RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4482 locations in the last 30 days (4647 reports) · Last sighting 23 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
2/21/202610353 S WHIPPLE STMount Greenwood19Completed2 daysInternetCity 311
8/2/202510354 S CALUMET AVERoseland9Completed4 daysPhone CallCity 311
8/12/202610359 S TORRENCE AVESouth Deering10Completed12 daysInternetCity 311
8/12/202610359 S TORRENCE AVESouth Deering10Completed12 daysMobile DeviceCity 311
8/18/20251035 N CENTRAL PARK AVEHumboldt Park27Completed11 daysInternetCity 311
5/29/20261035 N MARSHFIELD AVEWest Town1Completed4 daysMobile DeviceCity 311
4/7/20261035 N PAULINA STWest Town1Completed1 dayPhone CallCity 311
3/10/20261035 N PAULINA STWest Town1Completed2 daysPhone CallCity 311
8/17/20261035 N RIDGEWAY AVEHumboldt Park27Completed4 daysMobile DeviceCity 311
2/25/20261035 W ALTGELD STLincoln Park43Completed1 dayInternetCity 311
8/5/20251035 W BELDEN AVELincoln Park43Completed10 daysInternetCity 311
10/1/20251035 W BELDEN AVELincoln Park43Completed7 daysInternetCity 311
6/15/20261035 W LILL AVELincoln Park43Completed1 dayInternetCity 311
1/9/20261035 W LILL AVELincoln Park43Completed3 daysInternetCity 311
7/25/202610364 S DRAKE AVEMount Greenwood19Completed5 daysPhone CallCity 311
8/13/20251036 N CALIFORNIA AVEWest Town26Completed7 daysMobile DeviceCity 311
1/16/20261036 N LAWNDALE AVEHumboldt Park27Completed4 daysMobile DeviceCity 311
9/30/20251036 N MARSHFIELD AVEWest Town1Completed9 daysMobile DeviceCity 311
8/12/20251036 N MARSHFIELD AVEWest Town1Completed7 daysMobile DeviceCity 311
3/26/20261036 N PULASKI RDHumboldt Park37Completed1 dayPhone CallCity 311
9/8/20261036 N ST LOUIS AVEHumboldt Park36Completed13 daysPhone CallCity 311
9/22/20261036 W 69TH STEnglewood16Open—Alderman's OfficeCity 311
9/20/20251036 W LOYOLA AVERogers Park49Completed11 daysInternetCity 311
5/6/20261036 W POLK STNear West Side34Completed0 daysPhone CallCity 311
3/24/20261037 N LARAMIE AVEAustin37Completed1 dayPhone CallCity 311
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