RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4466 locations in the last 30 days (4626 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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/26/20266260 W BRYN MAWR AVENorwood Park45Completed15 daysAlderman's OfficeCity 311
9/27/2023740 S FEDERAL STLoop4Completed15 daysMobile DeviceCity 311
8/4/20265031 N NORTHWEST HWYJefferson Park45Completed15 daysMobile DeviceCity 311
8/18/202610418 S GEast Side10Completed15 daysMobile DeviceCity 311
9/1/20264740 N ASHLAND AVEUptown47Completed15 daysPhone CallCity 311
8/25/20266010 N MARMORA AVEJefferson Park39Completed15 daysMobile DeviceCity 311
8/18/20251321 W COLUMBIA AVERogers Park49Completed15 daysInternetCity 311
8/12/20255424 W 64TH STClearing13Completed15 daysAlderman's OfficeCity 311
8/18/20251317 W COLUMBIA AVERogers Park49Completed15 daysInternetCity 311
9/1/20261601 W MONTROSE AVELake View47Completed15 daysPhone CallCity 311
8/10/20265200 N MEADE AVEJefferson Park45Completed15 daysMobile DeviceCity 311
8/10/20265202 N MEADE AVEJefferson Park45Completed15 daysMobile DeviceCity 311
8/11/20254509 N LAPORTE AVEPortage Park45Completed15 daysAlderman's OfficeCity 311
9/5/20234925 S BLACKSTONE AVEKenwood4Completed15 daysMobile DeviceCity 311
8/31/20263235 N RICHMOND STAvondale33Completed15 daysInternetCity 311
7/27/20263317 N OCONTO AVEDunning38Completed15 daysMobile DeviceCity 311
9/6/20262643 W CRYSTAL STWest Town26Completed15 daysInternetCity 311
8/6/20262234 N SPRINGFIELD AVELogan Square35Completed15 daysInternetCity 311
8/16/20264562 N MILWAUKEE AVEPortage Park45Completed15 daysInternetCity 311
8/6/20263921 W BELDEN AVELogan Square35Completed15 daysInternetCity 311
8/18/20257512 N GREENVIEW AVERogers Park49Completed15 daysMobile DeviceCity 311
9/8/20262927 N MELVINA AVEBelmont Cragin30Completed15 daysMobile DeviceCity 311
8/4/20263460 N LARAMIE AVEPortage Park31Completed15 daysPhone CallCity 311
8/4/20265101 W GEORGE STBelmont Cragin31Completed15 daysPhone CallCity 311
8/10/20264304 N CAMPBELL AVENorth Center47Completed15 daysPhone CallCity 311
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