RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4450 locations in the last 30 days (4621 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

57,792 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/29/20255329 W HENDERSON STPortage Park31Completed5 daysInternetCity 311
10/29/20256533 S JUSTINE STWest Englewood16Completed1 dayPhone CallCity 311
10/29/20256929 S ARTESIAN AVEChicago Lawn16Completed1 dayPhone CallCity 311
10/29/20254822 W NEWPORT AVEPortage Park31Completed1 dayPhone CallCity 311
10/29/20255221 W NELSON STBelmont Cragin31Completed1 dayPhone CallCity 311
10/29/20254021 N SAWYER AVEIrving Park33Completed1 dayPhone CallCity 311
10/29/2025611 E 50TH PLGrand Boulevard20Completed2 daysMobile DeviceCity 311
10/29/20258200 S MARSHFIELD AVEAuburn Gresham17Completed5 daysPhone CallCity 311
10/29/20254524 S TROY STBrighton Park12Completed1 dayPhone CallCity 311
10/29/20252001 S HALSTED STLower West Side25Completed2 daysMobile DeviceCity 311
10/29/2025918 N OAKLEY BLVDWest Town36Completed1 dayPhone CallCity 311
10/29/202510814 S BEast Side10Completed5 daysInternetCity 311
10/29/20252110 N MEADE AVEBelmont Cragin36Completed1 dayPhone CallCity 311
10/29/20256435 S KOLIN AVEWest Lawn13Completed5 daysPhone CallCity 311
10/29/20252035 N NAGLE AVEBelmont Cragin36Canceled0 daysPhone CallCity 311
10/29/20256154 S RUTHERFORD AVEClearing13Completed5 daysAlderman's OfficeCity 311
10/29/20252035 N NAGLE AVEBelmont Cragin36Completed1 dayPhone CallCity 311
10/29/20253520 N KILDARE AVEIrving Park30Completed5 daysAlderman's OfficeCity 311
10/29/20252811 S KOSTNER AVESouth Lawndale22Completed1 dayAlderman's OfficeCity 311
10/29/20256270 N CICERO AVEForest Glen39Completed1 dayPhone CallCity 311
10/29/20251521 N PAULINA STWest Town1Completed1 dayInternetCity 311
10/29/20254819 W ROSEMONT AVEForest Glen39Completed1 dayPhone CallCity 311
10/29/20252445 N HAMLIN AVELogan Square35Completed2 daysPhone CallCity 311
10/29/20252946 N SPRINGFIELD AVEAvondale31Completed7 daysPhone CallCity 311
10/29/20258435 S MARSHFIELD AVEAuburn Gresham18Completed1 dayInternetCity 311
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