RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4332 locations in the last 30 days (4496 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

57,500 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/25/20255210 S LUNA AVEGarfield Ridge23Completed4 daysMobile DeviceCity 311
10/25/20254419 N MAGNOLIA AVEUptown46Completed5 daysMobile DeviceCity 311
10/25/20254623 N CLARK STUptown46Completed5 daysInternetCity 311
10/25/20259421 S VERNON AVERoseland8Completed5 daysPhone CallCity 311
10/25/20255129 W POTOMAC AVEAustin37Completed4 daysInternetCity 311
10/25/20253067 S BONFIELD STBridgeport11Completed2 daysPhone CallCity 311
10/25/20251706 S LOOMIS STLower West Side25Completed5 daysMobile DeviceCity 311
10/25/20251928 S RACINE AVELower West Side25Completed5 daysMobile DeviceCity 311
10/25/20252018 S THROOP STLower West Side25Completed5 daysMobile DeviceCity 311
10/25/20251618 S LOOMIS STLower West Side25Completed5 daysMobile DeviceCity 311
10/25/20255235 S PARKSIDE AVEGarfield Ridge23Completed4 daysPhone CallCity 311
10/26/2025240 W 26TH STArmour Square11Completed2 daysMobile DeviceCity 311
10/26/20254734 N LAKE SHORE DR SBUptown46Completed5 daysMobile DeviceCity 311
10/26/20258714 S HONORE STAuburn Gresham18Completed4 daysPhone CallCity 311
10/26/20252149 W 95TH STBeverly19Completed4 daysPhone CallCity 311
10/26/2025526 N PAULINA STWest Town1Completed2 daysInternetCity 311
10/26/20252232 1/2 N SOUTHPORT AVELincoln Park2Completed5 daysMobile DeviceCity 311
10/26/20256200 N HARDING AVENorth Park39Completed4 daysInternetCity 311
10/26/20254957 S WABASH AVEGrand Boulevard3Completed3 daysPhone CallCity 311
10/26/20256438 S MARYLAND AVEWoodlawn20Completed2 daysPhone CallCity 311
10/26/20255037 S PRAIRIE AVEGrand Boulevard3Completed3 daysPhone CallCity 311
10/26/20252020 W MAYPOLE AVENear West Side27Completed3 daysPhone CallCity 311
10/26/20251412 W FILLMORE STNear West Side28Completed3 daysMobile DeviceCity 311
10/26/2025206 N KILDARE AVEWest Garfield Park28Completed3 daysMobile DeviceCity 311
10/26/2025533 E BOWEN AVEGrand Boulevard4Completed5 daysMobile DeviceCity 311
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