RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4540 locations in the last 30 days (4706 reports) · Last sighting 11 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

57,418 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/23/202522 W ERIE STNear North Side42Completed3 daysInternetCity 311
5/26/20262300 E 75TH STSouth Shore7Completed3 daysInternetCity 311
9/13/20262300 N HARDING AVELogan Square35Completed8 daysMobile DeviceCity 311
1/19/20262300 N HOYNE AVELogan Square32Completed1 dayInternetCity 311
7/31/20252300 N JANSSEN AVELincoln Park2Completed11 daysAlderman's OfficeCity 311
10/6/20252300 N KARLOVHermosa35Completed9 daysSalesforce Mobile AppCity 311
9/16/20262300 N KARLOV AVEHermosa35Completed5 daysPhone CallCity 311
7/2/20262300 N KEELER AVEHermosa31Completed8 daysAlderman's OfficeCity 311
7/13/20262300 N KILDARE AVEHermosa31Completed3 daysAlderman's OfficeCity 311
7/9/20262300 N KILDARE AVEHermosa31Completed7 daysInternetCity 311
1/14/20262300 N LAKEWOOD AVELincoln Park2Completed1 dayAlderman's OfficeCity 311
9/21/20252300 N MAJOR AVEBelmont Cragin36Completed10 daysInternetCity 311
7/16/20262300 N MONTICELLO AVELogan Square35Completed8 daysAlderman's OfficeCity 311
8/14/20262300 N ORCHARDLincoln Park43Completed13 daysSalesforce Mobile AppCity 311
8/5/20252300 N PARKSIDE AVEBelmont Cragin36Completed15 daysPhone CallCity 311
4/24/20262300 S CENTRAL PARK AVESouth Lawndale22Completed3 daysMobile DeviceCity 311
6/23/20262300 S DRAKE AVESouth Lawndale22Completed2 daysMobile DeviceCity 311
1/13/20262300 S MICHIGAN AVENear South Side3Completed1 dayPhone CallCity 311
3/6/20262300 S WHIPPLE STSouth Lawndale25Completed3 daysPhone CallCity 311
8/12/20252300 W 18TH PLLower West Side25Completed14 daysAlderman's OfficeCity 311
7/31/20262300 W 47TH PLNew City15Completed19 daysAlderman's OfficeCity 311
1/23/20262300 W 47TH PLNew City15Completed3 daysPhone CallCity 311
7/31/20262300 W 47TH STNew City12Completed10 daysPhone CallCity 311
6/29/20262300 W 48TH PLNew City15Completed3 daysPhone CallCity 311
6/29/20262300 W 48TH STNew City15Completed7 daysPhone CallCity 311
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