RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4614 locations in the last 30 days (4770 reports) · Last sighting 21 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

53,915 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/19/20261305 W GLENLAKE AVEEdgewater48Completed5 daysPhone CallCity 311
5/26/20261306 N CAMPBELL AVEWest Town26Completed1 dayAlderman's OfficeCity 311
8/4/20251306 N MAPLEWOOD AVEWest Town26Completed8 daysInternetCity 311
1/13/20261306 N SPRINGFIELD AVEHumboldt Park36Completed2 daysInternetCity 311
10/18/20251306 N SPRINGFIELD AVEHumboldt Park36Completed6 daysInternetCity 311
9/17/20251306 S INDEPENDENCE BLVDNorth Lawndale24Completed8 daysPhone CallCity 311
4/2/20261306 S SPRINGFIELD AVENorth Lawndale24Completed0 daysInternetCity 311
5/25/20261306 S THROOP STNear West Side28Completed0 daysPhone CallCity 311
4/28/20261306 S THROOP STNear West Side28Completed3 daysPhone CallCity 311
8/15/20251306 W 72ND PLWest Englewood17Completed7 daysPhone CallCity 311
8/7/20251306 W NEWPORT AVELake View44Completed13 daysInternetCity 311
5/16/20261307 N ARTESIAN AVEWest Town26Completed3 daysMobile DeviceCity 311
7/29/20251307 N ARTESIAN AVEWest Town26Completed8 daysMobile DeviceCity 311
9/1/20251307 N ARTESIAN AVEWest Town26Completed14 daysMobile DeviceCity 311
9/7/20261307 N LAWNDALE AVEHumboldt Park26Completed14 daysPhone CallCity 311
9/10/20261307 N LAWNDALE AVEHumboldt Park26Completed12 daysPhone CallCity 311
7/19/20261307 S CALIFORNIA BLVDNorth Lawndale28Completed9 daysMobile DeviceCity 311
6/15/20261307 S HARDING AVENorth Lawndale24Completed3 daysMobile DeviceCity 311
3/7/20261307 S KOMENSKY AVENorth Lawndale24Completed2 daysMobile DeviceCity 311
7/19/20261307 S SPAULDING AVENorth Lawndale24Completed8 daysMobile DeviceCity 311
8/2/20261307 S WESTERN AVENear West Side28Completed2 daysMobile DeviceCity 311
8/5/20261307 W BYRON STLake View44Completed14 daysPhone CallCity 311
8/26/20261307 W COLUMBIA AVERogers Park49Completed14 daysAlderman's OfficeCity 311
9/11/20251307 W ERIE STWest Town1Completed11 daysInternetCity 311
9/23/20261307 W ROSEMONT AVEEdgewater48Completed2 daysMobile DeviceCity 311
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