RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4514 locations in the last 30 days (4687 reports) · Last sighting 14 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

57,792 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/2/20251216 W MONTANA STLincoln Park32Completed9 daysInternetCity 311
9/16/20261456 W ELMDALE AVEEdgewater48Completed9 daysPhone CallCity 311
10/6/20252170 N MAPLEWOOD AVELogan Square1Completed9 daysMobile DeviceCity 311
9/2/2025300 W 31ST STArmour Square11Completed9 daysAlderman's OfficeCity 311
8/20/20252151 W WASHINGTON BLVDNear West Side27Completed9 daysPhone CallCity 311
8/12/20251527 W BARRY AVELake View32Completed9 daysInternetCity 311
9/22/20254738 W GRACE STPortage Park45Completed9 daysAlderman's OfficeCity 311
9/15/20255049 N NAGLE AVEJefferson Park41Completed9 daysMobile DeviceCity 311
8/2/20255414 S PAULINA STNew City16Completed9 daysMobile DeviceCity 311
9/2/20253031 S PRINCETON AVEArmour Square11Completed9 daysAlderman's OfficeCity 311
9/24/20256019 W HIGGINS AVEJefferson Park45Completed9 daysMobile DeviceCity 311
8/3/20257347 N BELL AVEWest Ridge49Completed9 daysInternetCity 311
7/29/20266015 W 59TH STClearing13Completed9 daysPhone CallCity 311
7/18/202610149 S LASALLE STRoseland9Completed9 daysInternetCity 311
7/30/20253445 N BELL AVENorth Center32Completed9 daysInternetCity 311
9/22/20263712 S WABASH AVEDouglas3Completed9 daysInternetCity 311
7/14/20268327 S KOMENSKY AVEAshburn18Completed9 daysPhone CallCity 311
9/29/20254906 W EDDY STPortage Park31Completed9 daysPhone CallCity 311
8/26/20262515 W 110TH STMorgan Park19Completed9 daysPhone CallCity 311
7/7/20262833 W BERWYN AVELincoln Square39Completed9 daysInternetCity 311
10/13/20251803 N MULLIGAN AVEAustin29Completed9 daysInternetCity 311
9/21/20258018 S YALE AVEChatham17Completed9 daysInternetCity 311
9/16/20256669 W HAYES AVENorwood Park41Completed9 daysPhone CallCity 311
6/29/20262825 N LOWELL AVEHermosa31Completed9 daysPhone CallCity 311
10/12/20253761 S MORGAN STBridgeport11Completed9 daysInternetCity 311
Page 774 of 2,312
PreviousNext