RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4335 locations in the last 30 days (4494 reports) · Last sighting 2 days 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

52,482 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/27/20259860 S CALHOUN AVESouth Deering7Completed14 daysPhone CallCity 311
9/17/20269859 S COMMERCIAL AVESouth Deering10Open—Alderman's OfficeCity 311
7/9/20269859 S COMMERCIAL AVESouth Deering10Completed8 daysMobile DeviceCity 311
1/20/20269859 S COMMERCIAL AVESouth Deering10Completed1 dayAlderman's OfficeCity 311
6/30/20269858 S FOREST AVERoseland9Completed8 daysInternetCity 311
10/13/20259858 S FOREST AVERoseland9Completed2 daysInternetCity 311
8/26/20269855 S PRAIRIE AVERoseland9Completed9 daysPhone CallCity 311
8/11/20269854 S MANISTEE AVESouth Deering10Completed13 daysInternetCity 311
10/14/20259845 S MICHIGAN AVERoseland9Completed8 daysPhone CallCity 311
1/28/20269844 S THROOP STWashington Heights21Completed1 dayPhone CallCity 311
9/28/20259843 S WESTERN AVEBeverly19Completed9 daysInternetCity 311
3/3/20269841 S EWING AVEEast Side10Completed1 dayInternetCity 311
9/5/20259840 S ESCANABA AVESouth Deering10Completed14 daysMobile DeviceCity 311
8/15/20259833 S CALHOUN AVESouth Deering7Completed7 daysAlderman's OfficeCity 311
10/8/20259831 S WESTERN AVEBeverly19Completed6 daysInternetCity 311
8/22/20259831 S WESTERN AVEBeverly19Completed12 daysInternetCity 311
8/13/20269828 S AVENUE JEast Side10Completed14 daysWalk-inCity 311
2/4/20269828 S AVENUE JEast Side10Completed1 dayPhone CallCity 311
6/19/20269824 S MICHIGAN AVERoseland9Completed4 daysPhone CallCity 311
11/6/20259824 S GENOA AVEWashington Heights21Completed1 dayPhone CallCity 311
2/4/20269821 S WINCHESTER AVEBeverly19Completed1 dayPhone CallCity 311
7/9/20269820 S CHARLES STBeverly19Completed1 dayMobile DeviceCity 311
9/10/20259818 S GENOA AVEWashington Heights21Completed12 daysPhone CallCity 311
10/2/20259816 S EMERALD AVEWashington Heights21Completed6 daysPhone CallCity 311
3/9/20269816 S EMERALD AVEWashington Heights21Completed2 daysPhone CallCity 311
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