RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4632 locations in the last 30 days (4788 reports) · Last sighting 20 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

53,915 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/25/2025744 W BELMONT AVELake View44Completed3 daysInternetCity 311
10/31/2025744 W ALDINE AVELake View44Completed5 daysInternetCity 311
9/11/2025744 W ALDINE AVELake View44Completed11 daysMobile DeviceCity 311
5/12/2026744 W ALDINE AVELake View44Completed2 daysInternetCity 311
4/18/2026744 W ALDINE AVELake View44Completed2 daysMobile DeviceCity 311
10/12/2025744 W ALDINE AVELake View44Completed3 daysInternetCity 311
11/20/2025744 W ALDINE AVELake View44Completed5 daysPhone CallCity 311
9/1/2025744 N SAWYER AVEHumboldt Park27Completed11 daysPhone CallCity 311
11/20/2025744 N LONG AVEAustin37Completed1 dayAlderman's OfficeCity 311
7/3/2026744 E 80TH STChatham6Completed6 daysMobile DeviceCity 311
9/29/20267449 S CHAMPLAIN AVEGreater Grand Crossing6Open—InternetCity 311
12/31/20257449 N OCONTO AVEEdison Park41Completed2 daysInternetCity 311
4/6/20267448 W BARRY AVEDunning29Completed1 dayInternetCity 311
5/26/20267448 S COTTAGE GROVE AVEGreater Grand Crossing6Completed3 daysPhone CallCity 311
11/20/20257447 S SOUTH SHORE DRSouth Shore7Completed1 dayPhone CallCity 311
9/15/20267447 N HOYNE AVERogers Park49Completed9 daysMobile DeviceCity 311
8/29/20267447 N ARTESIAN AVEWest Ridge50Completed11 daysPhone CallCity 311
8/19/20257445 S ELLIS AVEGreater Grand Crossing6Completed7 daysPhone CallCity 311
9/18/20257445 N OCTAVIA AVEEdison Park41Completed12 daysInternetCity 311
5/6/20267445 N CAMPBELL AVEWest Ridge50Completed1 dayAlderman's OfficeCity 311
6/25/20267445 N CAMPBELL AVEWest Ridge50Completed4 daysAlderman's OfficeCity 311
6/25/20267445 N CAMPBELLWest Ridge50Completed4 daysSalesforce Mobile AppCity 311
9/8/20257445 N ASHLAND AVERogers Park49Completed10 daysPhone CallCity 311
10/22/20257444 S CHAPPEL AVESouth Shore7Completed5 daysPhone CallCity 311
9/5/20257444 N SEELEY AVERogers Park49Completed13 daysPhone CallCity 311
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