RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4571 locations in the last 30 days (4751 reports) · Last sighting 15 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

58,010 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/24/20262535 W MEDILL AVELogan Square1Completed1 dayMobile DeviceCity 311
8/28/20262535 W MEDILL AVELogan Square1Completed13 daysMobile DeviceCity 311
7/8/20262535 W NORTH AVEWest Town1Completed7 daysInternetCity 311
2/19/20262536 N BURLING STLincoln Park43Completed4 daysPhone CallCity 311
6/20/20262536 N NEVA AVEMontclare29Completed4 daysInternetCity 311
10/17/20252536 S MILLARD AVESouth Lawndale22Completed3 daysInternetCity 311
8/14/20252536 W 109TH PLMorgan Park19Completed14 daysAlderman's OfficeCity 311
6/22/20262536 W 39TH PLBrighton Park12Completed4 daysInternetCity 311
8/29/20262536 W 83RD STAshburn18Completed6 daysMobile DeviceCity 311
6/28/20262536 W AUGUSTA BLVDWest Town36Completed4 daysMobile DeviceCity 311
8/30/20252536 W CORTEZ STWest Town36Completed10 daysMobile DeviceCity 311
7/11/20262536 W COYLE AVEWest Ridge40Completed5 daysMobile DeviceCity 311
9/14/20262536 W COYLE AVEWest Ridge40Completed11 daysMobile DeviceCity 311
6/20/20262536 W CULLOM AVENorth Center47Completed3 daysMobile DeviceCity 311
8/30/20252536 W THOMAS STWest Town36Completed11 daysMobile DeviceCity 311
4/28/20262537 N HALSTED STLincoln Park43Completed1 dayAlderman's OfficeCity 311
7/29/20262537 N MONT CLARE AVEMontclare29Completed2 daysMobile DeviceCity 311
8/18/20262537 N MONT CLARE AVEMontclare29Completed13 daysMobile DeviceCity 311
2/27/20262537 N SEMINARY AVELincoln Park43Completed5 daysInternetCity 311
8/11/20262537 S TRUMBULL AVESouth Lawndale22Completed2 daysPhone CallCity 311
7/29/20262537 S TRUMBULL AVESouth Lawndale22Completed9 daysPhone CallCity 311
8/11/20262537 S TRUMBULL AVESouth Lawndale22Completed2 daysPhone CallCity 311
7/31/20262537 S TRUMBULL AVESouth Lawndale22Completed11 daysPhone CallCity 311
9/29/20262537 W 107TH STMorgan Park19Completed3 daysPhone CallCity 311
9/29/20262537 W 107TH STMorgan Park19Completed3 daysPhone CallCity 311
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