RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4479 locations in the last 30 days (4640 reports) · Last sighting 21 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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/3/2026722 W OAKDALE AVELake View44Completed16 daysMobile DeviceCity 311
8/30/2026542 N HARDING AVEHumboldt Park37Completed16 daysInternetCity 311
8/24/20267229 N DAMEN AVERogers Park49Completed16 daysPhone CallCity 311
8/2/20257800 W SUMMERDALE AVENorwood Park41Completed16 daysMobile DeviceCity 311
8/9/20262626 N DAYTON STLincoln Park43Completed16 daysInternetCity 311
8/11/20251834 N DAMEN AVELogan Square32Completed16 daysMobile DeviceCity 311
8/3/20262610 N LARAMIE AVEBelmont Cragin31Completed16 daysInternetCity 311
8/10/20265348 W WARNER AVEPortage Park38Completed16 daysMobile DeviceCity 311
8/30/20263710 N ALBANY AVEIrving Park33Completed16 daysMobile DeviceCity 311
8/18/20257615 N BOSWORTH AVERogers Park49Completed16 daysPhone CallCity 311
8/11/20253801 W 59TH PLWest Lawn23Completed16 daysPhone CallCity 311
8/30/20266315 S CALIFORNIA AVEChicago Lawn16Completed16 daysMobile DeviceCity 311
8/24/20267345 N RIDGE AVERogers Park49Completed16 daysPhone CallCity 311
8/4/20253742 W 60TH PLWest Lawn23Completed16 daysPhone CallCity 311
8/6/20252522 W CHICAGO AVEWest Town36Completed16 daysMobile DeviceCity 311
8/3/20264706 N LAMON AVEPortage Park45Completed16 daysInternetCity 311
8/9/20262105 N MAJOR AVEBelmont Cragin36Completed16 daysPhone CallCity 311
8/25/20262713 N MARSHFIELD AVELincoln Park32Completed16 daysPhone CallCity 311
8/3/20262237 N ORCHARD STLincoln Park43Completed16 daysInternetCity 311
9/5/20265318 S CALIFORNIA AVEGage Park14Completed16 daysMobile DeviceCity 311
8/19/20254538 W FULLERTON AVEHermosa31Completed16 daysAlderman's OfficeCity 311
8/19/20254558 W ALTGELD STHermosa31Completed16 daysAlderman's OfficeCity 311
8/3/202510547 S MEast Side10Completed16 daysInternetCity 311
8/19/20254556 W DEMING PLHermosa31Completed16 daysAlderman's OfficeCity 311
8/19/20254558 W PARKER AVEHermosa31Completed16 daysAlderman's OfficeCity 311
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