RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4371 locations in the last 30 days (4536 reports) · Last sighting 18 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

57,594 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/2/20255427 N MAGNET AVEJefferson Park45Completed8 daysPhone CallCity 311
7/25/20255427 N LINDER AVEJefferson Park45Completed7 daysMobile DeviceCity 311
6/2/20265426 W WALTON STAustin37Completed3 daysAlderman's OfficeCity 311
9/9/20255426 S MARSHFIELD AVENew City16Completed10 daysPhone CallCity 311
10/6/20255426 S LOCKWOOD AVEGarfield Ridge23Completed3 daysAlderman's OfficeCity 311
8/22/20265426 S BISHOP STNew City16Completed10 daysPhone CallCity 311
5/7/20265426 N WESTERN AVELincoln Square40Completed1 dayInternetCity 311
8/27/20265425 W POTOMAC AVEAustin37Completed14 daysPhone CallCity 311
10/14/20265425 W POTOMAC AVEAustin37Open—Phone CallCity 311
8/9/20265425 W HUTCHINSON STPortage Park38Completed15 daysInternetCity 311
1/7/20265425 S WOLCOTT AVENew City16Completed1 dayInternetCity 311
5/30/20265425 S OAK PARK AVEGarfield Ridge23Completed3 daysPhone CallCity 311
9/27/20265425 S NORDICA AVEGarfield Ridge23Completed16 daysInternetCity 311
8/29/20255425 S NEW ENGLAND AVEGarfield Ridge23Completed14 daysMobile DeviceCity 311
9/2/20265425 S KARLOV AVEWest Elsdon23Completed14 daysInternetCity 311
7/28/20255425 S CLAREMONT AVEGage Park16Completed9 daysInternetCity 311
9/30/20265425 S ALBANY AVEGage Park14Completed13 daysMobile DeviceCity 311
8/11/20255425 N LINDER AVEJefferson Park45Completed1 dayPhone CallCity 311
8/21/20265424 W BERTEAU AVEPortage Park38Completed11 daysPhone CallCity 311
8/12/20255424 W 64TH STClearing13Completed15 daysAlderman's OfficeCity 311
4/24/20265424 W 64TH STClearing13Completed3 daysInternetCity 311
4/1/20265424 W 64TH STClearing13Completed1 dayInternetCity 311
4/6/20265424 W 64TH STClearing13Completed1 dayInternetCity 311
3/6/20265424 W 64TH STClearing13Completed3 daysInternetCity 311
9/18/20255424 W 64TH STClearing13Completed12 daysInternetCity 311
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