RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4263 locations in the last 30 days (4416 reports) · Last sighting 16 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

56,467 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/24/20259803 S FOREST AVERoseland9Completed10 daysMobile DeviceCity 311
8/25/20256659 W 64TH PLClearing13Completed10 daysInternetCity 311
8/18/202510509 S HOMAN AVEMount Greenwood19Completed10 daysInternetCity 311
10/4/20266143 W PETERSON AVENorwood Park45Completed10 daysMobile DeviceCity 311
7/25/20253916 W 84TH PLAshburn18Completed10 daysPhone CallCity 311
8/15/20265240 N WESTERN AVELincoln Square40Completed10 daysMobile DeviceCity 311
9/22/202511016 S SPRINGFIELD AVEMount Greenwood19Completed10 daysAlderman's OfficeCity 311
8/12/20252552 E 93RD STCalumet Heights7Completed10 daysInternetCity 311
8/17/20251600 S DEARBORN STNear South Side3Completed10 daysMobile DeviceCity 311
8/4/20252318 W MONTANA STLogan Square32Completed10 daysInternetCity 311
7/18/20263711 N NOTTINGHAMDunning38Completed10 daysSalesforce Mobile AppCity 311
8/9/20266712 W SCHREIBER AVENorwood Park41Completed10 daysInternetCity 311
7/24/20266257 W LAWRENCE AVEPortage Park41Completed10 daysPhone CallCity 311
7/20/20261645 W WALTON STWest Town1Completed10 daysPhone CallCity 311
8/2/20266239 W FLETCHER STBelmont Cragin30Completed10 daysMobile DeviceCity 311
7/21/20263757 N HERMITAGE AVELake View47Completed10 daysInternetCity 311
8/1/20258213 S MARSHFIELD AVEAuburn Gresham17Completed10 daysPhone CallCity 311
8/31/20261734 N SAWYER AVEHumboldt Park26Completed10 daysMobile DeviceCity 311
8/30/20253743 W WRIGHTWOOD AVELogan Square35Completed10 daysMobile DeviceCity 311
9/2/20255925 S LOOMIS STWest Englewood16Completed10 daysAlderman's OfficeCity 311
8/9/20262617 W FULLERTON AVELogan Square1Completed10 daysMobile DeviceCity 311
9/8/20262925 W RASCHER AVELincoln Square39Completed10 daysPhone CallCity 311
7/21/20262653 W GEORGE STAvondale35Completed10 daysMobile DeviceCity 311
8/23/20263724 N KEELER AVEIrving Park30Completed10 daysInternetCity 311
9/15/20264203 N KILDARE AVEIrving Park39Completed10 daysMobile DeviceCity 311
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