RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4523 locations in the last 30 days (4692 reports) · Last sighting 19 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

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/25/20252925 W FARWELL AVEWest Ridge50Completed8 daysInternetCity 311
10/3/20256513 N CALIFORNIA AVEWest Ridge50Completed3 daysPhone CallCity 311
10/3/20256515 N CALIFORNIA AVEWest Ridge50Completed3 daysPhone CallCity 311
9/30/20252731 W ESTES AVEWest Ridge50Completed7 daysPhone CallCity 311
9/30/20256501 N CALIFORNIA AVEWest Ridge50Completed7 daysAlderman's OfficeCity 311
9/18/20263010 W FARGO AVEWest Ridge50Open—InternetCity 311
9/30/20256040 N TROY STWest Ridge50Completed9 daysInternetCity 311
9/30/20252714 W LUNT AVEWest Ridge50Completed9 daysPhone CallCity 311
10/3/20256315 N TALMAN AVEWest Ridge50Completed6 daysPhone CallCity 311
10/3/20256221 N DRAKE AVENorth Park50Completed6 daysPhone CallCity 311
11/29/20252136 W ARTHUR AVEWest Ridge50Completed2 daysInternetCity 311
4/27/20263026 W CHASE AVEWest Ridge50Completed4 daysPhone CallCity 311
4/28/20266322 N ALBANY AVEWest Ridge50Completed3 daysInternetCity 311
9/7/20256300 N LAWNDALE AVENorth Park50Completed9 daysPhone CallCity 311
9/7/20256259 N ARTESIAN AVEWest Ridge50Completed9 daysPhone CallCity 311
9/6/20252352 W TOUHY AVEWest Ridge50Completed10 daysInternetCity 311
8/6/20262651 W COYLE AVEWest Ridge50Completed11 daysPhone CallCity 311
8/6/20257410 N WASHTENAW AVEWest Ridge50Completed8 daysMobile DeviceCity 311
8/7/20263033 W JARVIS AVEWest Ridge50Completed11 daysPhone CallCity 311
8/13/20256300 N TROY STWest Ridge50Completed1 dayPhone CallCity 311
8/5/20252703 W BIRCHWOOD AVEWest Ridge50Completed9 daysAlderman's OfficeCity 311
6/26/20266039 N ALBANY AVEWest Ridge50Completed6 daysPhone CallCity 311
8/20/20266321 N RICHMOND STWest Ridge50Completed8 daysInternetCity 311
8/23/20265647 N SACRAMENTO AVEWest Ridge50Completed18 daysInternetCity 311
8/23/20266045 N JERSEY AVENorth Park50Completed18 daysInternetCity 311
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