RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4693 locations in the last 30 days (4844 reports) · Last sighting 17 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.

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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

55,179 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/2/20256449 S NORMANDY AVEClearing13Completed7 daysInternetCity 311
7/13/20266449 S NORMANDY AVEClearing13Completed7 daysInternetCity 311
9/23/20256449 S NORMANDY AVEClearing13Completed9 daysInternetCity 311
8/14/20256449 S NORMANDY AVEClearing13Completed11 daysInternetCity 311
12/10/20256449 S NORMANDY AVEClearing13Completed1 dayInternetCity 311
1/7/20266449 S NORMANDY AVEClearing13Completed2 daysInternetCity 311
7/13/20266449 S MOZART STChicago Lawn15Completed10 daysAlderman's OfficeCity 311
7/9/20266449 S KNOX AVEClearing13Completed5 daysMobile DeviceCity 311
8/2/20266449 S CALIFORNIA AVEChicago Lawn16Completed1 dayPhone CallCity 311
8/23/20256449 N GLENWOOD AVERogers Park49Completed12 daysMobile DeviceCity 311
1/9/20266448 S ROCKWELL STChicago Lawn16Completed0 daysPhone CallCity 311
10/8/20266448 S PARNELL AVEEnglewood6Open—Phone CallCity 311
5/15/20266448 S DREXEL AVEWoodlawn20Completed4 daysPhone CallCity 311
8/27/20266447 W 64TH STClearing13Completed14 daysInternetCity 311
1/15/20266447 N TROY STWest Ridge50Completed1 dayPhone CallCity 311
8/23/20256447 N GLENWOOD AVERogers Park49Completed12 daysMobile DeviceCity 311
11/24/20256447 N BOSWORTH AVERogers Park49Completed2 daysPhone CallCity 311
3/23/20266447 N BOSWORTH AVERogers Park49Completed1 dayAlderman's OfficeCity 311
5/27/20266446 W FOSTER AVENorwood Park41Completed1 dayPhone CallCity 311
2/23/20266446 S PARNELL AVEEnglewood6Completed2 daysInternetCity 311
8/9/20256446 S ARTESIAN AVEChicago Lawn16Completed12 daysMobile DeviceCity 311
9/25/20266446 N NOKOMIS AVEForest Glen45Completed11 daysPhone CallCity 311
9/16/20266445 W RAVEN STNorwood Park45Completed1 dayPhone CallCity 311
9/25/20266445 W RAVEN STNorwood Park45Completed3 daysPhone CallCity 311
10/2/20256445 S NORMANDY AVEClearing13Completed7 daysInternetCity 311
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