RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4534 locations in the last 30 days (4688 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

53,915 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/14/2025349 W 28TH PLArmour Square11Completed1 dayPhone CallCity 311
8/14/20251620 W ADDISON STLake View47Completed11 daysPhone CallCity 311
8/14/202531 N MENARD AVEAustin29Completed11 daysPhone CallCity 311
8/14/20253930 N JANSSEN AVELake View46Completed12 daysMobile DeviceCity 311
8/14/202510737 S CENTRAL PARK AVEMount Greenwood19Completed14 daysPhone CallCity 311
8/14/20255209 S RUTHERFORD AVEGarfield Ridge23Completed11 daysMobile DeviceCity 311
8/14/202510737 S CENTRAL PARK AVEMount Greenwood19Completed14 daysPhone CallCity 311
8/14/20256645 S ST LAWRENCE AVEWoodlawn20Completed12 daysPhone CallCity 311
8/14/20251815 N KARLOV AVEHermosa26Completed11 daysPhone CallCity 311
8/14/20255152 S SACRAMENTO AVEGage Park14Completed1 dayPhone CallCity 311
8/14/20251815 N KARLOV AVEHermosa26Completed11 daysPhone CallCity 311
8/14/20255305 S FRANCISCO AVEGage Park14Completed1 dayPhone CallCity 311
8/14/20252515 W 110TH PLMorgan Park19Completed1 dayPhone CallCity 311
8/14/20252059 N LACROSSE AVEBelmont Cragin26Completed1 dayPhone CallCity 311
8/14/20254226 N CENTRAL PARK AVEIrving Park33Completed11 daysInternetCity 311
8/14/20251710 N KEELER AVEHumboldt Park26Completed1 dayPhone CallCity 311
8/14/20251934 W WABANSIA AVEWest Town32Completed1 dayPhone CallCity 311
8/14/20252023 W MCLEAN AVELogan Square32Completed1 dayPhone CallCity 311
8/14/20253848 N OAK PARK AVEDunning38Completed7 daysPhone CallCity 311
8/14/20253316 N OZARK AVEDunning38Completed1 dayPhone CallCity 311
8/14/20254145 N PARKSIDE AVEPortage Park38Completed1 dayPhone CallCity 311
8/14/20252027 N TRIPP AVEHermosa35Completed12 daysPhone CallCity 311
8/14/20253353 W 114TH STMount Greenwood19Completed1 dayPhone CallCity 311
8/14/20251524 W ARBOUR PLNear West Side27Completed13 daysInternetCity 311
8/14/20255729 W GRACE STPortage Park38Completed8 daysMobile DeviceCity 311
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