RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4547 locations in the last 30 days (4694 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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/10/20255524 N SPAULDING AVENorth Park39Completed9 daysInternetCity 311
9/10/20255641 N MANGO AVEJefferson Park45Completed8 daysMobile DeviceCity 311
9/10/20255741 W PENSACOLA AVEPortage Park38Completed13 daysMobile DeviceCity 311
9/10/20256332 S MAY STEnglewood16Completed9 daysMobile DeviceCity 311
9/10/20259100 S HARPER AVECalumet Heights8Completed8 daysAlderman's OfficeCity 311
9/10/20259200 S HARPER AVECalumet Heights8Completed8 daysAlderman's OfficeCity 311
9/10/20252110 W WAVELAND AVENorth Center47Completed6 daysPhone CallCity 311
9/10/2025344 E 45TH STGrand Boulevard3Completed8 daysPhone CallCity 311
9/10/2025514 E 50TH PLGrand Boulevard20Completed13 daysInternetCity 311
9/10/20253015 W LELAND AVEAlbany Park33Completed8 daysMobile DeviceCity 311
9/10/2025344 E 45TH STGrand Boulevard3Completed8 daysPhone CallCity 311
9/10/2025344 E 45TH STGrand Boulevard3Completed8 daysPhone CallCity 311
9/10/20252433 S ST LOUIS AVESouth Lawndale22Completed9 daysMobile DeviceCity 311
9/10/20255404 W ARDMORE AVEJefferson Park39Completed9 daysMobile DeviceCity 311
9/10/20256645 S PULASKI RDWest Lawn23Completed12 daysMobile DeviceCity 311
9/10/20252629 N MONITOR AVEBelmont Cragin30Completed12 daysMobile DeviceCity 311
9/10/20252651 W RASCHER AVELincoln Square40Completed9 daysMobile DeviceCity 311
9/10/20255849 S NEWLAND AVEGarfield Ridge13Completed12 daysMobile DeviceCity 311
9/10/20254717 N PAULINA STUptown47Completed8 daysMobile DeviceCity 311
9/10/20252022 N LAWLER AVEBelmont Cragin26Completed13 daysInternetCity 311
9/10/20252023 N LECLAIRE AVEBelmont Cragin26Completed13 daysInternetCity 311
9/10/2025651 W SHERIDAN RDLake View46Completed6 daysInternetCity 311
9/10/2025665 W SHERIDAN RDLake View46Completed13 daysInternetCity 311
9/10/20256047 S WHIPPLE STChicago Lawn15Completed8 daysInternetCity 311
9/10/20253100 N WESTERN AVENorth Center47Completed9 daysInternetCity 311
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