RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4446 locations in the last 30 days (4609 reports) · Last sighting 12 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

53,341 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/7/20267616 N BOSWORTH AVERogers Park49Completed14 daysInternetCity 311
9/7/20269132 S CRANDON AVECalumet Heights7Completed2 daysInternetCity 311
9/7/20265741 W AINSLIE STJefferson Park45Completed11 daysInternetCity 311
9/7/20265007 N WESTERN AVELincoln Square40Completed10 daysMobile DeviceCity 311
9/7/20265328 S LATROBE AVEGarfield Ridge23Completed15 daysMobile DeviceCity 311
9/7/20266529 S KNOX AVEClearing13Completed9 daysMobile DeviceCity 311
9/7/20264930 N BERNARD STAlbany Park33Completed10 daysMobile DeviceCity 311
9/7/20268521 S STONY ISLAND AVEAvalon Park8Completed10 daysPhone CallCity 311
9/7/20263711 W ADDISON STAvondale30Completed10 daysInternetCity 311
9/7/2026210 S GREEN STNear West Side34Completed1 dayMobile DeviceCity 311
9/7/20268101 S MARSHFIELD AVEAuburn Gresham17Completed7 daysInternetCity 311
9/7/20261522 N HUDSON AVENear North Side2Completed8 daysPhone CallCity 311
9/7/20262928 N TALMAN AVEAvondale35Completed14 daysInternetCity 311
9/7/20264123 N ASHLAND AVELake View47Completed10 daysMobile DeviceCity 311
9/7/20262625 N WHIPPLE STLogan Square1Completed11 daysMobile DeviceCity 311
9/7/20262027 W CORTLAND STLogan Square32Completed2 daysMobile DeviceCity 311
9/7/20263600 W 70TH PLWest Lawn23Completed8 daysAlderman's OfficeCity 311
9/7/20263601 W 70TH PLWest Lawn23Completed9 daysAlderman's OfficeCity 311
9/7/20263601 W 71ST STWest Lawn23Completed8 daysAlderman's OfficeCity 311
9/7/20265118 S AUSTIN AVEGarfield Ridge23Completed15 daysInternetCity 311
9/7/20263600 W 71ST STWest Lawn23Completed8 daysPhone CallCity 311
9/7/20262254 W COULTER STLower West Side25Completed10 daysMobile DeviceCity 311
9/7/20263723 N ELSTON AVEIrving Park33Completed10 daysInternetCity 311
9/7/20261416 W FLETCHER STLake View32Completed11 daysInternetCity 311
9/7/20266350 N MERRIMAC AVENorwood Park39Completed10 daysInternetCity 311
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