RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4403 locations in the last 30 days (4565 reports) · Last sighting 18 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

53,243 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/8/20255904 W FOSTER AVEJefferson Park45Completed11 daysPhone CallCity 311
8/8/20254709 N WHIPPLE STAlbany Park33Completed10 daysPhone CallCity 311
8/8/20252750 S TRIPP AVESouth Lawndale22Completed10 daysAlderman's OfficeCity 311
8/8/2025432 N CENTRAL PARK AVEHumboldt Park27Completed12 daysInternetCity 311
8/8/20254737 W MONTANA STBelmont Cragin31Completed13 daysAlderman's OfficeCity 311
8/8/20251121 N AUSTIN AVEAustin29Completed6 daysPhone CallCity 311
8/8/20253657 W 70TH STWest Lawn23Completed14 daysAlderman's OfficeCity 311
8/8/20253616 N OCONTO AVEDunning38Completed12 daysPhone CallCity 311
8/8/2025267 W 22ND PLArmour Square11Completed4 daysPhone CallCity 311
8/8/20256023 N MASON AVEJefferson Park39Completed7 daysInternetCity 311
8/8/20258200 S SPRINGFIELD AVEAshburn18Completed6 daysAlderman's OfficeCity 311
8/8/20253520 N HAMILTON AVENorth Center32Completed12 daysMobile DeviceCity 311
8/8/20253513 S EMERALD AVEBridgeport11Completed5 daysInternetCity 311
8/8/20253857 W 82ND STAshburn18Completed6 daysAlderman's OfficeCity 311
8/8/20253511 S EMERALD AVEBridgeport11Completed5 daysInternetCity 311
8/8/20253337 S EMERALD AVEBridgeport11Completed5 daysInternetCity 311
8/8/20253857 W 82ND PLAshburn18Completed7 daysAlderman's OfficeCity 311
8/8/20254118 N AUSTIN AVEPortage Park38Completed12 daysMobile DeviceCity 311
8/8/20253434 S LOWE AVEBridgeport11Completed5 daysInternetCity 311
8/8/20251471 W ERIE STWest Town1Completed11 daysMobile DeviceCity 311
8/8/2025749 N NOBLE STWest Town27Completed12 daysInternetCity 311
8/8/20258538 S KARLOV AVEAshburn18Completed6 daysAlderman's OfficeCity 311
8/8/202510511 S PULASKI RDMount Greenwood19Completed11 daysPhone CallCity 311
8/8/20253431 W HARRISON STEast Garfield Park24Completed6 daysMobile DeviceCity 311
8/8/20255156 S WABASH AVEWashington Park3Completed5 daysAlderman's OfficeCity 311
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