RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4437 locations in the last 30 days (4593 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.

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

56,073 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/31/20262200 W 50TH STGage Park15Completed19 daysAlderman's OfficeCity 311
7/31/20262300 W 50TH STGage Park15Completed19 daysAlderman's OfficeCity 311
7/31/20262100 W 49TH PLNew City15Completed19 daysAlderman's OfficeCity 311
7/31/20263228 N OSAGE AVEDunning38Completed18 daysAlderman's OfficeCity 311
7/31/20262100 W 49TH STNew City12Completed10 daysAlderman's OfficeCity 311
7/31/20262300 W 48TH STNew City15Completed19 daysAlderman's OfficeCity 311
7/31/20262320 N PARKSIDE AVEBelmont Cragin36Completed12 daysAlderman's OfficeCity 311
7/31/20262300 W 47TH PLNew City15Completed19 daysAlderman's OfficeCity 311
7/31/20264008 N MCVICKER AVEPortage Park38Completed17 daysInternetCity 311
7/31/20262300 W 47TH STNew City12Completed10 daysPhone CallCity 311
7/31/20262326 N PARKSIDE AVEBelmont Cragin36Completed12 daysAlderman's OfficeCity 311
7/31/20262328 N PARKSIDE AVEBelmont Cragin36Completed12 daysPhone CallCity 311
7/31/20263600 W 26TH STSouth Lawndale22Completed11 daysPhone CallCity 311
7/31/20262936 N HOYNE AVENorth Center32Completed10 daysPhone CallCity 311
7/31/20262730 N WILTON AVELincoln Park43Completed11 daysPhone CallCity 311
7/31/20262732 N WILTON AVELincoln Park43Completed11 daysPhone CallCity 311
7/31/20265030 N MANGO AVEJefferson Park45Completed6 daysInternetCity 311
7/31/202610949 S ST LOUIS AVEMount Greenwood19Completed10 daysPhone CallCity 311
7/31/20264100 W 21ST STNorth Lawndale24Completed6 daysAlderman's OfficeCity 311
7/31/20261700 W 48TH STNew City15Completed19 daysAlderman's OfficeCity 311
7/31/20261800 W 48TH STNew City15Completed19 daysAlderman's OfficeCity 311
7/31/20261900 W 48TH STNew City15Completed19 daysAlderman's OfficeCity 311
7/31/20261701 W 47TH STNew City15Completed19 daysAlderman's OfficeCity 311
7/31/20261901 W 47TH STNew City15Completed19 daysAlderman's OfficeCity 311
7/31/20262001 W 47TH STNew City15Completed19 daysAlderman's OfficeCity 311
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