RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4609 locations in the last 30 days (4769 reports) · Last sighting 19 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

54,128 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/28/20263946 W DICKENS AVELogan Square35Completed13 daysPhone CallCity 311
9/10/20269515 S MARQUETTE AVESouth Deering10Completed13 daysWalk-inCity 311
9/16/20262748 S TRUMBULL AVESouth Lawndale22Completed13 daysInternetCity 311
7/15/20265319 S WOODLAWN AVEHyde Park5Completed13 daysMobile DeviceCity 311
8/13/20264336 W PARKER AVEHermosa31Completed13 daysAlderman's OfficeCity 311
9/10/20269600 S MANISTEE AVESouth Deering10Completed13 daysWalk-inCity 311
9/17/20263636 W FLOURNOY STEast Garfield Park24Completed13 daysPhone CallCity 311
7/31/20264601 S EMERALD AVENew City15Completed13 daysAlderman's OfficeCity 311
9/15/20269740 S DOBSON AVEPullman8Completed13 daysInternetCity 311
8/23/20255729 N LANSING AVEForest Glen39Completed13 daysPhone CallCity 311
8/27/20254439 N MOBILE AVEPortage Park38Completed13 daysMobile DeviceCity 311
9/15/20265500 S CLAREMONT AVEGage Park15Completed13 daysAlderman's OfficeCity 311
9/15/20263920 N CALIFORNIA AVEIrving Park35Completed13 daysInternetCity 311
9/10/202610857 S EMERALD AVERoseland21Completed13 daysPhone CallCity 311
8/7/20261929 W HURON STWest Town36Completed13 daysMobile DeviceCity 311
9/15/20263745 N LINCOLN AVENorth Center47Completed13 daysInternetCity 311
8/29/20255424 N MOBILE AVEJefferson Park45Completed13 daysMobile DeviceCity 311
9/17/20267137 S DR MARTIN LUTHER KING JR DRGreater Grand Crossing6Completed13 daysPhone CallCity 311
9/12/20262818 N MULLIGAN AVEBelmont Cragin30Completed13 daysInternetCity 311
9/3/20261322 N MAPLEWOOD AVEWest Town26Completed13 daysPhone CallCity 311
7/15/20261400 N CENTRAL PARK AVEHumboldt Park26Completed13 daysPhone CallCity 311
8/28/20265237 N MEADE AVEJefferson Park45Completed13 daysMobile DeviceCity 311
7/14/20264500 N MEADE AVEPortage Park38Completed13 daysPhone CallCity 311
8/8/20253742 W SUNNYSIDE AVEAlbany Park33Completed13 daysPhone CallCity 311
8/5/20261928 W HURON STWest Town36Completed13 daysInternetCity 311
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