RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4232 locations in the last 30 days (4385 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

56,467 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/17/20256804 S ROCKWELL STChicago Lawn16Completed1 dayPhone CallCity 311
11/17/20256417 S OAKLEY AVEChicago Lawn16Completed1 dayAlderman's OfficeCity 311
10/1/20265737 S BISHOP STWest Englewood16Completed13 daysInternetCity 311
11/15/20256159 S WASHTENAW AVEChicago Lawn16Completed3 daysMobile DeviceCity 311
4/8/20266947 S PEORIA STEnglewood16Completed1 dayAlderman's OfficeCity 311
10/8/20266041 S DAMEN AVEWest Englewood16Completed6 daysPhone CallCity 311
4/8/20265657 S THROOP STWest Englewood16Completed1 dayPhone CallCity 311
4/8/20266158 S ASHLAND AVEWest Englewood16Completed1 dayPhone CallCity 311
4/8/20266129 S CAMPBELL AVEChicago Lawn16Completed1 dayAlderman's OfficeCity 311
8/9/20266628 S SANGAMON STEnglewood16Completed9 daysPhone CallCity 311
8/9/20267014 S SANGAMON STEnglewood16Completed9 daysMobile DeviceCity 311
11/3/20255955 S THROOP STWest Englewood16Completed1 dayAlderman's OfficeCity 311
4/9/20265438 S UNION AVENew City16Completed1 dayPhone CallCity 311
11/14/20256143 S SEELEY AVEWest Englewood16Completed3 daysPhone CallCity 311
11/14/20256104 S FAIRFIELD AVEChicago Lawn16Completed3 daysPhone CallCity 311
4/9/20261807 W GARFIELD BLVDWest Englewood16Completed1 dayPhone CallCity 311
10/31/20255806 S MARSHFIELD AVEWest Englewood16Completed4 daysPhone CallCity 311
8/6/20256609 S PAULINA STWest Englewood16Completed7 daysPhone CallCity 311
8/6/20256605 S DAMEN AVEWest Englewood16Completed7 daysPhone CallCity 311
11/12/20256551 S CALIFORNIA AVEChicago Lawn16Completed1 dayMobile DeviceCity 311
11/12/20256501 S MAPLEWOOD AVEChicago Lawn16Completed1 dayMobile DeviceCity 311
11/11/20255915 S CAMPBELL AVEChicago Lawn16Completed2 daysMobile DeviceCity 311
11/10/20256941 S ABERDEEN STEnglewood16Completed3 daysPhone CallCity 311
11/10/20256908 S ABERDEEN STEnglewood16Completed3 daysPhone CallCity 311
11/11/20255115 S WOLCOTT AVENew City16Completed2 daysInternetCity 311
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