RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4793 locations in the last 30 days (4945 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.

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

55,375 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/10/20261704 N HUMBOLDT BLVDHumboldt Park26Completed3 daysPhone CallCity 311
1/5/20261704 N ORCHARD STLincoln Park2Completed1 dayAlderman's OfficeCity 311
8/12/20261704 S CARPENTER STLower West Side25Completed6 daysInternetCity 311
5/5/20261704 S INDIANA AVENear South Side3Completed1 dayInternetCity 311
8/13/20261704 S UNION AVELower West Side25Completed14 daysPhone CallCity 311
9/15/20251704 W 81ST STAuburn Gresham17Completed9 daysMobile DeviceCity 311
9/25/20261704 W 91ST STWashington Heights21Open—Phone CallCity 311
10/8/20261704 W JUNEWAY TERRogers Park49Open—Phone CallCity 311
8/19/20251704 W NELSON STLake View32Completed14 daysInternetCity 311
6/13/20261704 W WINNEMAC AVEUptown40Completed4 daysInternetCity 311
5/17/20261704 W WINNEMAC AVEUptown40Completed2 daysInternetCity 311
9/14/20251705E W LE MOYNE STWest Town1Completed10 daysMobile DeviceCity 311
6/22/20261705 N LINDER AVEAustin37Completed3 daysInternetCity 311
9/26/20251705 N MENARDAustin29Completed6 daysSalesforce Mobile AppCity 311
6/1/20261705 N MENARDAustin29Completed4 daysSalesforce Mobile AppCity 311
9/28/20261705 N MENARD AVEAustin29Completed10 daysPhone CallCity 311
9/26/20251705 N MONITORAustin29Completed6 daysSalesforce Mobile AppCity 311
10/8/20251705 N PARKSIDE AVEAustin29Completed2 daysAlderman's OfficeCity 311
2/9/20261705 N SHEFFIELD AVELincoln Park2Completed1 dayMobile DeviceCity 311
9/6/20261705 N SHEFFIELD AVELincoln Park2Completed9 daysMobile DeviceCity 311
9/25/20261705 W 91ST STWashington Heights21Open—Phone CallCity 311
10/21/20251705 W 91ST STWashington Heights21Completed7 daysMobile DeviceCity 311
9/18/20251705 W BELMONT AVELake View32Completed8 daysInternetCity 311
8/29/20261705 W CARMEN AVEUptown40Completed13 daysInternetCity 311
8/3/20261706 N CLYBOURN AVELincoln Park2Completed7 daysMobile DeviceCity 311
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