RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4607 locations in the last 30 days (4760 reports) · Last sighting yesterday

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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

54,983 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/26/20251616 N KILBOURN AVEHumboldt Park37Completed6 daysInternetCity 311
8/26/20251616 N KILBOURN AVEHumboldt Park37Completed13 daysInternetCity 311
5/13/20261616 N LUNA AVEAustin37Completed1 dayInternetCity 311
4/1/20261616 N MAYFIELDAustin29Completed1 daySalesforce Mobile AppCity 311
2/20/20261616 N PAULINA STWest Town32Completed3 daysMobile DeviceCity 311
5/30/20261616 N SAWYER AVEHumboldt Park26Completed5 daysInternetCity 311
9/30/20261616 N SPAULDING AVEHumboldt Park26Open—InternetCity 311
8/24/20251616 S ALLPORT STLower West Side25Completed12 daysInternetCity 311
8/12/20261616 S ALLPORT STLower West Side25Completed1 dayInternetCity 311
11/16/20251616 S DESPLAINES STLower West Side25Completed0 daysInternetCity 311
3/18/20261616 S INDIANA AVENear South Side3Completed1 dayInternetCity 311
9/8/20261616 S WASHTENAW AVENorth Lawndale24Completed7 daysInternetCity 311
9/20/20261616 W BALMORAL AVEEdgewater40Completed15 daysInternetCity 311
6/16/20261616 W BALMORAL AVEEdgewater40Completed1 dayInternetCity 311
8/26/20261616 W BALMORAL AVEEdgewater40Completed14 daysMobile DeviceCity 311
12/4/20251616 W BERWYN AVEEdgewater40Completed1 dayPhone CallCity 311
9/2/20261616 W CORNELIA AVELake View47Completed13 daysInternetCity 311
2/18/20261616 W CORNELIA AVELake View47Completed1 dayInternetCity 311
10/22/20251616 W CORNELIA AVELake View47Completed2 daysPhone CallCity 311
3/30/20261616 W EDGEWATER AVEEdgewater40Completed2 daysPhone CallCity 311
3/27/20261616 W EDGEWATER AVEEdgewater40Completed0 daysPhone CallCity 311
6/12/20261616 W JUNEWAY TERRogers Park49Completed5 daysAlderman's OfficeCity 311
4/18/20261616 W WABANSIA AVEWest Town32Completed3 daysMobile DeviceCity 311
1/6/20261617 N ARTESIAN AVEWest Town1Completed1 dayAlderman's OfficeCity 311
1/5/20261617 N ARTESIAN AVEWest Town1Completed2 daysInternetCity 311
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