RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4582 locations in the last 30 days (4741 reports) · Last sighting 12 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.

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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

53,552 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/27/20255541 N CALIFORNIA AVELincoln Square40Completed9 daysInternetCity 311
9/27/20252516 W FOSTER AVELincoln Square40Completed9 daysInternetCity 311
3/12/20265249 N DAMEN AVELincoln Square40Completed4 daysMobile DeviceCity 311
3/12/20264743 N MAPLEWOOD AVELincoln Square40Completed4 daysInternetCity 311
8/31/20262352 W WILSON AVELincoln Square47Completed15 daysMobile DeviceCity 311
9/17/20252714 W FARRAGUT AVELincoln Square40Completed8 daysInternetCity 311
8/17/20264430 N CAMPBELL AVELincoln Square47Completed11 daysMobile DeviceCity 311
1/31/20265414 N CAMPBELL AVELincoln Square40Completed2 daysMobile DeviceCity 311
9/4/20252521 W BERWYN AVELincoln Square40Completed13 daysInternetCity 311
3/12/20264414 N ARTESIAN AVELincoln Square47Completed1 dayAlderman's OfficeCity 311
9/16/20252542 W EASTWOOD AVELincoln Square47Completed9 daysInternetCity 311
9/16/20255419 N ARTESIAN AVELincoln Square40Completed9 daysInternetCity 311
6/19/20264421 N WINCHESTER AVELincoln Square47Completed4 daysInternetCity 311
9/16/20255417 N ARTESIAN AVELincoln Square40Completed9 daysMobile DeviceCity 311
9/26/20254857 N ROCKWELL STLincoln Square40Completed10 daysMobile DeviceCity 311
9/11/20254833 N WOLCOTT AVELincoln Square47Completed7 daysInternetCity 311
9/14/20265120 N WOLCOTT AVELincoln Square40Completed11 daysMobile DeviceCity 311
9/17/20255421 N ARTESIAN AVELincoln Square40Completed9 daysMobile DeviceCity 311
11/16/20251922 W SUNNYSIDE AVELincoln Square47Completed1 dayMobile DeviceCity 311
8/19/20262646 W CATALPA AVELincoln Square40Completed12 daysInternetCity 311
11/25/20252716 W GREGORY STLincoln Square40Completed1 dayInternetCity 311
9/8/20252818 W RASCHER AVELincoln Square39Completed10 daysPhone CallCity 311
9/24/20254819 N OAKLEY AVELincoln Square47Completed9 daysAlderman's OfficeCity 311
11/25/20255250 N ROCKWELL STLincoln Square40Completed1 dayMobile DeviceCity 311
8/26/20264711 N MAPLEWOOD AVELincoln Square40Completed1 dayInternetCity 311
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