RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4572 locations in the last 30 days (4729 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

54,128 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/17/20253808 W 109TH PLMount Greenwood19Completed11 daysMobile DeviceCity 311
8/17/20253808 W 109TH PLMount Greenwood19Completed11 daysMobile DeviceCity 311
8/17/20251231 W NEWPORT AVELake View44Completed16 daysMobile DeviceCity 311
8/17/20255817 N KENMORE AVEEdgewater48Completed10 daysInternetCity 311
8/17/20254218 N MASON AVEPortage Park38Completed9 daysMobile DeviceCity 311
8/17/20251723 W ROSCOE STLake View32Completed9 daysMobile DeviceCity 311
8/17/20256632 N GLENWOOD AVERogers Park49Completed10 daysMobile DeviceCity 311
8/17/20253930 W 56TH PLWest Elsdon23Completed10 daysMobile DeviceCity 311
8/17/20254832 W WARWICK AVEPortage Park30Completed9 daysMobile DeviceCity 311
8/17/20255715 W DAKIN STPortage Park38Completed9 daysInternetCity 311
8/17/20251607 S WABASH AVENear South Side3Completed10 daysInternetCity 311
8/17/20257805 W THORNDALE AVENorwood Park41Completed8 daysInternetCity 311
8/17/20251706 W SUPERIOR STWest Town1Completed8 daysInternetCity 311
8/17/20257642 W BELMONT AVEDunning38Completed9 daysMobile DeviceCity 311
8/17/20257408 S INDIANA AVEGreater Grand Crossing6Completed9 daysMobile DeviceCity 311
8/17/20253639 W CORTLAND STLogan Square26Completed8 daysInternetCity 311
8/17/20254022 N CENTRAL AVEPortage Park38Completed3 daysMobile DeviceCity 311
8/17/20253848 N OAK PARK AVEDunning38Completed9 daysAlderman's OfficeCity 311
8/17/20253846 N OAK PARK AVEDunning38Completed9 daysAlderman's OfficeCity 311
8/17/20251225 W WRIGHTWOOD AVELincoln Park32Completed12 daysInternetCity 311
8/17/20255835 S CHRISTIANA AVEGage Park14Completed8 daysInternetCity 311
8/17/20253751 N KENMORE AVELake View44Completed16 daysInternetCity 311
8/17/20252609 W 106TH STBeverly19Completed8 daysMobile DeviceCity 311
8/17/20251120 W 76TH STAuburn Gresham17Completed9 daysInternetCity 311
8/17/20253542 W CERMAK RDNorth Lawndale24Completed9 daysInternetCity 311
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