RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4384 locations in the last 30 days (4546 reports) · Last sighting 22 hours ago

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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.

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

53,243 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/2/2025823 N HOYNE AVEWest Town36Completed1 dayPhone CallCity 311
11/17/2025823 N HOYNE AVEWest Town36Completed1 dayPhone CallCity 311
4/21/20268239 W IRVING PARK RDDunning38Completed1 dayInternetCity 311
8/26/20268239 S MOZART STAshburn18Completed8 daysInternetCity 311
6/25/20268239 S MARSHFIELD AVEAuburn Gresham17Completed5 daysMobile DeviceCity 311
12/22/20258239 S INDIANA AVEChatham6Completed1 dayMobile DeviceCity 311
9/11/20258239 S DR MARTIN LUTHER KING JR DRChatham6Completed12 daysMobile DeviceCity 311
9/29/20258238 W FOREST PRESERVE AVEDunning38Completed7 daysAlderman's OfficeCity 311
6/15/20268238 W FOREST PRESERVE AVEDunning38Completed1 dayPhone CallCity 311
2/13/20268237 S SAGINAW AVESouth Chicago7Completed3 daysInternetCity 311
8/31/20268237 S MAPLEWOOD AVEAshburn18Completed1 dayPhone CallCity 311
10/24/20258236 S PEORIA STAuburn Gresham17Completed4 daysPhone CallCity 311
4/27/20268235 S EBERHART AVEChatham6Completed3 daysMobile DeviceCity 311
8/27/20258235 S DREXEL AVEChatham8Completed6 daysPhone CallCity 311
9/2/20258235 S DREXEL AVEChatham8Completed9 daysPhone CallCity 311
9/2/20258235 S DREXEL AVEChatham8Completed13 daysPhone CallCity 311
8/29/20258235 S DREXEL AVEChatham8Completed4 daysPhone CallCity 311
9/21/20268234 S PAULINA STAuburn Gresham17Open—Phone CallCity 311
8/24/20268234 S PAULINA STAuburn Gresham17Completed10 daysPhone CallCity 311
10/16/20258233 S HOMAN AVEAshburn18Completed7 daysPhone CallCity 311
9/19/20268233 S DR MARTIN LUTHER KING JR DRChatham6Open—InternetCity 311
8/25/20268233 S ASHLAND AVEAuburn Gresham17Completed10 daysInternetCity 311
8/19/20258232 S MARSHFIELD AVEAuburn Gresham17Completed1 dayPhone CallCity 311
8/14/20258232 S FAIRFIELD AVEAshburn18Completed5 daysMobile DeviceCity 311
5/22/20268231 S CAMPBELL AVEAshburn18Completed5 daysAlderman's OfficeCity 311
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