RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4476 locations in the last 30 days (4662 reports) · Last sighting 11 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

58,313 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/12/20258001 S HERMITAGE AVEAuburn Gresham17Completed1 dayMobile DeviceCity 311
11/12/20252711 S PRINCETON AVEArmour Square11Completed0 daysPhone CallCity 311
11/12/20254300 N MAJOR AVEPortage Park38Completed1 dayPhone CallCity 311
11/12/20251318 N ASTOR STNear North Side43Completed2 daysPhone CallCity 311
11/12/20251025 N WOOD STWest Town1Completed2 daysInternetCity 311
11/12/20253712 N MONTICELLO AVEIrving Park30Completed1 dayInternetCity 311
11/12/20253657 N KIMBALL AVEIrving Park35Completed1 dayInternetCity 311
11/12/20255101 W LEXINGTONAustin24Completed1 daySalesforce Mobile AppCity 311
11/12/20252116 N LAWNDALE AVELogan Square35Completed5 daysPhone CallCity 311
11/12/20251662 N BISSELL STLincoln Park43Canceled1 dayPhone CallCity 311
11/12/20251662 N BISSELL STLincoln Park43Canceled1 dayPhone CallCity 311
11/12/20251656 N BISSELL STLincoln Park43Canceled1 dayPhone CallCity 311
11/12/20252316 W HARRISON STNear West Side28Completed1 dayMobile DeviceCity 311
11/12/20255032 W PATTERSON AVEPortage Park30Completed1 dayAlderman's OfficeCity 311
11/12/20257282 W EVERELL AVENorwood Park41Completed1 dayMobile DeviceCity 311
11/12/20255104 W FLETCHER STBelmont Cragin31Completed1 dayPhone CallCity 311
11/12/20255624 S MCVICKER AVEGarfield Ridge13Completed1 dayPhone CallCity 311
11/12/2025207 N LECLAIRE AVEAustin28Completed1 dayPhone CallCity 311
11/12/20256443 N LEAVITTWest Ridge50Completed1 daySalesforce Mobile AppCity 311
11/12/20252206 N KOSTNER AVEHermosa26Completed2 daysMobile DeviceCity 311
11/12/20255514 W FARRAGUT AVEJefferson Park45Completed1 dayPhone CallCity 311
11/12/20255105 S LAMON AVEGarfield Ridge23Completed1 dayPhone CallCity 311
11/12/20253615 W BYRON STIrving Park30Completed1 dayInternetCity 311
11/12/20259135 S UNIVERSITY AVEBurnside8Completed0 daysMobile DeviceCity 311
11/12/20257250 S CLAREMONT AVEChicago Lawn18Completed1 dayPhone CallCity 311
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