RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4408 locations in the last 30 days (4571 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

56,705 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/7/20257759 S HOYNE AVEAuburn Gresham18Completed7 daysAlderman's OfficeCity 311
10/7/20251000 N MARSHFIELD AVEWest Town1Completed2 daysAlderman's OfficeCity 311
10/7/20254521 N LAPORTE AVEPortage Park45Completed10 daysAlderman's OfficeCity 311
10/7/20255726 N KENMORE AVEEdgewater48Completed7 daysInternetCity 311
10/7/202510310 S AVENUE JEast Side10Completed3 daysWalk-inCity 311
10/7/20254130 W NELSON STAvondale31Completed1 dayAlderman's OfficeCity 311
10/7/20255850 N MULLIGAN AVENorwood Park45Completed10 daysAlderman's OfficeCity 311
10/7/20253620 S HOYNE AVEMcKinley Park12Completed3 daysAlderman's OfficeCity 311
10/7/20254032 W WELLINGTON AVEAvondale31Completed9 daysAlderman's OfficeCity 311
10/7/20254891 N AUSTIN AVEJefferson Park45Completed10 daysMobile DeviceCity 311
10/7/20253653 W 66TH STWest Lawn23Completed3 daysPhone CallCity 311
10/7/202511263 S CARPENTER STMorgan Park21Completed10 daysPhone CallCity 311
10/7/20253851 N ST LOUIS AVEIrving Park35Completed9 daysInternetCity 311
10/7/20253010 W 55TH STGage Park14Completed10 daysPhone CallCity 311
10/7/20257027 N GLENWOOD AVERogers Park49Completed9 daysAlderman's OfficeCity 311
10/7/20252208 N BURLING STLincoln Park43Completed7 daysPhone CallCity 311
10/7/20255859 N OTTAWA AVENorwood Park41Completed2 daysAlderman's OfficeCity 311
10/7/202520 E JACKSON BLVDLoop34Completed2 daysPhone CallCity 311
10/7/202520 E JACKSON BLVDLoop34Completed2 daysPhone CallCity 311
10/7/20256470 S NORMANDY AVEClearing13Completed2 daysInternetCity 311
10/7/20255155 N NAGLE AVEJefferson Park41Completed10 daysMobile DeviceCity 311
10/7/2025427 N TROY STHumboldt Park27Completed13 daysInternetCity 311
10/7/20257115 S SPRINGFIELD AVEWest Lawn23Completed7 daysAlderman's OfficeCity 311
10/7/20252414 E 89TH STCalumet Heights7Completed3 daysPhone CallCity 311
10/7/20251901 S MILLARD AVENorth Lawndale24Completed2 daysPhone CallCity 311
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