RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4385 locations in the last 30 days (4540 reports) · Last sighting yesterday

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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
6/30/20263724 N BELL AVENorth Center47Completed9 daysMobile DeviceCity 311
2/11/20262153 W WARNER AVENorth Center47Completed1 dayMobile DeviceCity 311
7/1/20261942 W GRACE STNorth Center47Completed8 daysPhone CallCity 311
7/1/20264347 N HERMITAGE AVELake View47Completed8 daysInternetCity 311
3/4/20264415 N CAMPBELL AVELincoln Square47Completed1 dayMobile DeviceCity 311
2/20/20264739 N LINCOLN AVELincoln Square47Completed3 daysInternetCity 311
8/19/20263438 N PAULINA STLake View47Completed14 daysMobile DeviceCity 311
3/4/20261620 W ADDISON STLake View47Completed1 dayAlderman's OfficeCity 311
12/19/20254024 N LINCOLN AVENorth Center47Completed3 daysInternetCity 311
8/11/20262424 W IRVING PARK RDNorth Center47Completed15 daysPhone CallCity 311
6/30/20263919 N OAKLEY AVENorth Center47Completed9 daysInternetCity 311
9/8/20252440 W DAKIN STNorth Center47Completed10 daysInternetCity 311
7/29/20261838 W WARNER AVENorth Center47Completed12 daysPhone CallCity 311
9/7/20252721 W LELAND AVELincoln Square47Completed11 daysMobile DeviceCity 311
7/29/20264743 N PAULINA STUptown47Completed12 daysPhone CallCity 311
9/27/20262212 W EASTWOOD AVELincoln Square47Open—InternetCity 311
9/8/20251920 W WARNER AVENorth Center47Completed10 daysInternetCity 311
5/26/20262241 W AINSLIE STLincoln Square47Completed2 daysInternetCity 311
7/13/20261910 W PATTERSON AVENorth Center47Completed11 daysInternetCity 311
8/7/20263843 N CLAREMONT AVENorth Center47Completed13 daysInternetCity 311
7/24/20263641 N ASHLAND AVELake View47Completed13 daysInternetCity 311
7/28/20263626 N ASHLAND AVELake View47Completed9 daysPhone CallCity 311
9/1/20263856 N CLAREMONT AVENorth Center47Completed15 daysInternetCity 311
5/26/20264857 N OAKLEY AVELincoln Square47Completed2 daysInternetCity 311
5/22/20261941 W WARNERNorth Center47Completed5 daysSalesforce Mobile AppCity 311
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