RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4404 locations in the last 30 days (4571 reports) · Last sighting 11 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
5/26/20265439 S KOLIN AVEWest Elsdon23Completed3 daysMobile DeviceCity 311
7/13/20265439 S KEDVALE AVEWest Elsdon23Completed7 daysPhone CallCity 311
9/10/20255439 N NEWLAND AVENorwood Park41Completed7 daysMobile DeviceCity 311
10/23/20255439 N ARTESIAN AVELincoln Square40Completed7 daysPhone CallCity 311
8/29/20255439 N ARTESIAN AVELincoln Square40Completed5 daysPhone CallCity 311
4/9/20265438 S UNION AVENew City16Completed1 dayPhone CallCity 311
5/12/20265438 S UNION AVENew City16Completed1 dayPhone CallCity 311
7/20/20265438 S LONG AVEGarfield Ridge23Completed7 daysInternetCity 311
8/6/20265438 S LONG AVEGarfield Ridge23Completed8 daysPhone CallCity 311
9/22/20265438 S KOSTNER AVEWest Elsdon23Completed10 daysPhone CallCity 311
9/14/20265438 S KOMENSKY AVEWest Elsdon23Completed10 daysMobile DeviceCity 311
2/26/20265438 S KOMENSKY AVEWest Elsdon23Completed1 dayMobile DeviceCity 311
11/24/20255438 S KOMENSKY AVEWest Elsdon23Completed7 daysMobile DeviceCity 311
5/11/20265438 S ARCHER AVEGarfield Ridge23Completed2 daysInternetCity 311
8/3/20265438 N NEWLAND AVENorwood Park41Completed17 daysMobile DeviceCity 311
7/5/20265438 N NEWLAND AVENorwood Park41Completed8 daysMobile DeviceCity 311
10/29/20255438 N CHRISTIANA AVENorth Park39Completed5 daysPhone CallCity 311
10/10/20265437 W WARWICK AVEPortage Park30Completed13 daysMobile DeviceCity 311
7/22/20255437 W WARWICK AVEPortage Park30Completed10 daysMobile DeviceCity 311
8/31/20265437 W QUINCY STAustin29Completed4 daysPhone CallCity 311
7/27/20265437 W QUINCY STAustin29Completed4 daysPhone CallCity 311
9/21/20265437 W QUINCY STAustin29Completed16 daysPhone CallCity 311
7/14/20265437 W QUINCY STAustin29Completed9 daysPhone CallCity 311
8/20/20255437 W QUINCY STAustin29Completed7 daysPhone CallCity 311
10/24/20265437 W QUINCY STAustin29Open—InternetCity 311
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