RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4541 locations in the last 30 days (4688 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

1,102 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/9/2026844 W WAVELAND AVELake View46Open—Phone CallCity 311
10/9/20263834 W BERTEAU AVEIrving Park39Open—InternetCity 311
10/9/20265435 N ARTESIAN AVELincoln Square40Open—InternetCity 311
10/9/20265245 S WHIPPLE STGage Park14Open—InternetCity 311
10/9/20269337 S EVANS AVEChatham8Open—Phone CallCity 311
10/9/20266932 W FOSTER AVENorwood Park41Open—Phone CallCity 311
10/9/20265333 S NATCHEZ AVEGarfield Ridge23Open—Alderman's OfficeCity 311
10/9/20262707 W THOMAS STWest Town36Open—Mobile DeviceCity 311
10/9/20263116 S UNION AVEBridgeport11Open—Phone CallCity 311
10/9/20265955 S THROOP STWest Englewood16Open—Phone CallCity 311
10/9/20261735 W 21ST PLLower West Side25Open—Alderman's OfficeCity 311
10/9/20267040 S CLAREMONT AVEChicago Lawn17Open—Phone CallCity 311
10/9/20265217 S KOLMAR AVEArcher Heights23Open—Phone CallCity 311
10/9/20267151 S VERNON AVEGreater Grand Crossing6Open—Phone CallCity 311
10/9/20264400 N ASHLAND AVEUptown47Open—InternetCity 311
10/9/202610500 S MAPLEWOOD AVEBeverly19Open—Phone CallCity 311
10/9/20267029 W HENDERSON STDunning38Open—Phone CallCity 311
10/9/20262645 N KEDZIE AVELogan Square35Open—Phone CallCity 311
10/9/20263625 N OCTAVIA AVEDunning38Open—Phone CallCity 311
10/9/2026444 W 43RD PLNew City11Open—Alderman's OfficeCity 311
10/9/20263313 N PLAINFIELD AVEDunning38Open—Alderman's OfficeCity 311
10/9/20263641 N NEWCASTLE AVEDunning38Open—Phone CallCity 311
10/9/20263807 N HAMLIN AVEIrving Park30Open—Mobile DeviceCity 311
10/9/20265434 W CARMEN AVEJefferson Park45Open—Phone CallCity 311
10/9/20262306 S KILDARE AVENorth Lawndale22Open—Phone CallCity 311
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