RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4473 locations in the last 30 days (4638 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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/10/2026870 N RICHMOND STWest Town26Completed12 daysPhone CallCity 311
9/3/2025870 N RICHMOND STWest Town26Completed12 daysAlderman's OfficeCity 311
8/18/2026870 N RICHMOND STWest Town26Completed14 daysAlderman's OfficeCity 311
9/15/2025870 N RICHMOND STWest Town26Completed11 daysAlderman's OfficeCity 311
8/19/2025870 N ORLEANS STNear North Side2Completed8 daysMobile DeviceCity 311
10/7/2025870 N ORLEANS STNear North Side2Completed3 daysMobile DeviceCity 311
9/15/20258709 S THROOP STAuburn Gresham21Completed10 daysAlderman's OfficeCity 311
5/20/20268706 S COMMERCIAL AVESouth Chicago10Completed2 daysInternetCity 311
7/20/20268702 S COMMERCIAL AVESouth Chicago10Completed3 daysAlderman's OfficeCity 311
9/15/20258701 W HIGGINS RDO'Hare41Completed10 daysInternetCity 311
10/1/20258700 S HERMITAGE AVEAuburn Gresham18Completed8 daysAlderman's OfficeCity 311
9/23/20268700 S HERMITAGE AVEAuburn Gresham18Open—Alderman's OfficeCity 311
3/25/20268700 S ABERDEEN STAuburn Gresham21Completed1 dayPhone CallCity 311
5/5/2026869 N MOZART STWest Town36Completed1 dayInternetCity 311
9/6/2025869 N MOZART STWest Town36Completed11 daysInternetCity 311
11/28/2025868 N SACRAMENTO AVEHumboldt Park36Completed3 daysInternetCity 311
7/1/2026868 N FRANKLIN STNear North Side27Completed5 daysPhone CallCity 311
4/5/2026867 W ROSCOE STLake View44Completed1 dayInternetCity 311
9/9/2025867 W BUCKINGHAM PLLake View44Completed13 daysAlderman's OfficeCity 311
6/22/2026867 W BUCKINGHAM PLLake View44Completed3 daysInternetCity 311
5/20/2026866 N PAULINA STWest Town1Completed6 daysMobile DeviceCity 311
9/21/2026865 W CORNELIA AVELake View44Open—Mobile DeviceCity 311
9/19/2025865 N LAKE SHORE DR NBNear North Side2Completed10 daysMobile DeviceCity 311
10/3/2025865 N LAKE SHORE DR NBNear North Side2Completed7 daysInternetCity 311
6/14/2026865 N HERMITAGE AVEWest Town1Completed2 daysInternetCity 311
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