RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4422 locations in the last 30 days (4583 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

56,907 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/10/20255805 W 63RD PLClearing13Completed10 daysAlderman's OfficeCity 311
10/10/20251956 W DIVISION STWest Town1Completed7 daysInternetCity 311
10/10/20252812 N WHIPPLE STAvondale35Completed10 daysInternetCity 311
10/10/20255937 N NAGLE AVENorwood Park45Completed10 daysPhone CallCity 311
10/10/202521 W 59TH STWashington Park20Completed5 daysPhone CallCity 311
10/10/20254640 N ASHLAND AVEUptown47Completed5 daysAlderman's OfficeCity 311
10/10/20254601 S KEDZIE AVEBrighton Park14Completed10 daysInternetCity 311
10/10/20254907 N NASHVILLE AVENorwood Park41Completed7 daysMobile DeviceCity 311
10/10/20255545 W GIDDINGS STPortage Park45Completed10 daysInternetCity 311
10/10/20255537 W GIDDINGS STPortage Park45Completed10 daysInternetCity 311
10/10/20252015 S RACINE AVELower West Side25Completed7 daysInternetCity 311
10/10/20253043 W EASTWOOD AVEAlbany Park33Completed11 daysInternetCity 311
10/10/20253675 N ELSTON AVEIrving Park33Completed11 daysMobile DeviceCity 311
10/10/20253248 N OAKLEY AVENorth Center32Completed12 daysPhone CallCity 311
10/10/20256608 S MARQUETTE RDWoodlawn20Completed5 daysPhone CallCity 311
10/10/20255431 N NEENAH AVENorwood Park41Completed7 daysInternetCity 311
10/10/20251247 W WELLINGTON AVELake View32Completed10 daysInternetCity 311
10/10/2025622 W CORNELIA AVELake View46Completed10 daysInternetCity 311
10/10/20255010 N WOLCOTT AVELincoln Square40Completed5 daysInternetCity 311
10/10/2025828 N CALIFORNIA AVEWest Town36Completed6 daysMobile DeviceCity 311
10/10/20253459 W BELMONT AVEAvondale35Completed10 daysMobile DeviceCity 311
10/10/20255445 S KARLOV AVEWest Elsdon23Completed11 daysInternetCity 311
10/10/20251635 S HOMAN AVENorth Lawndale24Completed12 daysMobile DeviceCity 311
10/10/20254031 W KAMERLING AVEHumboldt Park37Completed7 daysMobile DeviceCity 311
10/10/20256826 S WABASH AVEGreater Grand Crossing6Completed6 daysMobile DeviceCity 311
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