RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4387 locations in the last 30 days (4542 reports) · Last sighting 24 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

53,341 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/22/20263835 N MARSHFIELD AVELake View47Completed5 daysPhone CallCity 311
5/23/20263401 N MARSHFIELD AVELake View47Completed4 daysInternetCity 311
3/4/20263909 N SEELEY AVENorth Center47Completed1 dayInternetCity 311
8/10/20261641 W ADDISON STLake View47Completed8 daysAlderman's OfficeCity 311
9/21/20261421 W ARGYLE STUptown47Completed1 dayPhone CallCity 311
5/25/20261603 W BERTEAU AVELake View47Completed2 daysInternetCity 311
5/29/20263713 N ASHLAND AVELake View47Completed4 daysInternetCity 311
11/7/20252423 W BELLE PLAINE AVENorth Center47Completed5 daysInternetCity 311
5/30/20264019 N GREENVIEW AVELake View47Completed3 daysPhone CallCity 311
7/27/20262632 W EASTWOOD AVELincoln Square47Completed11 daysInternetCity 311
8/18/20264918 N WINCHESTER AVELincoln Square47Completed10 daysInternetCity 311
4/21/20261800 W LARCHMONT AVENorth Center47Completed1 dayPhone CallCity 311
7/20/20262137 W CUYLER AVENorth Center47Completed11 daysPhone CallCity 311
9/17/20263730 N OAKLEY AVENorth Center47Open—InternetCity 311
9/10/20261455 W CUYLER AVELake View47Completed12 daysInternetCity 311
9/11/20264553 N WOLCOTT AVELincoln Square47Completed11 daysPhone CallCity 311
7/26/20264915 N WINCHESTER AVELincoln Square47Completed12 daysMobile DeviceCity 311
4/15/20261345 W CARMEN AVEUptown47Completed2 daysInternetCity 311
4/15/20264943 N WINCHESTER AVELincoln Square47Completed2 daysInternetCity 311
7/27/20254533 N HERMITAGE AVEUptown47Completed9 daysMobile DeviceCity 311
4/15/20261433 W FOSTER AVEUptown47Completed2 daysPhone CallCity 311
4/16/20263643 N BOSWORTH AVELake View47Completed1 dayMobile DeviceCity 311
9/22/20264220 N WINCHESTER AVENorth Center47Open—Phone CallCity 311
2/18/20264048 N WESTERN AVENorth Center47Completed1 dayInternetCity 311
4/17/20264455 N HERMITAGE AVEUptown47Completed3 daysInternetCity 311
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