RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4591 locations in the last 30 days (4750 reports) · Last sighting 10 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

53,552 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/31/20268844 S MAY STAuburn Gresham21Completed14 daysInternetCity 311
9/2/20265717 S MOODY AVEGarfield Ridge13Completed14 daysInternetCity 311
9/4/20253135 N KENNETH AVEHermosa31Completed14 daysAlderman's OfficeCity 311
9/4/20253130 N KOSTNER AVEHermosa31Completed14 daysAlderman's OfficeCity 311
8/19/20261828 W GRACE STNorth Center47Completed14 daysPhone CallCity 311
9/14/20266645 S RICHMOND STChicago Lawn15Completed14 daysInternetCity 311
9/14/20266641 S RICHMOND STChicago Lawn15Completed14 daysInternetCity 311
8/28/20251625 W CHICAGO AVEWest Town1Completed14 daysMobile DeviceCity 311
8/12/20261146 W WASHBURNE AVENear West Side28Completed14 daysMobile DeviceCity 311
8/8/20231518 E 53RD STHyde Park4Completed14 daysMobile DeviceCity 311
9/15/20251751 W 35TH STMcKinley Park12Completed14 daysInternetCity 311
8/28/20263661 N ELSTON AVEIrving Park33Completed14 daysInternetCity 311
8/5/2025447 N SPRINGFIELD AVEHumboldt Park37Completed14 daysMobile DeviceCity 311
8/27/20261119 S CENTRAL PARK AVENorth Lawndale24Completed14 daysPhone CallCity 311
7/27/20262945 N MILWAUKEE AVEAvondale35Completed14 daysAlderman's OfficeCity 311
9/14/20266212 W CORNELIA AVEDunning30Completed14 daysAlderman's OfficeCity 311
9/9/202610626 S LOWE AVERoseland21Completed14 daysPhone CallCity 311
9/2/20263048 N KOSTNER AVEHermosa31Completed14 daysMobile DeviceCity 311
8/28/20265018 N LEAVITT STLincoln Square40Completed14 daysInternetCity 311
8/25/20261227 W 31ST PLBridgeport11Completed14 daysMobile DeviceCity 311
8/26/20266121 N MEADE AVENorwood Park39Completed14 daysPhone CallCity 311
8/6/20253104 N KENNETH AVEHermosa31Completed14 daysAlderman's OfficeCity 311
9/11/20263242 W PIERCE AVEHumboldt Park26Completed14 daysPhone CallCity 311
8/6/20253105 N KENNETH AVEHermosa31Completed14 daysAlderman's OfficeCity 311
7/31/20264739 N LONG AVEPortage Park45Completed14 daysAlderman's OfficeCity 311
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