RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4487 locations in the last 30 days (4654 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.

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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

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/23/20261058 N PAULINA STWest Town1Completed13 daysPhone CallCity 311
9/15/20261654 1/2 N ARTESIAN AVEWest Town1Canceled3 daysMobile DeviceCity 311
8/6/20251447 N CAMPBELL AVEWest Town1Completed9 daysMobile DeviceCity 311
6/6/20261361 N LEAVITT STWest Town1Completed4 daysInternetCity 311
9/26/20251517 W PEARSON STWest Town1Completed5 daysInternetCity 311
8/6/20261271 N HONORE STWest Town1Completed13 daysPhone CallCity 311
11/23/20251100 N DAMEN AVEWest Town1Completed3 daysInternetCity 311
3/20/20261411 N LEAVITT STWest Town1Completed3 daysInternetCity 311
9/30/20251701 N MAPLEWOOD AVEWest Town1Completed9 daysInternetCity 311
3/10/20261400 N HOYNE AVEWest Town1Completed2 daysInternetCity 311
9/29/20252432 N CALIFORNIA AVELogan Square1Completed9 daysMobile DeviceCity 311
8/16/20261831 N FAIRFIELD AVELogan Square1Completed10 daysInternetCity 311
10/3/20252950 W PALMER SQLogan Square1Completed6 daysPhone CallCity 311
10/5/20251518 N ARTESIAN AVEWest Town1Completed5 daysMobile DeviceCity 311
10/4/20251512 W CHICAGO AVEWest Town1Completed5 daysMobile DeviceCity 311
9/17/20262143 W CRYSTAL STWest Town1Open—Mobile DeviceCity 311
10/4/20251607 W LE MOYNE STWest Town1Completed6 daysInternetCity 311
3/10/20262512 W MEDILL AVELogan Square1Completed2 daysInternetCity 311
8/4/20261804 W HADDON AVEWest Town1Completed13 daysMobile DeviceCity 311
8/13/20262507 N FRANCISCO AVELogan Square1Completed13 daysInternetCity 311
12/5/20252646 N TALMAN AVELogan Square1Completed2 daysInternetCity 311
5/28/20261542 W FRY STWest Town1Completed5 daysInternetCity 311
7/15/20262704 W MEDILL AVELogan Square1Completed14 daysAlderman's OfficeCity 311
7/29/20262526 N CAMPBELL AVELogan Square1Completed8 daysInternetCity 311
3/10/20261035 N PAULINA STWest Town1Completed2 daysPhone CallCity 311
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