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
10/25/20254557 S WALLACE STNew City15Completed5 daysInternetCity 311
10/25/20253249 N CENTRAL PARK AVEAvondale35Completed4 daysMobile DeviceCity 311
10/25/20256239 N NAPER AVENorwood Park45Completed6 daysPhone CallCity 311
10/25/20251037 N SPRINGFIELD AVEHumboldt Park37Completed5 daysMobile DeviceCity 311
10/25/20254128 W SCHOOL STIrving Park30Completed4 daysMobile DeviceCity 311
10/25/20254326 W WRIGHTWOOD AVEHermosa31Completed6 daysMobile DeviceCity 311
10/25/20251520 W 73RD STWest Englewood17Completed3 daysInternetCity 311
10/25/20251121 N CHRISTIANA AVEHumboldt Park26Completed4 daysInternetCity 311
10/25/20252055 N NATCHEZ AVEBelmont Cragin36Completed3 daysMobile DeviceCity 311
10/25/20257243 S ASHLAND AVEWest Englewood17Completed3 daysInternetCity 311
10/25/20254200 N MCVICKER AVEPortage Park38Completed5 daysMobile DeviceCity 311
10/25/20258840 S LUELLA AVECalumet Heights8Completed6 daysMobile DeviceCity 311
10/25/20255401 S CORNELL AVEHyde Park5Completed4 daysInternetCity 311
10/25/20254610 N MAGNOLIA AVEUptown46Completed5 daysPhone CallCity 311
10/25/20253241 N PANAMA AVEDunning38Completed5 daysMobile DeviceCity 311
10/25/20256431 N MOZART STWest Ridge50Completed5 daysPhone CallCity 311
10/25/20253818 W GEORGE STAvondale31Completed6 daysPhone CallCity 311
10/25/20252975 N LAWNDALE AVEAvondale35Completed5 daysPhone CallCity 311
10/25/20253045 E 79TH STSouth Chicago7Completed9 daysPhone CallCity 311
10/25/20252820 W NELSON STAvondale35Completed6 daysMobile DeviceCity 311
10/25/20251822 W WARNER AVENorth Center47Completed4 daysInternetCity 311
10/25/20253552 W 85TH PLAshburn18Completed5 daysPhone CallCity 311
10/25/20255348 W NELSON STBelmont Cragin31Completed6 daysInternetCity 311
10/25/20255237 W OAKDALE AVEBelmont Cragin31Completed6 daysMobile DeviceCity 311
10/25/20251826 W WARNER AVENorth Center47Completed4 daysMobile DeviceCity 311
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