RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4638 locations in the last 30 days (4787 reports) · Last sighting 20 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

55,375 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/4/20261720 W JUNEWAY TERRogers Park49Completed2 daysMobile DeviceCity 311
7/6/20261720 W RASCHER AVEEdgewater40Completed4 daysInternetCity 311
5/28/20261720 W SCHOOL STLake View32Completed5 daysMobile DeviceCity 311
6/22/20261720 W WINNEMAC AVEUptown40Completed4 daysInternetCity 311
9/6/20251721 N DAYTON STLincoln Park43Completed11 daysInternetCity 311
8/25/20251721 N FAIRFIELD AVEWest Town26Completed11 daysMobile DeviceCity 311
8/27/20261721 N KIMBALL AVEHumboldt Park26Completed13 daysInternetCity 311
10/12/20251721 N KIMBALL AVEHumboldt Park26Completed10 daysInternetCity 311
5/15/20261721 N RICHMOND STWest Town26Completed4 daysMobile DeviceCity 311
11/17/20251721 N SHEFFIELD AVELincoln Park2Completed2 daysMobile DeviceCity 311
10/15/20251721 S HALSTED STLower West Side25Completed7 daysPhone CallCity 311
7/25/20251721 W 21ST STLower West Side25Completed7 daysMobile DeviceCity 311
9/1/20261721 W JULIAN STWest Town1Completed14 daysMobile DeviceCity 311
9/20/20251721 W WRIGHTWOOD AVELincoln Park32Completed10 daysInternetCity 311
10/2/20251722 N AUSTIN AVEAustin29Completed6 daysAlderman's OfficeCity 311
9/11/20251722 N LINDER AVEAustin37Completed11 daysInternetCity 311
7/23/20261722 S CLINTON STLower West Side25Completed11 daysPhone CallCity 311
9/23/20251722 W 48TH STNew City15Completed8 daysPhone CallCity 311
3/6/20261722 W BELLE PLAINE AVELake View47Completed4 daysPhone CallCity 311
6/23/20261722 W BELLE PLAINE AVELake View47Completed2 daysAlderman's OfficeCity 311
10/21/20251722 W DIVERSEY PKWYLake View32Completed7 daysInternetCity 311
5/13/20261722 W EDMAIRE STMorgan Park21Completed6 daysPhone CallCity 311
7/14/20261722 W ESTES AVERogers Park49Completed8 daysInternetCity 311
5/12/20261722 W GREGORY STEdgewater40Completed2 daysInternetCity 311
7/17/20261722 W GREGORY STEdgewater40Completed11 daysInternetCity 311
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