RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4538 locations in the last 30 days (4693 reports) · Last sighting 21 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

53,552 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/1/20263758 W EDDY STAvondale30Completed12 daysMobile DeviceCity 311
9/1/20263136 W BLOOMINGDALE AVELogan Square26Completed15 daysMobile DeviceCity 311
9/1/20261543 N CLEVELAND AVENear North Side2Completed3 daysMobile DeviceCity 311
9/1/20264136 W CRYSTAL STHumboldt Park37Completed14 daysMobile DeviceCity 311
9/1/20266754 S CARPENTER STEnglewood16Completed14 daysMobile DeviceCity 311
9/1/20266759 S CARPENTER STEnglewood16Completed14 daysMobile DeviceCity 311
9/1/20263526 N ASHLAND AVELake View47Completed13 daysInternetCity 311
9/1/20265435 N NEWLAND AVENorwood Park41Completed13 daysMobile DeviceCity 311
9/1/20266527 N LAKEWOOD AVERogers Park49Completed13 daysInternetCity 311
9/1/20263722 N RICHMOND STIrving Park35Completed14 daysInternetCity 311
9/1/20261903 W LARCHMONT AVENorth Center47Completed14 daysInternetCity 311
9/1/20261243 S THROOP STNear West Side28Completed7 daysInternetCity 311
9/1/20263921 N ASHLAND AVELake View46Completed16 daysInternetCity 311
9/1/20265229 W NEWPORT AVEPortage Park31Completed13 daysInternetCity 311
9/1/20261842 W BYRON STNorth Center47Completed15 daysMobile DeviceCity 311
9/1/20264654 N GREENVIEW AVEUptown47Completed15 daysInternetCity 311
9/1/20265346 N NOTTINGHAM AVENorwood Park41Completed13 daysInternetCity 311
9/1/20261242 N MAPLEWOOD AVEWest Town26Completed15 daysInternetCity 311
9/1/20265943 W EDDY STPortage Park30Completed12 daysMobile DeviceCity 311
9/1/20264111 N WESTERN AVENorth Center47Completed15 daysInternetCity 311
9/1/20265934 W CORNELIA AVEPortage Park30Completed12 daysInternetCity 311
9/1/20261920 N KEDZIE AVELogan Square26Completed15 daysMobile DeviceCity 311
9/1/20262123 W WELLINGTON AVENorth Center32Completed15 daysInternetCity 311
9/1/20262123 W WELLINGTON AVENorth Center32Completed15 daysMobile DeviceCity 311
9/1/20261729 W POTOMAC AVEWest Town1Completed14 daysMobile DeviceCity 311
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