RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4508 locations in the last 30 days (4662 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

53,552 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/21/20264817 W WEST END AVEAustin28Completed14 daysInternetCity 311
8/11/20256522 N NIXON AVENorwood Park41Completed14 daysAlderman's OfficeCity 311
7/21/20251853 N KEYSTONE AVEHermosa26Completed14 daysMobile DeviceCity 311
8/22/20252918 S LOWE AVEBridgeport11Completed14 daysMobile DeviceCity 311
9/9/20256633 W 63RD PLClearing13Completed14 daysInternetCity 311
9/7/20261736 N SPAULDING AVEHumboldt Park26Completed14 daysMobile DeviceCity 311
7/16/20266346 W MONTROSE AVEPortage Park38Completed14 daysInternetCity 311
9/11/20265911 W WILSON AVEPortage Park38Completed14 daysMobile DeviceCity 311
7/21/20251839 N RICHMOND STLogan Square26Completed14 daysAlderman's OfficeCity 311
9/8/20265606 S NARRAGANSETT AVEGarfield Ridge13Completed14 daysInternetCity 311
9/8/20265616 S NARRAGANSETT AVEGarfield Ridge13Completed14 daysInternetCity 311
9/5/20259840 S ESCANABA AVESouth Deering10Completed14 daysMobile DeviceCity 311
9/8/20252730 W 25TH STSouth Lawndale24Completed14 daysPhone CallCity 311
7/21/20251917 N KEYSTONE AVEHermosa26Completed14 daysAlderman's OfficeCity 311
8/10/20261547 W ALTGELD STLincoln Park32Completed14 daysMobile DeviceCity 311
9/3/20255450 N WASHTENAW AVELincoln Square40Completed14 daysAlderman's OfficeCity 311
9/14/20266322 N ALBANY AVEWest Ridge50Completed14 daysInternetCity 311
8/26/20256230 W NORWOOD STNorwood Park39Completed14 daysMobile DeviceCity 311
7/17/20265328 W CUYLER AVEPortage Park38Completed14 daysMobile DeviceCity 311
9/9/20253554 W 84TH STAshburn18Completed14 daysPhone CallCity 311
8/28/20254709 N SACRAMENTO AVEAlbany Park40Completed14 daysMobile DeviceCity 311
8/20/20252829 N MOZART STAvondale35Completed14 daysMobile DeviceCity 311
8/13/202610401 S FEast Side10Completed14 daysInternetCity 311
8/18/20268524 W CATHERINE AVEO'Hare41Completed14 daysMobile DeviceCity 311
8/17/20262378 N ELSTON CTLogan Square32Completed14 daysInternetCity 311
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