RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4638 locations in the last 30 days (4794 reports) · Last sighting 19 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

55,690 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/15/202513107 S AVENUE NHegewisch10Completed4 daysAlderman's OfficeCity 311
9/15/20255817 W NEWPORT AVEPortage Park30Completed9 daysAlderman's OfficeCity 311
9/15/20253500 W 60TH STChicago Lawn14Completed10 daysPhone CallCity 311
9/15/20253912 N GREENVIEW AVELake View46Completed9 daysInternetCity 311
9/15/20252917 N LOWELL AVEHermosa31Completed10 daysInternetCity 311
9/15/20253417 S RACINE AVEBridgeport11Completed10 daysInternetCity 311
9/15/20252415 W LUNT AVEWest Ridge40Completed8 daysInternetCity 311
9/15/20253339 N PULASKI RDAvondale30Completed10 daysPhone CallCity 311
9/15/20254544 S FRANCISCO AVEBrighton Park12Completed11 daysPhone CallCity 311
9/15/20253400 N OZARK AVEDunning38Completed11 daysInternetCity 311
9/15/20258549 S OGLESBY AVESouth Chicago8Completed10 daysAlderman's OfficeCity 311
9/15/20251703 E 84TH STAvalon Park8Completed10 daysAlderman's OfficeCity 311
9/15/20254905 W ARGYLE STForest Glen45Completed10 daysPhone CallCity 311
9/15/20257337 N HONORE STRogers Park49Completed9 daysPhone CallCity 311
9/15/20258709 S THROOP STAuburn Gresham21Completed10 daysAlderman's OfficeCity 311
9/15/20255125 W NELSON STBelmont Cragin31Completed10 daysInternetCity 311
9/15/20254309 N MASON AVEPortage Park38Completed10 daysMobile DeviceCity 311
9/15/20251745 W WALLEN AVERogers Park49Completed9 daysInternetCity 311
9/15/20258701 W HIGGINS RDO'Hare41Completed10 daysInternetCity 311
9/15/20251542 N AVERS AVEHumboldt Park26Completed11 daysPhone CallCity 311
9/15/20258101 W HIGGINS RDNorwood Park—Completed2 daysInternetCity 311
9/15/20255945 S RICHMOND STChicago Lawn15Completed9 daysInternetCity 311
9/15/2025834 W MONROE STNear West Side34Completed1 dayAlderman's OfficeCity 311
9/15/20253221 W GEORGE STAvondale35Completed10 daysInternetCity 311
9/15/2025111 S WACKER DRLoop42Completed1 dayAlderman's OfficeCity 311
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