RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4697 locations in the last 30 days (4858 reports) · Last sighting 10 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

56,073 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/21/20253603 W WOLFRAM STAvondale35Completed10 daysInternetCity 311
9/21/20255134 N ST LOUIS AVENorth Park39Completed8 daysPhone CallCity 311
9/21/20252300 N MAJOR AVEBelmont Cragin36Completed10 daysInternetCity 311
9/21/20252235 W BELMONT AVENorth Center32Completed9 daysMobile DeviceCity 311
9/21/20252538 N MARMORA AVEBelmont Cragin30Completed3 daysInternetCity 311
9/21/20253134 N CENTRAL PARK AVEAvondale35Completed10 daysInternetCity 311
9/21/20253500 N NOTTINGHAM AVEDunning38Completed9 daysMobile DeviceCity 311
9/21/20251762 W MORSE AVERogers Park49Completed5 daysMobile DeviceCity 311
9/21/20251775 W MORSE AVERogers Park49Completed5 daysMobile DeviceCity 311
9/21/20253746 W WINDSOR AVEAlbany Park33Completed9 daysInternetCity 311
9/22/20259415 S HALSTED STWashington Heights21Completed5 daysMobile DeviceCity 311
9/22/20251031 W MAXWELL STNear West Side28Completed9 daysInternetCity 311
9/22/20253056 N RACINE AVELake View32Completed0 daysPhone CallCity 311
9/22/20259637 S LA SALLE STRoseland9Completed4 daysPhone CallCity 311
9/22/20259622 S LA SALLE STRoseland9Completed4 daysPhone CallCity 311
9/22/20255338 W WILSON AVEPortage Park45Completed8 daysMobile DeviceCity 311
9/22/20254820 W SUNNYSIDE AVEPortage Park45Completed8 daysMobile DeviceCity 311
9/22/20254936 S LAKE SHORE DR SBKenwood5Completed10 daysInternetCity 311
9/22/20255033 W BERTEAU AVEPortage Park38Completed9 daysMobile DeviceCity 311
9/22/20252311 W WASHINGTON BLVDNear West Side27Completed7 daysPhone CallCity 311
9/22/20251948 W MAYPOLE AVENear West Side27Completed8 daysMobile DeviceCity 311
9/22/20254861 N MERRIMAC AVEJefferson Park45Completed8 daysInternetCity 311
9/22/2025853 N WOLCOTT AVEWest Town36Completed7 daysInternetCity 311
9/22/2025853 N WOLCOTT AVEWest Town36Completed9 daysPhone CallCity 311
9/22/20254338 W LEXINGTON STWest Garfield Park24Completed3 daysPhone CallCity 311
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