RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4470 locations in the last 30 days (4616 reports) · Last sighting 2 days 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

54,394 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/20/20253550 W MONTROSE AVEAlbany Park33Completed15 daysInternetCity 311
8/20/2025547 N HAMLIN AVEHumboldt Park27Completed15 daysPhone CallCity 311
8/20/20252431 W BRADLEY PLNorth Center47Completed13 daysMobile DeviceCity 311
8/20/20252224 W MONROE STNear West Side27Completed15 daysMobile DeviceCity 311
8/20/20254716 N ARTESIAN AVELincoln Square40Completed15 daysMobile DeviceCity 311
8/20/20252101 W 51ST STNew City16Completed13 daysInternetCity 311
8/20/20252928 S PRINCETON AVEArmour Square11Completed9 daysInternetCity 311
8/20/20256725 N SHERIDAN RDRogers Park49Completed14 daysMobile DeviceCity 311
8/20/20256723 N SHERIDAN RDRogers Park49Completed14 daysMobile DeviceCity 311
8/20/20256867 N OVERHILL AVEEdison Park41Completed7 daysMobile DeviceCity 311
8/20/20252024 N PARKSIDE AVEBelmont Cragin36Completed14 daysPhone CallCity 311
8/20/20254345 W WILCOX STWest Garfield Park28Completed7 daysInternetCity 311
8/20/20253943 N MOZART STIrving Park35Completed13 daysInternetCity 311
8/20/20252249 W IOWA STWest Town36Completed9 daysMobile DeviceCity 311
8/20/20255236 N NASHVILLE AVENorwood Park41Completed7 daysMobile DeviceCity 311
8/20/20254648 W WASHINGTON BLVDAustin28Completed7 daysPhone CallCity 311
8/20/20255844 W GIDDINGS STPortage Park45Completed14 daysInternetCity 311
8/20/20256647 S KOMENSKY AVEWest Lawn13Completed8 daysInternetCity 311
8/21/20258029 S MARSHFIELD AVEAuburn Gresham17Completed8 daysInternetCity 311
8/21/20251423 W CUYLER AVELake View47Completed12 daysInternetCity 311
8/21/20258004 S ESCANABA AVESouth Chicago7Completed6 daysInternetCity 311
8/21/2025802 N MOZART STWest Town36Completed13 daysInternetCity 311
8/21/20254727 W PALMER STBelmont Cragin26Completed12 daysMobile DeviceCity 311
8/21/20256900 S EMERALD AVEEnglewood6Completed5 daysInternetCity 311
8/21/20252735 N RIDGEWAY AVELogan Square35Completed13 daysInternetCity 311
Page 187 of 2,176
PreviousNext