RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4524 locations in the last 30 days (4690 reports) · Last sighting 18 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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/16/20266542 N HOYNE AVEWest Ridge40Completed6 daysMobile DeviceCity 311
9/17/20262093 W LUNT AVEWest Ridge50Completed1 dayPhone CallCity 311
7/8/20267234 N BELL AVEWest Ridge49Completed7 daysInternetCity 311
6/16/20266540 N HOYNE AVEWest Ridge40Completed6 daysMobile DeviceCity 311
9/18/20265845 N WASHTENAW AVEWest Ridge40Open—Phone CallCity 311
7/6/20266963 N BELL AVEWest Ridge40Completed9 daysInternetCity 311
8/13/20266341 N RICHMOND STWest Ridge50Completed1 dayInternetCity 311
7/7/20266106 N WASHTENAW AVEWest Ridge40Completed8 daysSalesforce Mobile AppCity 311
9/18/20265848 N TALMAN AVEWest Ridge40Open—Phone CallCity 311
6/16/20266536 N HOYNE AVEWest Ridge40Completed6 daysMobile DeviceCity 311
8/4/20266451 N RICHMOND STWest Ridge50Completed10 daysPhone CallCity 311
7/23/20265929 N MAPLEWOOD AVEWest Ridge40Completed11 daysMobile DeviceCity 311
7/9/20262322 W PETERSON AVEWest Ridge40Completed7 daysInternetCity 311
7/19/20266328 N BELL AVEWest Ridge50Completed1 dayMobile DeviceCity 311
9/22/20256215 N BELL AVEWest Ridge50Completed4 daysMobile DeviceCity 311
7/22/20265649 N ARTESIAN AVEWest Ridge40Completed12 daysMobile DeviceCity 311
9/23/20256460 N CLAREMONT AVEWest Ridge50Completed3 daysPhone CallCity 311
9/25/20253000 W PRATT BLVDWest Ridge50Completed1 dayInternetCity 311
9/17/20267030 N BELL AVEWest Ridge50Open—Mobile DeviceCity 311
7/14/20267444 N ARTESIAN AVEWest Ridge50Completed1 dayPhone CallCity 311
10/22/20252209 W HIGHLAND AVEWest Ridge50Completed1 dayPhone CallCity 311
8/1/20262514 W BIRCHWOOD AVEWest Ridge50Completed11 daysMobile DeviceCity 311
5/13/20262818 W MORSE AVEWest Ridge50Completed1 dayAlderman's OfficeCity 311
7/31/20262346 W TOUHY AVEWest Ridge50Completed12 daysInternetCity 311
9/17/20266127 N TALMAN AVEWest Ridge40Open—Phone CallCity 311
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