOIT AVEAustin29Completed4 daysInternetCity 311
8/30/20251032 N MONTICELLO AVEHumboldt Park27Completed10 daysMobile DeviceCity 311
6/24/20261032 W 31ST PLBridgeport11Completed2 daysInternetCity 311
5/10/20261032 W LOYOLA AVERogers Park49Completed4 daysInternetCity 311
9/25/20251032 W MONTROSE AVEUptown46Completed8 daysInternetCity 311
5/1/202610330 S CHRISTIANA AVEMount Greenwood19Completed3 daysAlderman's OfficeCity 311
7/27/202510330 S CLAREMONT AVEBeverly19Completed8 daysPhone CallCity 311
7/31/202510330 S CLAREMONT AVEBeverly19Completed4 daysPhone CallCity 311
6/29/202610330 S WESTERN AVEBeverly19Completed1 dayPhone CallCity 311
8/13/202510331 S ALBANY AVEMount Greenwood19Completed12 daysMobile DeviceCity 311
4/22/202610331 S CRANDON AVESouth Deering7Completed1 dayPhone CallCity 311
5/7/202610331 S CRANDON AVESouth Deering7Completed4 daysPhone CallCity 311
8/28/202610331 S LEast Side10Completed5 daysMobile DeviceCity 311
3/26/202610332 S UNION AVERoseland21Completed1 dayMobile DeviceCity 311
5/28/202610332 S WESTERN AVEBeverly19Completed1 dayInternetCity 311
Page 22 of 2,120
PreviousNext