RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4564 locations in the last 30 days (4716 reports) · Last sighting 15 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

54,350 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/18/20259123 S YATES AVECalumet Heights7Completed7 daysAlderman's OfficeCity 311
8/18/20253415 N CLAREMONT AVENorth Center32Completed14 daysMobile DeviceCity 311
8/18/202510945 S PULASKI RDMount Greenwood19Completed10 daysInternetCity 311
8/18/20252314 W ROSCOE STNorth Center32Completed14 daysMobile DeviceCity 311
8/18/20252548 E 79TH STSouth Shore7Completed1 dayAlderman's OfficeCity 311
8/18/20251740 W COLUMBIA AVERogers Park49Completed15 daysInternetCity 311
8/18/20252940 N KENNETH AVEHermosa31Completed10 daysInternetCity 311
8/18/20253835 N KENMORE AVELake View46Completed14 daysInternetCity 311
8/19/202510734 S HOMAN AVEMount Greenwood19Completed9 daysMobile DeviceCity 311
8/19/20252021 W ARMITAGE AVELogan Square32Completed14 daysInternetCity 311
8/19/2025723 N ADA STWest Town27Completed1 dayPhone CallCity 311
8/19/20254039 N SACRAMENTO AVEIrving Park33Completed9 daysInternetCity 311
8/19/20255255 W BARRY AVEBelmont Cragin31Completed10 daysInternetCity 311
8/19/20257132 S EMERALD AVEEnglewood6Completed7 daysPhone CallCity 311
8/19/20259731 S FOREST AVERoseland9Completed3 daysPhone CallCity 311
8/19/2025933 W 32ND STBridgeport11Completed1 dayPhone CallCity 311
8/19/2025747 W WRIGHTWOOD AVELincoln Park43Completed14 daysMobile DeviceCity 311
8/19/20253538 W AINSLIE STAlbany Park33Completed9 daysInternetCity 311
8/19/20257754 S MARSHFIELD AVEAuburn Gresham17Completed1 dayPhone CallCity 311
8/19/20254364 S EMERALD AVENew City15Completed1 dayPhone CallCity 311
8/19/20258232 S MARSHFIELD AVEAuburn Gresham17Completed1 dayPhone CallCity 311
8/19/20254040 N LECLAIRE AVEPortage Park38Completed1 dayPhone CallCity 311
8/19/20253311 N PANAMA AVEDunning38Completed1 dayPhone CallCity 311
8/19/20252748 W WINNEMAC AVELincoln Square40Completed1 dayPhone CallCity 311
8/19/20252705 W CARMEN AVELincoln Square40Completed1 dayPhone CallCity 311
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