RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4587 locations in the last 30 days (4746 reports) · Last sighting 11 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

1,046 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/23/20263249 N KEDZIE AVEAvondale33Open—InternetCity 311
9/23/20264430 S WHIPPLE STBrighton Park12Open—Mobile DeviceCity 311
9/23/20267137 S VERNON AVEGreater Grand Crossing6Open—Mobile DeviceCity 311
9/23/20264508 N MOZART STAlbany Park33Open—Mobile DeviceCity 311
9/23/20264810 S CHAMPLAIN AVEGrand Boulevard4Completed2 daysInternetCity 311
9/23/20264247 S SACRAMENTO AVEBrighton Park12Open—Mobile DeviceCity 311
9/23/20264356 S SACRAMENTO AVEBrighton Park12Open—Mobile DeviceCity 311
9/23/20264403 S SACRAMENTO AVEBrighton Park12Open—Mobile DeviceCity 311
9/23/20264351 S SACRAMENTO AVEBrighton Park12Open—Mobile DeviceCity 311
9/23/20261700 S WENTWORTH AVENear South Side11Open—InternetCity 311
9/23/20265218 N LIANO AVEJefferson Park45Open—InternetCity 311
9/23/20264104 N MOZART STIrving Park33Open—InternetCity 311
9/23/20264718 S LEAMINGTON AVEGarfield Ridge22Open—Phone CallCity 311
9/23/20262918 S PRINCETON AVEArmour Square11Open—InternetCity 311
9/23/2026928 N HARDING AVEHumboldt Park37Open—Phone CallCity 311
9/23/20263034 N AVERS AVEAvondale31Open—InternetCity 311
9/23/20264829 N HARDING AVEAlbany Park39Open—InternetCity 311
9/23/20269611 S LEast Side10Open—Mobile DeviceCity 311
9/23/20265606 S PEORIA STEnglewood16Open—Phone CallCity 311
9/23/202611419 S THROOP STMorgan Park21Completed2 daysMobile DeviceCity 311
9/23/20264135 N SACRAMENTO AVEIrving Park33Open—Phone CallCity 311
9/23/2026739 N HAMLIN AVEHumboldt Park27Open—Mobile DeviceCity 311
9/23/20263340 N NORDICA AVEDunning38Open—Mobile DeviceCity 311
9/23/20268106 S PAULINA STAuburn Gresham17Open—InternetCity 311
9/23/20263346 N SPRINGFIELD AVEAvondale30Open—Phone CallCity 311
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